Range Technical Updates

July 2012

Training Documentation for Maserati Service Network Maserati Range Technical Updates Foreword

Foreword

Foreword

The aim of this document is to provide Maserati Technicians with essential information about the new contents introduced with the restyling of the GranTurismo MY 13 and the main updates relating to the Maserati range. The product range (GranTurismo, Quattroporte and GranCabrio/GranTurismo ) is presented for each MY, starting from MY09 and working up to MY13, discussing the main new contents and the relative characteristics. The chapter focusing on each MY also includes the data about the engines installed on the range (valve timing control device type, mechanical timing values, electrical timing values, etc.). The aim is to set out the updates introduced in chronological order, with the relative data, so that the technician can follow the progression of the changes made. This manual is provided as an addition to the Maserati Academy training programme.

Maserati Academy 2 Maserati Range Technical Updates Table of Contents

Table of Contents MY09 4 0. General information 4 1. Engine 12 3. 16 7. Safety devices 17 8. Electrical systems and functions 18 MY10 20 0. General information 20 1. Engine 24 8. Electrical systems and functions 28 MY11 31 0. General information 31 1. Engine 37 4. Braking system 43 5. Steering controls 44 7. Safety devices 46 8. Electrical systems and functions 53 MY12 54 0. General information 54 1. Engine 61 8. Electrical systems and functions 65 MY13 67 0. General information 67 1. Engine 72 3. Transmission 77 6. Suspensions and wheels 78 8. Electrical systems and functions 81 ENGINE SPECIFICATIONS (Mechanical phase - Electrical phase) 89

Maserati Trofeo World Series 2012

Maserati Academy 3 Maserati Range Technical Updates MY09

0. General information

2009 Range:

The new MY09 version of the Quattroporte was the outcome of a thorough renewal project, in terms of both styling and engineering. Five years after the model’s launch and with more than 15,000 sold, Maserati decided to offer reinterpretations of the , to aim for ambitious new goals. further refined the Quattroporte’s elegant design with more modern lines and clearer references to the distinctive features of the GranTurismo family. Under the bonnet, as well as the 4.2L the more powerful 4.7L version now also became available, still in combination with the automatic 6 speed gearbox. The GranTurismo S (M145GL) joined the Maserati range exactly one year after the launch of the GranTurismo, with Maserati revealing the first heir to the famed GT to the public. Created for those in search of a more dynamic version of the GranTurismo already on the market, the GranTurismo S, fitted with a 4.7L V8 engine and robotized rear-mounted gearbox, was more aggressive while still keeping faith with the GT tradition by delivering high levels of comfort to four occupants during long journeys. The GranTurismo S Automatic (M145HL) was the logical completion of the Maserati GranTurismo range. The model presented in 2009 combines the performance of the 4.7L engine, the most powerful in the range, with the unique comfort of ride provided by the automatic gearbox.

The 2009 range comprises the models listed below: GranTurismo (M145) Range • GranTurismo (M145ML) • GranTurismo S (M145GL) Robotized • GranTurismo S (M145HL) Automatic

Quattroporte (M139) Range • Quattroporte (M139HQ) • Quattroporte S (M139IQ) • Quattroporte SPORT GTS (M139MQ)

Maserati Academy 4 Maserati Range Technical Updates MY09

Quattroporte (M139)

The Quattroporte, the car that reinvented the luxury sports saloon segment, is a real Maserati masterpiece. Five years after the launch, the new MY09 version was the outcome of a thorough renewal project, in terms of both styling and engineering. Pininfarina further refined the Quattroporte’s elegant design with more modern lines and clearer references to the distinctive features of the GranTurismo family. Under the bonnet, as well as the 4.2L V8 engine the more powerful 4.7L version now also became available, still in combination with the automatic 6 speed gearbox.

The new Quattroporte range included three variants:

• Quattroporte: the quintessential Maserati luxury saloon. The car with 4.2L engine, provides a smooth ride and driving comfort. • Quattroporte S: the range’s flagship. This car features the 4.7L engine with improvements to the chassis dynamics to suit this higher-powered unit. With the Quattroporte S luxury reaches new heights. • The Quattroporte Sport GT S: launched in January 2009, this was the most successful synthesis of luxury saloon and high-performance Maserati had ever produced. The modifications to the chassis, gearbox and maximised handling and performance, for even greater enjoyment at the wheel.

Maserati Academy 5 Maserati Range Technical Updates MY09

Exterior

The stylistic changes included: updated front and grille, new front and rear light assemblies, new rear bumper, new wheel rim design, new rearview mirrors and completely restyled underdoor moulding covers. The front and rear light assembles are both of LED type, further underlining the Quattroporte's dynamic character.

External lights The Quattroporte MY09 is fitted with new lighting systems at both front and rear. The front light assemblies now feature beam regulation, a solution similar to that used on the GranTurismo (self-adapting ).

• Bi-xenon type • 17 LED direction indicators • Flash to pass • 12 LED stop function • Parking light with DRL function • 2 LED parking light • 10 LED direction indicators • 2 LED rear fog lights • Integral sidelights • 1 LED integral sidelight • Headlamp washing system • Reversing light • Automatic attitude monitoring and system with automatic beam adjustment on bends

Maserati Academy 6 Maserati Range Technical Updates MY09

Interior

In its interiors, as well as the availability of new combinations for personalising the finishes, the Quattroporte MY09 features a state-of-the-art InfoTainment system with a vast range of multimedia functions.

The interior of the new delivers an even higher level of comfort thanks to significant changes to the driving seat ergonomics, involving the new seat shape, the use of the multifunction steering wheel with racing grip, the controls closer together on the central console, the new graphics of the instrument panel, and a small storage compartment in the central tunnel. Quality of life in the rear seats is high, with excellent noise insulation and no vibrations. The new Quattroporte offers great flexibility in rear seat setup thanks to a large number of optionals, such as independent electric adjustment: the reach adjustment (10 cm) and separate tilt setting allow each occupant to find the position they like best, and travel in complete comfort. Another rear seat optional is heating, which also includes ventilation and massage. The new Maserati Quattroporte’s range of navigation and entertainment systems were completely updated, comprising the New Maserati Multimedia System and the Bose® Multi Media System. Developed by Marelli, the Multimedia System includes, as standard: on-board computer, satellite navigation system (where the digital cartography is available), CD- ROM and mp3 player, Hard Disk driver, mp3 music file Jukebox, 30 GB hard disk, voice controls, Bluetooth®, and USB/AUX-in port with USB reader function.

Maserati Academy 7 Maserati Range Technical Updates MY09

GranTurismo S (M145LL)

The sports version of the marque’s coupe, the Maserati GranTurismo S (MI45GL) was intended for those looking for a car with a unique identity. The 4.7 litre V8 engine can generate a power of 323 kW (440 HP). The system is used for engine and gearbox, the leading-edge of Maserati technology and a feature only used on the highest-performing cars. The suspensions maximise the Transaxle system’s potential thanks to the new fixed-setting dampers, with 10% more damping force, with revised compression and extension ratio and more rigid rear torsion bar. The braking system, developed in association with , guarantees constant, impeccable performance thanks to the Dual Cast technology.

Exterior The sportscar character of the GranTurismo S is underlined by Pininfarina’s modern, aggressive line, given added prestige by unmistakable details such as the red trims on the Maserati Trident and the Saetta logo, matching the standard colour of the brake calipers, as used on Maserati racing cars.

Maserati Academy 8 Maserati Range Technical Updates MY09

The GranTurismo S’s sportier nature is reflected to perfection in the new lines and new alloy wheels, dark headlamps, new aerodynamic underdoor moulding covers and a boot spoiler.

Interior

The seats have a central panel upholstered in with a new design, with horizontal piping; as well as the combination of Frau® Leather and Alcantara, the seat central panels are also available in Pekary leather.

Maserati Academy 9 Maserati Range Technical Updates MY09

GranTurismo S Automatic (M145HL)

The GranTurismo S Automatic offers two fundamental innovations: the 4.7 litre 440 HP engine, and the automatic 6-speed transmission. The increased engine torque, especially at medium/low rpm, combined with the automatic six-speed transmission, exalts the car’s genuine GT nature. As on the GranTurismo S, the Brembo braking system with front calipers with six pistons delivers even higher performance thanks to the dual-cast technology, where cast iron and aluminium are used together to offer constant performance also under extreme thermal stress. Passenger comfort is further enhanced by the provision as standard of the Skyhook system, with automatic, continual damper adjustment.

Exterior The distinctive features of the GranTurismo S Automatic are the new, larger miniskirts and the new 20” wheels with spokes with their obvious similarity to the Trident logo.

Maserati Academy 10 Maserati Range Technical Updates MY09

Interior

The front seats with sporty trim offer roomy comfort and fully electrical adjustment. The leather upholstery is handmade by ® .

Maserati Academy 11 Maserati Range Technical Updates MY09

1. Engine

Bosch Motronic ME9 Engine Management System (NCM)

The Quattroporte models equipped with 4.7L engine have the new-generation Bosch Motronic ME 9.1.1 engine management system. The basic functional principles are unchanged from the previous Motronic ME7 version of the system. The addition of a number of components to supervise engine management has not involved any changes to their operating principles, which are still the same. The most obvious difference concerns the engine ECU.

The Motronic ME9 ECU is located in the engine compartment, by the left wheel arch. The casing protects the unit from heat and any brake fluid leaks.

Main changes compared to the ME7 system: • the new cast aluminium ECU casing is larger and has new connectors (94 pin car side connector + 60 pin engine side connector) and a new pinout; • new module position inside the engine compartment to reduce wiring lengths; • higher ECU processing capacity thanks to the use of a new, more powerful processor (GreenOak MPC564 64-bit, 56Mhz CPU); • elimination of the diagnostics K-line; diagnostic and programming data exchange is now by means of the C-CAN line, in compliance with the new 15765-4 standard; • immobilizer function controlled by the engine ECU and body computer solely by means of the C-CAN line; the backup W-line has been eliminated; • new hydraulic VVT actuator with range increased to 60 degrees, for smoother engine operation when idling and better torque transmission at low rpm on the new Quattroporte with 4.7L engine; the operating principle is unchanged compared to the existing actuators with range of 50 degrees.

Maserati Academy 12 Maserati Range Technical Updates MY09

60º valve timing control devices:

The F136YG and F136YH engines of the Quattroporte S and Quattroporte Sport GT S are equipped with new valve timing control devices allowing total timing variation of 30º (60º engine actuation).

These new hydraulic VVT actuators with operating range increased to 60 degrees provide smoother idling and higher torque at low rpm. The operating principle is the same as for the 50 degree actuators used previously.

Greater intake/exhaust system aperture for Quattroporte Sport GT S The higher rated power of the Quattroporte Sport GT S (440 HP compared to the 430 HP of the Quattroporte S) is achieved thanks to a modification to the intake and exhaust system, as well as specific engine mapping.

The fact that there is no filter on the debimeter allows the air flow to circulate through the engine more freely. This requires a specific engine management system setup (similar to that of the GranTurismo S).

Maserati Academy 13 Maserati Range Technical Updates MY09

Like the GranTurismo S, the Quattroporte Sport GT S is fitted with a racing exhaust system with bypass valves for the rear silencers. These valves are opened and closed by selecting Sport or Normal mode.

"Normal" Mode - valves closed In “Normal” mode, the special exhaust valves are closed, forcing the exhaust gases to take a longer route before being expelled; this routing reduces the energy level and thus tones down the sound of the engine. However, “Normal” mode, designed to provide the greatest on-board comfort, limits the engine's performance.

"Sport" Mode - valves open In “Sport” mode the valves are open, allowing the exhaust gases to follow a shorter, more direct route; this enables them to leave the system earlier and lets the engine express all its power (440 HP). Selecting “Sport” mode allows the car to perform to full potential.

Maserati Academy 14 Maserati Range Technical Updates MY09

Engine specifications:

M145 (MY09) Range F136 Power Displacement Model Transmission engine [HP] [l] code GranTurismo (M145ML) 405 4.2 automatic UD GranTurismo S (M145HL) 440 4.7 automatic YH GranTurismo S (M145GL) 440 4.7 robotized YE

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Valve lift Crankshaft Valve lift Series Code stroke stroke in Degrees [º] degrees [º] [mm] degrees [º] [mm] [mm] [mm] degrees

F136 YH 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YE 15º after TDC 1.95 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 110 290 470 650

F136 UD 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 115 295 475 655

M139 (MY09) Range F136 Power Displacement Model Transmission engine [HP] [l] code Quattroporte (M139HQ) 400 4.2 automatic UC Quattroporte S (M139IQ) 430 4.7 automatic YG Quattroporte Sport GT S (M139MQ) 440 4.7 automatic YH

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Crankshaft Valve lift Crankshaft Valve lift Series Code stroke stroke in Degrees [º] degrees [º] [mm] degrees [º] [mm] [mm] [mm] degrees

F136 UC 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 115 295 475 655

F136 YG 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YH 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

Maserati Academy 15 Maserati Range Technical Updates MY09

3. Transmission

ZF 6HP26 The new values and the greater power derived from the torque generated by the 4.7L engine are supported by a transmission control software specially developed to optimise acceleration and the gear shift sensation provided by the automatic transmission. The driving experience features: • Excellent acceleration and ideal peak torque distribution • New gear shift sensation between 4th and 5th speeds, peak power available up to the highest engine speeds (7,600 rpm).

"MANUAL" mode: gear keeper • In “MANUAL” mode the driver controls gear shifts directly, and changes are permitted up to the maximum rpm permitted by the rev limiter. • The electronic gear shift indicator on the car’s speedometer, inherited from the GranTurismo S, indicates time to change gear; the gear shift paddles (Active Shifting supplied as standard) behind the steering wheel, with ergonomic “Trofeo” design (also borrowed from the GranTurismo S) always ensure optimal gear changes, especially on routes full of bends.

"AUTO SPORT" mode: "Fast Start" strategy for top performance • To optimise starts from a standstill, the automatic transmission incorporates an innovative “Fast Start" function, which allows the driver to perform controlled starts with no limits on its use (refer to the car’s Manual for further information; this function is not suitable for use on roads, since it requires the MSP function to be deactivated). This function enables the car to surge from 0 to 100 Km/h in just 5.1 seconds, instead of 5.4 seconds.

"MANUAL SPORT"/"AUTO SPORT" mode: downshifting with "double declutch" • The use of the “double declutch” technique when downshifting allows the engine to slow to speeds more suitable for the new gear and, in the case of the Sport GT S, produces awesome sounds from the exhaust that add to the driving thrill. In “SPORT” mode, the transmission helps the driver to use the car in racing style, with very fast gear shift times.

Maserati Academy 16 Maserati Range Technical Updates MY09

7. Safety devices

Air Bag Node (NAB) New Low Risk Deployment Air Bags With effect from 2009, Quattroporte and GranTurismo models are equipped with a new-generation passenger side air bag system featuring an “intelligent” technology called Low Risk Deployment. GranTurismo range cars produced in 2009 may have traditional or LRD air bags. The GranTurismo M145JL model features the dashboard with new passenger air bag, while the GranTurismo M145ML is equipped with the traditional bag. The Low Risk Deployment module is a technical innovation of major importance for passenger safety. In all types of frontal impact, it offers the occupants of the front seat unbeatable protection, regardless of age or stature: both the smallest children, travelling in suitable child seats facing the rear of the car, and adults. Some features of this air bag are designed to enable it to respond appropriately in all circumstances: special apertures reduce the device’s pressure when the bag encounters an obstacle near the dashboard, while the bottom part is shaped to fit the head of a baby in a cradle. The sides are shaped to hold the shoulders, reducing the pressure on the head and chest. The air bag has been completely restyled to ensure that its volume, shape, characteristics and deployment comply with the most severe passenger protection standards without having to adopt the complex advanced weight sensor (AWS) system on the markets where this system is required. The new generation air bags are also more attractive. N.B.: there have been no changes to the other components of the air bag system.

Passenger air bag position

Maserati Academy 17 Maserati Range Technical Updates MY09

8. Electrical systems and functions

Restyling of Florence diagram of Quattroporte 4.2L and 4.7L. There are a number of differences compared to the Florence diagram of the Quattroporte Automatic up until MY08: • elimination of CAF front headlight direction control ECU; • use of master and slave NFA nodes for control of headlights, as on the GranTurismo; • elimination of the NSPE node for the AWS system (USA market) further to adoption of the new LRD air bag; • elimination of the I-CAN line for the TV and mobile phone unit control node; these applications are now integrated in the NIT module (TV only available in combination with optional Bose NIT).

Notes: (*) Not supplied as standard / depends on version. The NCM module K-line is only used for Motronic ME7 systems.

Maserati Academy 18 Maserati Range Technical Updates MY09 iPod connection to NIT:

Cars affected: GranTurismo models with Magneti Marelli NIT, hardware version 8.0 and 8.1. The iPod interface, standard for the USA and Canada markets on the entire M145 range with Magneti Marelli NIT, allows an iPod to be connected to the USB / AUX IN socket in the glove compartment.

iPod connection lead (P/N 251221)

If the NIT has a USB charger dock: The iPod cannot be controlled by means of the NIT; its own controls have to be used. The AUX IN socket receives the analogue audio signal while the USB dock is only used to supply the device with power. If the NIT has a “USB Full” dock (for HW 8.0 and HW 8.1 NITs only): In this case the iPod can be controlled using the controls of the NIT (Compatibility may be only partial, depending on the iPod version).

Important note: for this function to be enabled, the NIT must comply with the following conditions:

1.Software version BR2 or later

2.Function enabled in the car’s Proxi (using the Proxi configuration procedure)

Proxi configuration: • 034 – Magneti Marelli iPod NIT • 042 – Magneti Marelli iPod NIT removal (opposite of function no. 034): this Proxi configuration eliminates the setting of the (optional) iPod connection for the car’s InfoTainment system (N.B: if the user wishes to remove the iPod function, he can also do this by simply disconnecting the iPod connection lead).

Maserati Academy 19 Maserati Range Technical Updates MY10

0. General information

2010 range:

The GranCabrio, the third tine of the Maserati Trident, joined the range in 2010. The GranCabrio, launched at the Frankfurt Motor Show on 15 September 2009, completed the Maserati range, with three separate families of models: Quattroporte, GranTurismo, GranCabrio - in other words: saloon, coupe and convertible. The GranCabrio is the first Maserati convertible to seat four in comfort. A major step forward in engine management was achieved by introducing the Bosch Motronic ME9.1.1 engine management system, first used on the Quattroporte S in 2008. The new INA valve timing control devices went into production on the entire range of engines (4.2 L and 4.7 L).

The 2010 range comprises the models listed below: GranTurismo (M145) Range • GranTurismo (M145NL) • GranTurismo S (M145GL) Robotized • GranTurismo S (M145HL) Automatic • GranCabrio (GranTurismo Convertible) (M145BD)NEW

Quattroporte (M139) Range • Quattroporte (M139OQ) • Quattroporte S (M139IQ) • Quattroporte SPORT GTS (M139MQ)

Maserati Academy 20 Maserati Range Technical Updates MY10

GranCabrio (GranTurismo Convertible) (M145BD)

The GranCabrio (better known on some markets as the GranTurismo Convertible) started an important new chapter in Maserati’s history. This Maserati is different from all those which went before it. The name, GranCabrio, recalls the famous Maserati tradition and experience, while also linking the new car to the GranTurismo concept and re-evoking the GranSport cars of the past. At the same time, the name underlines how much this car differs from all previous models. The GranCabrio redefines the idea of the “cabriolet” or convertible. This four-seater convertible is the natural completion of the Maserati range: customers in search of outstanding performance combined with luxury and genuine Italian style can now choose between a four-door saloon, a genuine GranTurismo coupe and the pleasure of driving with the wind in their hair in an elegant convertible. The GranCabrio has the same technical profile as the GranTurismo S Automatic. It shares the same platform and the is identical to that of its twin model. Under the bonnet there is the same wet sump 4.7L engine, capable of delivering a power of 440 HP. The Maserati GranCabrio is equipped with six-speed ZF automatic transmission and a hydraulic that guarantees smooth gear shifts, while also maintaining the characteristics of the sporty V8 engine. It is fitted with Skyhook electronic suspension control system as standard. This system features dampers with aluminium body with constant adjustment of the damping effect. This solution adapts the car’s attitude to driving style and road conditions instantly, for a ride of unbeatable comfort.

Maserati Academy 21 Maserati Range Technical Updates MY10

Exterior Styled by the great master Pininfarina, the GranCabrio has a canvas top, a styling feature that links the car firmly to the Maserati tradition of refinement.

With the top on, the non-existent rear upright is simulated by the elegant forward- sloping design, which gives the GranCabrio the look of an elegant coupe. Once the top is down, the Maserati GranCabrio is transformed into a stunning convertible, a paragon of feline power and grace. The dynamism of the side view is accentuated by the car’s low ground clearance and a long bonnet with an elegant “V” profile leading the eye forward to the radiator grille with a large chromed Trident in its centre. The sides also feature chromed trims, giving the GranCabrio’s appearance an added gleam. One particularly attractive touch is the continuous chromed profile which runs around the edge of the cabin and incorporates the third brake light. The GranCabrio’s shape is the outcome of lengthy aerodynamic tests performed to reduce the resistance typical of open-topped cars. The GranCabrio’s Cx coefficient is amongst the best in its category: 0.35 with the top up and 0.39 with it down. The spoiler and rear cone both help to generate the highest possible downforce.

Interior

The Maserati GranCabrio is the only true convertible in its class capable of seating four adults in comfort, in an elegant, luxurious interior. The amount of space in the cabin is far above average, and assures outstanding comfort even for rear seat passengers.

Maserati Academy 22 Maserati Range Technical Updates MY10

The GranCabrio’s interior is attractive to look at and to touch. It has been created using the very finest materials: the leather is hand-crafted by Poltrona Frau® and the dashboard, door panel and side panels are in the choicest types of wood. The craftsmanship and attention to detail are also clear in the chromed rings around the dashboard buttons and steering wheel, not to mention the Alcantara finishes on the area of the gear shift panels on the steering wheel. The on-board comfort level is also increased by the canvas soft-top, in three layers for excellent soundproofing. With the top down and only two passengers on board, air flows through the interior can be minimised with the aid of the windstop, specially designed for the GranCabrio (available on request). On the Maserati GranCabrio the climate control system has been developed to guarantee the maximum comfort, whether the top is up or down. The system automatically recognises the mode in which the car is being used, and reprogrammes its emissions mixed with air to maintain the set temperature.

N.B.: For a full account of all the car’s technical features, the soft-top construction type, the important innovative systems and passive and active safety components, reference should be made to the “Maserati GranCabrio” manual.

Maserati Academy 23 Maserati Range Technical Updates MY10

1. Engine

Bosch Motronic ME9 Engine Management System (NCM) With effect from MY10 the Bosch Motronic ME9.1.1 engine management system (first introduced on the Quattroporte S M139IQ) is also used on 4.2 litre engines. The basic operating principles are unchanged from the Motronic ME7 system; the various engine management components are changed but they still function on the same principle. The main difference relates to the ECU itself.

The Motronic ME9 ECU is located in the engine compartment, behind the left wheel arch. A screen is installed to protect the ECU from heat and any brake fluid leaks.

N.B.: For more information about the Bosch Motronic ME9.1.1 engine management system, refer to the “Advanced Electronics 1” manual. For details of the main changes compared to the ME7 system, see point “1 Engine” in the MY09 section.

Maserati Academy 24 Maserati Range Technical Updates MY10

"INA" valve timing control devices

The new INA valve timing control devices were introduced on the entire Maserati range with effect from engine number 150070 (4.2 L: September 2009, and 4.7 L: 2010). The relative hydraulic circuit was also improved.

When replacing the component, proceed as shown when tightening:

• Lubricate the thread of the M14 screw with engine oil • Tighten to 50 Nm + 70º

Maserati Academy 25 Maserati Range Technical Updates MY10

Engine specifications:

M145 (MY10) Range F136 Power Displacement Model Transmission engine [HP] [l] code GranTurismo (M145NL) 405 4.2 automatic UF GranTurismo S (M145HL) 440 4.7 automatic YH GranCabrio (GranTurismo Convertible) 440 4.7 automatic YI (M145BD) GranTurismo S (M145GL) 440 4.7 robotized YE

Engine VVT F136 YE intake valve timing control device (50º operation) F136 YH intake valve timing control device (60º operation) F136 YI intake valve timing control device (60º operation) F136 UF intake valve timing control device (50º operation)

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Crankshaft Valve lift Crankshaft Valve lift Series Code stroke stroke in Degrees [º] degrees [º] [mm] degrees [º] [mm] [mm] [mm] degrees

F136 YH 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YI 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YE 15º after TDC 1.95 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 110 290 470 650

F136 UF 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 125 305 485 665

Maserati Academy 26 Maserati Range Technical Updates MY10

Engine specifications (continued):

M139 (MY10) Range F136 Power Displacement Model Transmission engine [HP] [l] code Quattroporte (M139OQ) 400 4.2 automatic UE Quattroporte S (M139IQ) 430 4.7 automatic YG Quattroporte Sport GT S (M139MQ) 440 4.7 automatic YH

Engine VVT F136 YG intake valve timing control device (60º operation) F136 YH intake valve timing control device (60º operation) F136 UE intake valve timing control device (50º operation)

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Crankshaft Valve lift Crankshaft Valve lift Series Code stroke stroke in Degrees [º] degrees [º] [mm] degrees [º] [mm] [mm] [mm] degrees

F136 UE 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 125 305 485 665

F136 YG 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YH 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

Maserati Academy 27 Maserati Range Technical Updates MY10

8. Electrical systems and functions

Magneti Marelli NIT TMC Traffic Message Channel on Magneti Marelli NIT With effect from MY10, the TMC Premium (Traffic Message Channel) service is available on all GranTurismo and Quattroporte cars fitted with Magneti Marelli NIT. This service allows drivers to receive information about road conditions, such as traffic conditions, weather, accidents, etc., directly on their navigators. The service is standard and available only for the following markets: , France, UK, Germany.

iPod connection to Magneti Marelli NIT:

Cars affected: The IPod interface is standard for the USA and Canada markets on the entire M139 and M145 range with Magneti Marelli NIT. On the other markets, the interface is available as an optional.

With effect from MY10 an iPod can be connected to the Magneti Marelli NIT on the entire Maserati range. The connection can be made by means of the iPod connection lead, available as a Maserati spare part, connecting an iPod to the USB / AUX IN provided in the glove compartment.

iPod connection lead (P/N 251221)

Maserati Academy 28 Maserati Range Technical Updates MY10

If the NIT has a USB charger dock: The iPod cannot be controlled by means of the NIT; its own controls have to be used. The AUX IN socket receives the analogue audio signal while the USB dock is only used to supply the device with power.

If the NIT has a “USB Full” dock (for HW 8.0 and HW 8.1 NITs only): In this case the iPod can be controlled using the controls of the NIT. (Compatibility may be only partial, depending on the iPod version).

Important note: for this function to be enabled, the NIT must comply with the following conditions:

1. Software version BR2 or later 2. Function enabled in the car’s Proxi (using the Proxi configuration procedure)

Proxi configuration: • 034 – Magneti Marelli iPod NIT • 042 – Magneti Marelli iPod NIT removal (opposite of function no. 034): this Proxi configuration eliminates the setting of the (optional) iPod connection for the car’s InfoTainment system (N.B: if the user wishes to remove the iPod function, he also do so by simply disconnecting the iPod connection lead).

Maserati Academy 29 Maserati Range Technical Updates MY10

Solar sensor A new solar sensor was introduced on the entire range (M139 and M145). The solar sensor calculates the thermal energy generated by the sunlight received. It is installed on the dashboard, close to the windscreen. The sensor is of DUAL ZONE type for optimal temperature control with the dual climate control system.

Old solar sensor P/N 190938 New solar sensor P/N 257523

With effect from assembly 51497 (GranTurismo) and 51503 (Quattroporte) the solar sensor changed (to 4 pin instead of 3) and it is now combined with a new climate control ECU with an updated dedicated software programme.

Maserati Academy 30 Maserati Range Technical Updates MY11

0. General information

2011 range:

The new GranTurismo MC Stradale (M145OL) and the Quattroporte Sport GTS Awards Edition (M139PQ) special edition joined the range in 2011. The GranTurismo MC Stradale became the fastest, lightest and most powerful car in the Maserati range, inspired by the experience of the Maserati Corse racing team in the and FIA GT4 championship. The Quattroporte Sport GTS Awards Edition, born to celebrate the no less than fifty-six awards won by the Maserati Quattroporte in just six years since its launch, was based on the Quattroporte Sport GT S, with the aim of combining all the characteristics that had made the Maserati flagship such a benchmark in the segment in a single car. An important safety upgrade was introduced across the entire range, with the second generation TPMS system.

GranTurismo (M145) Range • GranTurismo (M145NL) • GranTurismo S (M145LL) Robotized • GranTurismo S (M145HL) Automatic • GranTurismo MC Stradale (M145OL)  NEW • GranCabrio (GranTurismo Convertible) (M145BD)

Quattroporte (M139) Range • Quattroporte (M139OQ) • Quattroporte S (M139IQ) • Quattroporte SPORT GTS (M139MQ) • Quattroporte Sport GTS Awards Edition (M139PQ)  NEW

Maserati Academy 31 Maserati Range Technical Updates MY11

GranTurismo MC Stradale (M145OL)

In 2011 Maserati drew on the excellent performance of the GranTurismo S and the experience gained on the racetracks with the Trofeo and GT4 to launch the GranTurismo MC Stradale. This model made full use of the experience of the Maserati Corse racing team, as its name clearly indicates. It therefore became the link between the road car range and the racing sector, and is the perfect example of Maserati’s ability to develop a product equally suited to the road and the racing circuit. The GranTurismo MC Stradale weighs an impressive 110 kg less than the GranTurismo, with an overall weight of 1,770 kg. This characteristic reflects the benefits of the Maserati cars in the racing range, maintaining optimal weight distribution (48% front, 52% rear), to guarantee balanced handling and even tyre wear.

With 331 kW, the 4.7 litre V8 engine gives the car higher power (450 HP against 440) than the GranTurismo S, while the 510 Nm of torque is also an improvement of 20 Nm. These characteristics help to cut acceleration times from 0 to 100 km/h, which the Maserati GranTurismo MC Stradale achieves in just 4.6 seconds, and increasing the to speed to 301 km/h. The state-of-the-art electronics on board drastically reduce the gear shifting times of the new MC Race robotized transmission to just 60 milliseconds. It was the first Maserati in history to have a dedicated Race mode, combined with the upgrades of the Auto and Sport modes, with a simplified control layout on the dashboard.

Maserati Academy 32 Maserati Range Technical Updates MY11

Exterior

The MC Stradale’s front miniskirts, air intakes and spoilers are larger than those of the GranTurismo. Experience on the race track and fluid dynamic research have led to the development of package with greater aerodynamic efficiency. In particular, the front spoiler, side miniskirts and slots in the front fenders combine to push the front of the car down at high speeds, cool the brakes, extract hot air from the brake circuits as well as delivering downforce to the entire car. Overall, the MC Stradale is 48 mm longer than the GranTurismo and is 10 mm closer to the ground at the front and 12 mm at the rear, generating a 25% increase in front and 50% in rear downforce at 200 km/h.

Interior

Maserati Academy 33 Maserati Range Technical Updates MY11

The MC Stradale became the only two-seater in the current Maserati range; the rear seats were eliminated to save weight. The front seats are extremely lightweight and comfortable, with carbon fibre shell, high- tech upholstery and the Trident logo stitched on the headrest. Their body-hugging shape provides the torso and legs with perfect support during high-speed cornering on the race track, as well as all the comfort needed for long road journeys. They can be adjusted by hand to move the base backwards or forwards and tilt the back. They can also have three different heights, set on request.

N.B.: For a general view of all the car’s technical features and the information needed for diagnostics and the performance of service and repairs on the car, reference should be made to the ”Technical Presentation: GranTurismo MC Stradale” manual, 2011 edition.

Maserati Academy 34 Maserati Range Technical Updates MY11

Quattroporte Sport GTS Awards Edition (M139PQ)

The special “Awards Edition”, based on the Quattroporte Sport GT S, aimed to combine all the characteristics that have made the Maserati flagship such a benchmark in the segment in a single car: • the unique, elegant style, mixed with a touch of racing verve thanks to the distinctive external and internal fittings; • driving enjoyment, because the Quattroporte “Awards Edition” is based on the Quattroporte Sport GT S, a car with top-class handling and performance; • hand-crafted details that make every car a one-off.

Exterior

It is immediately recognisable from the outside thanks to the new “Quarzo fuso” finish, an exclusive for this model. The burnished finish of the chromed external parts, the side air intakes and the radiator surround, match the 20” Multi Trident wheels in satin-finish dark grey.

Maserati Academy 35 Maserati Range Technical Updates MY11

The dual cast braking system, similar to that of the Quattroporte Sport GT S, is given added lustre by the hand-polishing of both the front and the rear calipers. With the Quattroporte Sport GT S “Awards Edition”, for the first time Maserati and Brembo offered the market a precision-engineered polished brake caliper, half-finished to a mirror-like shine which also highlights its racing connotations. A special “Awards Edition” badge features on the car’s exterior.

Interior

The interior also reflects the Maserati flagship’s famed combination of racing élan and craftsmanship. The Poltrona Frau® leather of the seats is used alongside perforated Alcantara with a new wave pattern. The roof lining is also in Alcantara. The interior is completed by the special brushed aluminium underdoor moulding covers and the satin finish Piano Black wooden mouldings. The black-lined boot is ornamented with chromed details and also has a leather side pocket. The attention to details even reaches to the mats, in an even richer, softer material.

Maserati Academy 36 Maserati Range Technical Updates MY11

1. Engine

The improvements introduced in the MY11 range related to the new engine of the GranTurismo MC Stradale, the F136YK, derived from the F136 YE version. This V8 engine with displacement of 4.7 L has power of 331 kW at 7,000 rpm (10 horsepower more than the GranTurismo S); the torque curve is even more accentuated at low rpm and the maximum torque is 510 Nm at 4,750 rpm (20 Nm higher than the GranTurismo). The majority of the improvements derived from the “Low Friction Program” which redesigned the fluid dynamics of the oil sump and the DLC (Diamond-Like Coating) finish of the hydraulic tappets and camshaft lobes. This improved the engine’s power and consumption efficiency, thus reducing its emissions.

F136YK Engine Technical Data

Displacement: 4,691 cc Bore and Stroke 94 mm x 84.5 mm Compression ratio: 11.25:1 Maximum power: 331 kW (450 HP) at 7,000 rpm Maximum torque: 510 Nm at 4,750 rpm Maximum rpm: 7,500 rpm

Maserati Academy 37 Maserati Range Technical Updates MY11

Specific engine components for F136 YK

• Camshafts with special surface “Tribofinishing”; • Crankshaft with special surface “Tribofinishing”; • Specific connecting-rods with modified seats for new big end bearings and new small end bushing; • Special lead-free big-end bearings; • Pistons with phosphating surface treatment on skirt and special piston rings; • Oil pump with higher pressure setting increased by 0.5 bar; • Modified engine block with special reed valves.

The most noticeable, highest-impact change is the reduction in internal friction due to the development of a system of reed valves in the engine block which simulate the system even though no recovery pump is installed. The four reed valves return the excess oil to the upper area where the crankshaft operates. The pressure balancing achieved simulates a dry sump effect.

F136 standard wet sump version F136 YK version

Maserati Academy 38 Maserati Range Technical Updates MY11

Cross-section of the engine block: the four reed valves return the excess oil to the upper area where the crankshaft operates. The pressure balancing achieved simulates a dry sump effect.

Maserati Academy 39 Maserati Range Technical Updates MY11

Engine specifications:

M145 (MY11) Range F136 Power Displacement Model Transmission engine [HP] [l] code GranTurismo (M145NL) 405 4.2 automatic UF GranTurismo S (M145HL) 440 4.7 automatic YI GranCabrio (GranTurismo Convertible) 440 4.7 automatic YI (M145BD) GranTurismo S (M145LL) 440 4.7 robotized YE GranTurismo MC Stradale (M145OL) 450 4.7 robotized YK (*)

Engine Tappets (*) : engine block with reed valves F136 YK hydraulic tappets with DLC finish F136 YE standard hydraulic tappets F136 YI standard hydraulic tappets F136 UF standard hydraulic tappets

Engine VVT F136 YK intake valve timing control device (50º operation) F136 YE intake valve timing control device (50º operation) F136 YI intake valve timing control device (60º operation) F136 UF intake valve timing control device (50º operation)

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Crankshaft Valve lift Crankshaft Valve lift Series Code stroke stroke in Degrees [º] degrees [º] [mm] degrees [º] [mm] [mm] [mm] degrees

F136 YE 15º after TDC 1.95 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 110 290 470 650

F136 YI 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 UF 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 125 305 485 665

F136 YK 15º after TDC 1.95 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 110 290 470 650

Maserati Academy 40 Maserati Range Technical Updates MY11

Engine specifications:

Quattroporte (M139) range (MY11) F136 Power Displacement Model Transmission engine [HP] [l] code Quattroporte (M139OQ) 400 4.2 automatic UE Quattroporte S (M139IQ) 430 4.7 automatic YG Quattroporte Sport GT S (M139MQ) 440 4.7 automatic YH Quattroporte Sport GT S 440 4.7 automatic YH Awards Edition (M139PQ)

Engine Tappets F136 YG standard hydraulic tappets F136 YH standard hydraulic tappets (*) : engine block with reed valves F136 UE standard hydraulic tappets

Engine VVT F136 YG intake valve timing control device (60º operation) F136 YH intake valve timing control device (60º operation) F136 UE intake valve timing control device (50º operation)

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Crankshaft Crankshaft Valve lift Series Code stroke Valve lift [mm] stroke in Degrees [º] degrees [º] degrees [º] [mm] [mm] [mm] degrees

F136 YG 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YH 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 UE 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 125 305 485 665

Maserati Academy 41 Maserati Range Technical Updates MY11

Cooling fan circuit:

Improvement to fan power supply circuit.

Old electric system diagram: If the resistor Q004 malfunctions, the cooling fan first speed is not available.

New electric system diagram: If the resistor Q004 malfunctions, the left- hand side engine cooling fan (first speed) still operates thanks to relay T15.

Maserati Academy 42 Maserati Range Technical Updates MY11

4. Braking system

Stability and Traction Control (NFR) Systems

A new function of the ESP system, known as HBA or Hydraulic Brake Assist, was introduced on the Quattroporte range.

The purpose of the HBA function is: • To increase the braking pressure when the brake pedal is pressed quickly but not hard enough • Reduce braking distances

Input signals: • Main pressure sensor • Wheel speed sensors • Brake light switch

Output signals: Braking pressure increase

Maserati Academy 43 Maserati Range Technical Updates MY11

5. Steering controls

Power Steering Pump

Cars affected: Quattroporte, GranTurismo, GranCabrio, 8C. With effect from assembly no. 57976 a new power steering pump went into production for smoother handling with the car stationary and with the engine idling. A new high pressure hose from the pump to the steering box was introduced from assembly no. 62682.

• New POWER STEERING PUMP P\N 263369 (was P\N 255278) Ref. 6 (see diagram) • New HIGH PRESSURE HOSE FROM PUMP TO STEERING BOX: - LH drive P\N 277612 (was P\N 267180 was 227560) – Ref. 13 (see diagram) - RH drive P\N 267181 (was P\N 210379) – Ref. 13

WARNING: if necessary, order the parts listed above, complying with the instructions proved below, depending on the car’s Assembly number.

From start of production to Assembly no. 57975 • In the event of replacement of the power steering pump only, the power steering pump and hose from pump to steering box will have to be replaced, ordering the following kit:

- LH drive: KIT no. 980145407 (comprising: new power steering pump P\N 263369, new high pressure hose from pump to steering box P\N 277612, Power steering hose fixing bracket P\N 277525, M6 nut with washer P\N 14040614, Spring P\N 242248 Q.ty 3).

Maserati Academy 44 Maserati Range Technical Updates MY11

- RH drive: KIT no. 980145382 (comprising: new power steering pump P\N 263369 and new high pressures hose from pump to steering box P\N 267181).

• In the event of replacement of the hose from the pump to the steering box only, the following components will have to be ordered:

- LH drive: P\N 227560 (pre-modification high pressure hose from pump to steering box). - RH drive: P\N 210379 (pre-modification high pressure hose from pump to steering box).

From Assembly no. 57976 to Assembly 62681 • In the event of replacement of the power steering pump only, the power steering pump only will have to be replaced, ordering the following component:

- LH / RH drive: P\N 263369 (new power steering pump).

• In the event of replacement of the hose from the pump to the steering box only, the following components will have to be ordered:

- LH drive: KIT no. 980145408 (comprising: new high pressure hose from pump to steering box P\N 277612, Power steering hose fixing bracket P\N 277525, M6 nut with washer P\N 14040614, Spring P\N 242248 Q.ty 3).

- RH drive: P\N 267181 (new high pressure hose from pump to steering box).

From Assembly no. 62682 onward • If necessary, the various components can be replaced individually, using the new P/N (power steering pump P\N 263369; high pressure hose from pump to steering box for LH drive P\N 277612, Power steering hose fixing bracket P\N 277525, M6 nut with washer P\N 14040614, Spring 242248; high pressure hose from pump to steering box for RH drive P/N 267181).

N.B.: For more information about the components installed and the new high-pressure hose installation layout, refer to “Technical Information Bulletin - PPD 09/2011”

Maserati Academy 45 Maserati Range Technical Updates MY11

7. Safety devices

Tyre Pressure Monitoring System (NTP)

Foreword The European Commission has ruled that all new cars introduced onto the market with effect from 2012 and new cars put on sale from 2014 must be fitted with a TPMS as standard. The first legislation making the installation of a TPMS on all new cars put on sale compulsory was introduced in the United States, from 2008. In Europe, safety reasons have been reinforced by environmental considerations, a fundamental factor in the decision to make TPMS compulsory. In association with its supplier Beru, Maserati has had a TPMS system for years. The system measures the pressure of all four tyres in real time and alerts the driver in the event of a drop in pressure. This system was now introduced in a new version (TPMS 2.5), intended to improve its efficacy and reliability; the differences compared to the previous version (TPMS 1.5) will be illustrated below.

Cars affected M139 and M145 as an optional until the legislation comes fully into effect (already standard on USA, Canada and Japan versions and for some market specifications).

Quattroporte TPMS 1.5: Valid Assembly Number Range 27860 - 57699 Quattroporte TPMS 2.5 : With effect from Assembly Number 57700 GranTurismo TPMS 1.5: up to Assembly Number 55703 GranTurismo TPMS 2.5 : With effect from Assembly Number 55704 GranCabrio TPMS 1.5: up to Assembly Number 55363 GranTurismo TPMS 2.5 : With effect from Assembly Number 55364

Maserati Academy 46 Maserati Range Technical Updates MY11

Position in the car In all cars (Quattroporte, GranTurismo and GranCabrio) the new NTP control unit is in the same position as the previous version, on the floor, on the left in LH drive and right in RH drive cars. It can be accessed by removing the floor finishing panel in front of the driving seat.

System components: 1. Right front trigger 2. Rear antenna 3. Right rear trigger 4. Left rear trigger 5. Tyre Pressure Node (NTP) 6. Left front trigger 7. Pressure sensor (total of 4, one for each wheel) 8. Front antenna

Left front TRIGGER Left rear TRIGGER on Quattroporte on Quattroporte

Left rear Right rear TRIGGER TRIGGER and ANTENNA

Maserati Academy 47 Maserati Range Technical Updates MY11

Data communication The NTP is connected to the B-can line for data exchange with other nodes for diagnostic communication. The NTP uses a dedicated LIN line to receive data from the wheel antennas.

Description of the system

The second generation TPMS consists of the following components: • NTP ECU (version 2.5) • 4 wheel ECUs, integrated in the wheel valves (specific sensors Gen 2.3) • 4 Triggers • 2 digital antennas • TPMS warning light

The second generation has new digital antennas and new wheel sensor, while the transmission frequency is unchanged at 433MHz (315MHz for the Japanese market).

The second generation TPMS ECU has the same shape and size as the old version, but the connector and PIN OUT are different.

TPMS 2.5 TPMS 1.5

Operation: The new system has two antennas, in the left front and right rear of the car respectively. The two antenna system improved signal reception performance, meaning that a new ECU, capable of managing two antennas and four triggers, had to be introduced. The new system functions by a different method from the previous generation. The system uses a Trigger installed in each wheel arch, which polls the pressure sensor in the valve when the vehicle is at a standstill. When the car is on the move, the system enables the pressure sensor to switch to automatic data transmission mode, and the data are transmitted every 3 seconds. If the system detects that the data from a specific sensor have been lost, it uses the wheel’s trigger to poll the sensor and force it to transmit data.

Maserati Academy 48 Maserati Range Technical Updates MY11

Electric system diagram

Description The NTP receives power at +15 (controlled by the ignition key). The sensors mounted inside the wheel rims, next to the tyre inflation valve, monitor the tyre pressure (they also monitor the temperature value, not shown on the display). The NTP acquires the tyre pressure and temperature data from the two wheel antennas fitted in the front left and rear right wheel arches. The antennas receive this information from the wheel ECU by means of radio waves (RF transmission). Each wheel ECU, incorporated in the tyre valve, has an ID code, which is transmitted together with the temperature and the pressure data. This means that each tyre is monitored separately. The ECU acquires the tyre status, processes the data and sends a series of data about the tyre pressure status and any system errors to the on-board control panel by means of the B-CAN line. The NTP also receives the following information on the B-CAN line: • Acquisition of the calibration command acceptance signal from the B-CAN network; • Car speed (from NBC); • Engine rpm (from NBC); Instrument panel node (NQS): • It acquires the signals on the B-CAN network and processes the tyre pressure status data; • It controls the calibration command by means of the specific menu and transmits the signal on the network; • It acquires the calibration command acceptance signal from the B-CAN network.

Maserati Academy 49 Maserati Range Technical Updates MY11

Operation: Once the calibration procedure has been requested (see System calibration), if the system has received data from all the wheel sensors in that ignition cycle and all the pressures detected are above 0.6 [bar], the NTP starts the calibration procedure. If any of the tyres has a pressure of less than 0.6 bar, calibration is not permitted. The system takes the maximum pressure of each as the rated pressure and calculates the Soft Warning and Hard Warning threshold pressure for each axle using the following formulae:

• Soft Warning threshold = rated pressure - 0.3 [bar] • Hard Warning threshold = 75% of rated pressure

N.B.: It is fundamental to bear in mind that the pressure considered for calculating the Soft and Hard Warning thresholds is the Absolute Pressure and not the manometric pressure. Absolute Pressure = Manometric pressure + Atmospheric pressure (e.g. Absolute P. (3.3 bar) = Manometric P. (2.3 bar) + Atmospheric P. (1 bar) ).

The TPMS will warn the driver if any of the following conditions occurs: • Soft Warning: The Soft Warning alert message is activated as soon as one of the tyre pressures drops below the Soft Warning threshold. • Hard Warning: The Hard Warning alert message is activated as soon as one of the tyre pressures rises above the Hard Warning threshold. • Rapid loss of pressure: If the pressure of a tyre falls at a rate of more than 0.35 [bar/min] the Hard Warning alert message is activated. • Run Flat Warning: The Hard Warning alert message is activated as soon as one of the tyre pressures falls below 0.6 [bar]. • Over Temperature Warning: if the temperature measured by a wheel sensor exceeds 105ºC (221ºF) the system will activate the over temperature warning, which will disappear as soon as the temperature reading returns to 100ºC (212ºF) or less. • Change in wheel position: If the system detects that even just one of the wheel sensors has changed its position since the last ignition cycle (if the position of a wheel has changed), the TPMS will ask the driver to recalibrate the system. This enables the TPMS to recalculate the alarm thresholds.

Maserati Academy 50 Maserati Range Technical Updates MY11

Reset conditions: The Soft/Hard Warning alert is deactivated when the pressure reading obtained by the wheel sensor that activated the alert message exceeds the Soft/Hard Warning threshold. A Hard Warning alert triggered by a rapid drop in pressure is deactivated at the next ignition cycle if the conditions which activated the alarm no longer apply. The Run Flat Warning alert is deactivated when the pressure reading obtained by the wheel sensor that activated the alert message exceeds the Run Flat Warning threshold.

Calibrating the system: The system requires calibration after: • replacement of one or more tyres; • swapping of wheels; • if uncertain whether at least one of the above has been performed. There is no need for recalibration if a tyre has simply been topped up to the correct pressure. To calibrate the system, select the “TPMS Calibration” screen on the multifunction display by pressing the “MODE” key A. Then hold down the “+” B key to start calibration.

This operation can be carried out with the key turned to MAR and the engine off. The system will take a few seconds to complete the process, during which the display shows the green symbol and the message “Calibration activated”. If the informative screen showing the pressure values of each tyre is recalled, dashes “--.--“ will appear instead of the values.

Maserati Academy 51 Maserati Range Technical Updates MY11

Interference may cause problems in TPMS calibration if it is carried out in a zone with large amounts of RF radiation. In case of difficulties with calibration, try performing the procedure on the open road, outside the town centre.

TPMS 2.5 system wheel ECUs are not interchangeable with first generation (TPMS 1.5) wheel ECUs.

N.B.: For further information about the Tyre Pressure Monitoring System (NTP), refer to the “Advanced Electronics 2” manual.

Maserati Academy 52 Maserati Range Technical Updates MY11

8. Electrical systems and functions

Head liner Node (NIM)

Description There have been SW upgrades to the Head liner Node (NIM) ECU on both the Quattroporte and the GranTurismo. The upgrade was necessary across the entire range because the new TPMS (2.5) does not require the dedicated TPMS calibration key (the first generation TPMS had a calibration key on the light fitting in the middle of the roof, connected to the NIM node wiring). In addition, the description of the operating mode of the analogue clock was modified on the Quattroporte range, to bring it into line with the clock’s real mode of operation.

Quattroporte (M139) NIM Prior to TPMS2.5 Valid for TPMS 2.5 BASIC NIM 244798 272851 OPT NIM* 244797 272850

(*): Front seat Comfort Pack, rear seat Comfort Pack, heated front seats, heated rear seats

The Part Number of the NIM (P/N: 259583) does not change on the GranTurismo range since this type is already fitted. On the GranCabrio (GranTurismo Convertible), the NIM is only installed with the “Comfort Pack”.

Maserati Academy 53 Maserati Range Technical Updates MY12

0. General information

2012 range: The new GranTurismo MC (M145PL), the GranCabrio Sport (M145DD) and the limited- edition GranCabrio Fendi (M145BD) were added to the Maserati MY12 range. Stylistically, the GranTurismo MC retained the look of the GranTurismo MC Stradale launched in 2011. This car, intended for the USA and Canada markets, has a 450 HP V8 engine and 6 speed ZF automatic transmission. The GranCabrio Sport extended an important chapter in Maserati’s history, that of the convertible able to seat four in comfort. It stands alongside the GranCabrio, of which it is an even more dynamic, sports-car version. The new 4.7 L V8 engine delivers a power of 450 HP. The GranCabrio Fendi, launched in Frankfurt in 2012, was created in association with the Fendi fashion house, and is definitely a car which makes elegance and style its trademark.

The 2012 range comprises the models listed below:

GranTurismo (M145) Range: • GranTurismo (M145NL) • GranTurismo S (M145LL) Robotized • GranTurismo S (M145HL) Automatic • GranTurismo MC Stradale* (M145OL) • GranTurismo MC Auto (M145PL)  NEW • GranCabrio (GranTurismo Convertible) (M145BD) • GranCabrio (GranTurismo Convertible) Sport (M145DD)  NEW • GranCabrio Fendi (M145BD)  NEW

Quattroporte (M139) Range: • Quattroporte 4.2 (M139OQ) • Quattroporte 4.7 (M139IQ) • Quattroporte SPORT GTS (M139MQ) • Quattroporte Sport GTS Awards Edition (M139PQ)

(*) No significant changes have been made to the MC Stradale MY12. The only modifications relate to the exterior colour and new optional interiors. For purchasers of the GranTurismo MC Stradale MY12 who do not want the 4 racing harnesses, Maserati offers the option of ordering the roll bar with 3 point safety belt.

Maserati Academy 54 Maserati Range Technical Updates MY12

GranTurismo MC (M145PL) USA and Canada markets

The unique style of the new Maserati GranTurismo MC MY12 is inherited from the family to which the GranTurismo range belongs. The GranTurismo MC raises the GranTurismo S to an even higher level; this sports version of the coupe, designed by Pininfarina and powered by a V8 4.7L engine, is the epitome of exclusiveness and performance. Stylistically, the GranTurismo MC reproduces the look of the GranTurismo MC Stradale. This car, intended for the USA and Canada markets, has a V8 engine that generates 450 HP at 7,000 rpm and 510 Nm of torque at 4,750 rpm. The ZF 6 speed automatic transmission has MC Auto Shift: rev limiter gear keeper, double declutch, launch control, digital rpm counter, sporty accelerator map and valve opening control software in Sport mode. Suspensions with single racing setup are supplied as standard, with Skyhook version on request.

Exterior

The exterior of the GranTurismo MC retains the sporty style of the GranTurismo MC Stradale (bumpers, miniskirts, silencers and wheels).

Maserati Academy 55 Maserati Range Technical Updates MY12

Interior

The seats are upholstered in fine Poltrona Frau® Italian leather and the combination of leather and Alcantara used for the interior finishes also helps to restyle the dashboard. The front seats provide excellent support in all driving conditions while the rear seats allow four adults to be transported in comfort. The general style of the dashboard is very different from that of the GranTurismo S: in keeping with the car’s more sporty concept, the luxury chromed trims have been replaced with a more streamlined look in black. Alcantara is used on the central console, the central armrest, the door panel armrests, the handles and the dashboard.

Maserati Academy 56 Maserati Range Technical Updates MY12

GranCabrio (GranTurismo Convertible) Sport (M145DD)

The GranCabrio Sport, introduced in MY12, extends an important chapter in Maserati’s history, that of the convertible able to seat four in comfort, with docile, smooth power always ready to respond, with an unmistakable style combined with an unrivalled elegance. Alongside the elegant, already high-performing GranCabrio, first introduced in MY10, the launch of an even more sporty, dynamic version is typical of our marque’s philosophy. The GranCabrio and GranCabrio Sport are similar in soul but with different details. The throbbing heart of the GranCabrio Sport delivers 450 HP thanks to a series of innovations to improve its operation. It was designed with important innovations to reduce friction, such as the use of DLC (Diamond-Like Coating) for the tappets and camshaft loads. The 6 speed ZF automatic transmission has MC Auto Shift: rev limiter gear keeper, double declutch, launch control, digital rpm counter and sporty accelerator map. The GranCabrio Sport’s outstanding performance is achieved thanks to a series of special design features introduced on this model. The car’s standard outfit includes Skyhook suspensions with dampers with continual variation of the damping effect, with a special setup for this version. There was a major modification to the suspension system: • The rear stabiliser bar is now solid, with diameter of 20 mm; • New front and rear springs; • New front and rear dampers; • New specific setup for the Skyhook control system.

Maserati Academy 57 Maserati Range Technical Updates MY12

Exterior

The GranCabrio Sport has a radiator grille with black vertical strips, and the internal surround of the headlamps is also black, with white direction indicators. The usual Trident in the centre of the grille has red details: a feature that only appears on the most powerful models in the Maserati range. The front flick-ups, the door handles and rear-view mirror casings are coloured to match the car’s body, like the miniskirts, supplied as standard, that underline the model’s aggressive spirit and play an important role in its aerodynamics. A black finish is also used along the shadow line, accentuating the car’s dynamic personality. The oval tailpipes are also black; they make the new model unmistakable and are also available in carbon fibre on request.

Interior

The new front seats have a lumbar region adjustment system. The gear shift paddles on the steering wheel are of Trofeo Design type (standard outfit on this model); integral with the steering column, they are longer than usual to ensure they can easily be operated with the wheel at any angle. On the GranCabrio Sport the pedals are in perforated aluminium, designed to meet the needs of a sporty driving style.

Maserati Academy 58 Maserati Range Technical Updates MY12

GranCabrio Fendi Limited Edition

After the great success of its worldwide premier at the Frankfurt International Motor Show in 2011, the GranCabrio Fendi has made its entrance onto the market of reference in a limited edition of 50 cars. All fifty cars are identified by a badge on the right-hand side of the dashboard, beside the GranCabrio logo. The badge carries the Maserati Trident, the Fendi logo and the car’s production number. The GranCabrio Fendi is powered by a 4.7L V8 that delivers 440 HP at 7,000 rpm and a torque of 490 Nm at 4,750 rpm.

Exterior

All fifty cars in this limited edition are in the special “Grigio Fiamma Fendi” colour, a very special “flame grey” with golden highlights, chosen like the rest of the car’s details by Silvia Venturini Fendi, and recalling the yellow and grey colours of the Fendi brand. The exterior equipment is completed by the 20” Trident Design wheels with the Fendi double "F" logo in the centre, yellow brake calipers and a special badge on the roof.

Maserati Academy 59 Maserati Range Technical Updates MY12

Interior

The colours and the materials used for the interior have been produced exclusively for this model. The interior is adorned with FENDI Pergamena yellow walnut, featured on the dashboard, the door panels and the gear lever knob. The brow of the instrument panel, the gear lever and the mat trims are in Roman leather.

Maserati Academy 60 Maserati Range Technical Updates MY12

1. Engine

Cars affected: GranTurismo S (M145HL), GranTurismo S (M145LL), GranTurismo MC (M145PL), GranCabrio (M145BD), GranCabrio Sport (M145DD), Quattroporte S (M139IQ), Quattroporte SPORT GT S (M139MQ) and Quattroporte Sport GTS Awards Edition (M139PQ). The “Low Friction Program” package has been applied to the entire range of 4.7 litre engines; this package improves performance and reduces fuel consumption by about 6%. Most of the improvements are generated by the technology used for the GranTurismo MC Stradale (M145OL); they involve the redesign of the oil sump fluid dynamics and the use of Diamond-Like Coating (DLC) on the tappets and camshaft lobes. The result is an engine with lower fuel consumption and emissions that maintains its performance in terms of power and torque: 323 kW (440 HP) at 7,000 rpm and 490 Nm at 4,750 rpm.

Fuel consumption Urban Extra Urban Combined CO2 (g/km) l/100km CO2 (g/km) l/100km CO2 (g/km) l/100km Granturismo S 553 23,8 248 10,7 360 15,5

* The above data are based on the information available at the time of production. Maserati reserves the right to make changes after homologation without notice.

For more details of the “Low Friction Program” and the package’s specific contents, refer to the “Engine” point of the MY11 section.

The modification of the reed valves together with regulatory requirements have made it necessary to upgrade the engine software.

Maserati Academy 61 Maserati Range Technical Updates MY12

F136 standard wet sump version Version F136 YN-YP-YK-YL-YM

The new F136YP engine installed on the new GranTurismo MC Auto (M145PL) and GranCabrio Sport (M145DD) has a maximum power of 450 HP at 7,000 rpm, meaning 10 horsepower more than the GranTurismo S Automatic or the GranCabrio. The torque is also a massive 20 Nm higher, leaping from 490 Nm to 510 Nm to 4,750 rpm.

Maserati Academy 62 Maserati Range Technical Updates MY12

Engine specifications:

GranTurismo (M145) range MY12 F136 Power Displacement Model Transmission engine [HP] [l] code GranTurismo (M145NL) 405 4.2 automatic UF GranTurismo S Automatic (M145HL) 440 4.7 automatic YN (*) GranTurismo MC Auto (M145PL) 450 4.7 automatic YP (*) GranCabrio (GranTurismo Convertible) 440 4.7 automatic YN (*) (M145BD) GranCabrio (GranTurismo Convertible) 450 4.7 automatic YP (*) Sport (M145DD) GranTurismo S (M145LL) 450 4.7 robotized YK (*) GranTurismo MC Stradale (M145OL) 450 4.7 robotized YK (*)

Engine Tappets (*) : engine block with reed valves F136 YK hydraulic tappets with DLC finish F136 YN hydraulic tappets with DLC finish F136 YP hydraulic tappets with DLC finish F136 UF standard hydraulic tappets

Engine VVT F136 YK intake valve timing control device (50º operation) F136 YN intake valve timing control device (60º operation) F136 YP intake valve timing control device (60º operation) F136 UF intake valve timing control device (50º operation)

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Crankshaft Valve lift Crankshaft Valve lift Series Code stroke stroke in Degrees [º] degrees [º] [mm] degrees [º] [mm] [mm] [mm] degrees

F136 YK 15º after TDC 1.95 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 110 290 470 650

F136 UF 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 125 305 485 665

F136 YN 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YP 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

Maserati Academy 63 Maserati Range Technical Updates MY12

Quattroporte (M139) range (MY12) F136 Power Displacement Model Transmission engine [HP] [l] code Quattroporte (M139HQ) 400 4.2 automatic UE Quattroporte S (M139IQ) 430 4.7 automatic YL (*)

Quattroporte Sport GT S (M139MQ) 440 4.7 automatic YM (*) Quattroporte Sport GT S Awards Edition 440 4.7 automatic YM (*) (M139PQ)

Engine Tappets (*) : engine block with reed valves F136 YL hydraulic tappets with DLC finish F136 YM hydraulic tappets with DLC finish F136 UE standard hydraulic tappets

Engine VVT F136 YL intake valve timing control device (60º operation) F136 YM intake valve timing control device (60º operation) F136 UE intake valve timing control device (50º operation)

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Crankshaft Valve lift Crankshaft Valve lift Series Code stroke stroke in Degrees [º] degrees [º] [mm] degrees [º] [mm] [mm] [mm] degrees

F136 UE 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 125 305 485 665

F136 YL 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YM 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

Maserati Academy 64 Maserati Range Technical Updates MY12

8. Electrical systems and functions

Instrument panel node (NQS) In order to comply with USA/Canadian standards (FMVSS126), changes have had to be made to the screen printed marking of the Instrument Panel and the pushbuttons on the tunnel on Maserati cars, which already have a stability control system. The initials MSP have been replaced with ESC. With effect from MY12, the following warning lights now appear on the instrument panel:

WARNING COLOUR FUNCTION REPLACES LIGHT ASR system failure, ASR tripped, ESC AMBER system failure, ESC tripped

ASR / ESC off AMBER

18:30 -23°C Ven 14 Luglio

3 MANUAL

km km [A] 999

The EPB Failure alert is provided using the braking system failure warning light (the light marked BRAKE for the USA market). For cars with robotized transmission, the symbols on the keys on the left of the NIT and on the tunnel have changed in the same way as those on the instrument panel.

Maserati Academy 65 Maserati Range Technical Updates

Activation: The ESC system is activated automatically whenever the engine is started and can be disabled by pressing the button A for about 2 seconds; the warning light illuminates on the dial and on the display, with a specific message in the latter case. Press button A again to reactivate the system. The amber light on the instrument panel flashes in all operating phases.

The symbols for the ICE mode have been modified to comply with the FMVSS126 standard as shown below.

Old symbol

New symbol

Maserati Academy 66 Maserati Range Technical Updates MY13

0. General information

2013 Range: At the 2012 , Maserati presented the new GranTurismo Sport, a car that reaches new heights in sporty elegance. Drawing on the success of a model that has provided the benchmark in the sector until now, the new GranTurismo Sport stands out from the crowd thanks to its thorough restyling and a series of new technical features that further reinforce its sporty character, in terms of both performance and design, inside and out. With its dual personality, the GranTurismo Sport offers the handling of a real high- performance sports car on the one hand, without any detriment to its elegance and passenger comfort, features no Maserati can be without.

The 2013 range comprises the models listed below: GranTurismo (M145) Range: • GranTurismo (M145NL) • GranTurismo Sport (M145HL/LL) NEW • GranTurismo MC Stradale (M145OL) • GranTurismo MC Auto (M145PL) • GranCabrio (GranTurismo Convertible) (M145BD) • GranCabrio (GranTurismo Convertible) Sport (M145DD)

Quattroporte (M139) Range: • Quattroporte (M139OQ) • Quattroporte S (M139IQ) • Quattroporte SPORT GTS (M139MQ) • Quattroporte Sport GTS Awards Edition (M139PQ)

Maserati Academy 67 Maserati Range Technical Updates MY13

GranTurismo Sport (M145HL and M145LL)

The GranTurismo Sport is the evolution of the GranTurismo S and the GranTurismo S Automatic; this new model combines the two in the Maserati MY13 range. The GranTurismo range now comprises three main versions: • GranTurismo (4.2 L Automatic Transmission); • GranTurismo (4.7 L Automatic/Robotized Transmission); • GranTurismo MC Stradale (4.7 L Robotized Transmission).

The GranTurismo Sport is available with two types of transmission: automatic 6 speed (MC Auto Shift) and robotized 6 speed (MC Shift). With the MC Shift transmission, the GranTurismo Sport has the Transaxle layout, providing optimal weight distribution (47% front and 53% rear) for even better performance and more fun at the wheel. The MC Auto Shift version (automatic transmission) has slightly different weight distribution, with 49% at the front and 51% at the rear.

Maserati Academy 68 Maserati Range Technical Updates MY13

Exterior

The restyling operation has focused mainly on the front of the car. The extreme personality of the GranTurismo MC Stradale has been reinterpreted in terms of sporting elegance, entirely in keeping with the Gran Turismo concept. The new headlamps, with LED DRL parking lights, help to reinforce the character of the car’s front view, with new colours on the internal casing, further enhanced by new finishes. The side grilles are larger, with improved performance. On the new GranTurismo Sport the front bumper has a new central splitter, supplied as standard in matt black but available in carbon fibre as an optional. On the GranTurismo Sport the side miniskirts give the car personality and render it recognisable at a glance. The side miniskirts give the GranTurismo Sport an aggressive style while also increasing its aerodynamic efficiency. They were developed in the wind tunnel and help to convey the flow of air to the wheels. A new central and rear floor has also improved the Cx and Cz coefficients.

Interior

Maserati Academy 69 Maserati Range Technical Updates MY13

The aim pursued in the restyling of the interior was to achieve the ideal balance of comfort and performance, maintaining all functional features by adding character, making the cabin sportier and more attractive, without sacrificing the luxury and elegance key to the Maserati brand. The most importance change is to the seats, which make the car more recognisable even from the outside. The steering wheel has a more racing shape and the seats are shaped more closely to the body. Their form has been specially designed for the GranTurismo Sport, for a discerning driver in search of style and performance, with ergonomics an important factor.

The Maserati GranTurismo Sport states its intentions at once with the introduction of new, more sporty front seats with integral headrest. Special care has been taken over ergonomic aspects, which have generated considerable improvements in terms of space and convenience.

The seats are now even more comfortable, with the seat size increased to 300 mm. To provide the lateral support required for a more sporty driving style, the side of the shell has been modified to increase the volume of the retaining padding, creating a comfortable, body-hugging seat that provides better support even at the side when driving conditions require. The rear seats have also been completely renewed in the same style as those at the front. The philosophy applied has improved comfort levels for all passengers while at the same time giving a sporty, dynamic look. The use of the new sporty front seats with back cover has also considerably increased the space available for the rear occupants. The introduction of the new front and rear seats has increased the space inside the car, with an extra 20 millimetres of leg room for rear passengers.

Maserati Academy 70 Maserati Range Technical Updates MY13

New sporty steering wheel: The new sporting steering wheel is designed to give the driver the best driving experience, thanks to its new ergonomic shape. The steering wheel’s dimensions have been changed, flattening the top and bottom.

The new GranTurismo Sport has two standard contents intended to make driving this car a uniquely thrilling experience:

• Maserati "Active Shifting" (Trofeo design): the steering wheel paddles are longer than those available on the other models in the Maserati range. Their ergonomic shape makes shifting gears easier on winding roads. • Perforated aluminium pedals.

Maserati Academy 71 Maserati Range Technical Updates MY13

1. Engine

The engine of the new GranTurismo Sport (F136YS for automatic transmission version and F136YQ for robotized transmission) features the “”Power Increase” package which introduces major changes to the engine, continuing the series of technological developments Maserati has adopted over the last few years, since the launch of the GranTurismo MC Stradale. The Power Increase package has been applied to the following cars: GranTurismo MC Stradale, GranTurismo MC, GranTurismo Sport and GranCabrio Sport (GranTurismo Convertible Sport). The increased performance (+10 HP and 20 Nm of torque) has been achieved in SPORT mode and at engine speeds above 5,500 rpm. These figures were arrived at by optimising the engine mapping for the use of petrol with at least 98 RON, increasing the valve overlap above 5,500 rpm thanks to the VVT system and optimal use of timing advance. In Normal mode, the intake timing control devices are used in the same way as previously.

The modifications made to the engine to improve performance in terms of power and torque have not generated any increase in fuel consumption or emissions. The improvements include the development of new engine mapping to optimise combustion parameters, improved management of at high rpm and, last but not least, the redesign of new, reinforced pistons. These changes, combined with the use of 98 RON petrol to maximise performance, increase the engine’s maximum power to 338 kW (460 HP) at 7,000 rpm, with a peak torque of 520 Nm obtained at 4,750 rpm.

Maserati Academy 72 Maserati Range Technical Updates MY13

F136YS-YQ Engine Technical Data

Displacement: 4,691 cc Bore: 94 mm Stroke: 84.5 mm Compression ratio: 11.25:1 Maximum power: 338 kW (460 HP) Engine speed at max power 7,000 rpm Maximum torque: 520 Nm Engine speed at peak torque 4,750 rpm Maximum rpm: 7,200 rpm

The new F136YS and F136YQ engines have a maximum power of 338 kW (460 HP) at 7,000 rpm, meaning 10 horsepower more than the GranTurismo S. The torque also rises by 10 Nm from the 510 Nm of the GranTurismo S to the 520 Nm of the GranTurismo Sport at 4,750 rpm. The improvements introduced by the “Low Friction Program” and the “Power Increase” package have also helped to improve the performances of the engine installed on the GranCabrio (GranTurismo Convertible). The new F136YP engine delivers 10 HP more than the engine mounted on the GranCabrio MY12. 80% of peak torque is already available from 2,500 rpm and peak torque is also increased by 20 Nm (from 490 Nm to 510 Nm at 4,750 rpm).

Maserati Academy 73 Maserati Range Technical Updates MY13

Engine specifications:

GranTurismo (M145) range (MY13) F136 Power Displacement Model Transmission engine [HP] [l] code GranTurismo (M145NL) 405 4.2 automatic UF GranTurismo Sport (M145HL) 460 4.7 automatic YS (*) GranTurismo MC Auto (M145PL) 460 4.7 automatic YS (*) GranCabrio (M145BD) 450 4.7 automatic YP (*) GranCabrio Sport (M145DD) 460 4.7 automatic YS (*) GranTurismo Sport (M145LL) 460 4.7 robotized YQ (*) GranTurismo MC Stradale (M145OL) 460 4.7 robotized YQ (*)

Engine Tappets (*) : engine block with reed valves F136 YP hydraulic tappets with DLC finish F136 YQ hydraulic tappets with DLC finish F136 YS hydraulic tappets with DLC finish F136 UF standard hydraulic tappets

Engine VVT F136 YP intake valve timing control device (60º operation) F136 YQ intake valve timing control device (50º operation) F136 YS intake valve timing control device (60º operation) F136 UF intake valve timing control device (50º operation)

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Crankshaft Valve lift Crankshaft Valve lift Series Code stroke stroke in Degrees [º] degrees [º] [mm] degrees [º] [mm] [mm] [mm] degrees

F136 UF 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 125 305 485 665

F136 YQ 15º after TDC 1.95 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 110 290 470 650

F136 YP 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YS 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

Maserati Academy 74 Maserati Range Technical Updates MY13

Engine specifications:

Quattroporte (M139) range (MY13) F136 Power Displacement Model Transmission engine [HP] [l] code Quattroporte (M139OQ) 400 4.2 automatic UE Quattroporte S (M139IQ) 440 4.7 automatic YR (*)

Quattroporte Sport GT S (M139MQ) 450 4.7 automatic YT (*) Quattroporte Sport GT S Awards Edition 450 4.7 automatic YT (*) (M139PQ)

Engine Tappets F136 YR hydraulic tappets with DLC finish F136 YT hydraulic tappets with DLC finish F136 UE standard hydraulic tappets (*) : engine block with reed valves

Engine VVT F136 YR intake valve timing control device (60º operation) F136 YT intake valve timing control device (60º operation) F136 UE intake valve timing control device (50º operation)

ENGINE INTAKE SYSTEM EXHAUST SYSTEM VVT Electric timing

Piston Piston Stroke Crankshaft Valve lift Crankshaft Valve lift Series Code stroke stroke in Degrees [º] degrees [º] [mm] degrees [º] [mm] [mm] [mm] degrees

F136 UE 15º after TDC 1.80 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 50 125 305 485 665

F136 YR 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

F136 YT 25º after TDC 5.20 0.60 ± 0.08 0º at TDC 0 0.60 ± 0.08 60 131 311 491 671

Maserati Academy 75 Maserati Range Technical Updates MY13

Exhaust By-Pass Valves

The exhaust of the GranTurismo Sport retains the valves on the tailpipes which bypass the silencer to give a strongly sporty identity. In “Auto Sport” mode, the exhaust valves open from 2,500 rpm. In Manual Sport mode the valves are open at all times. In “Normal” mode, the valves are closed, forcing the exhaust gases to take the longest route, dispersing their energy to reduce noise levels.

Maserati Academy 76 Maserati Range Technical Updates MY13

3. Transmission

ZF Automatic Transmission The ZF six speed automatic transmission includes the super-responsive MC Auto Shift mode, developed directly from the transmission of the Quattroporte Sport GT S for the GranTurismo S and the GranCabrio Sport. There are 5 modes available: Auto-Normal, Auto-Sport, Manual-Normal, Manual-Sport and Ice. In Manual Normal mode the driver controls gear shifts and changes are permitted up to the red area on the rpm counter. In Auto-Sport mode gear shifting is completely automatic and changes are made more quickly, for a more sporty handling sensation. The cars which feature the MC Auto Shift strategy are: GranTurismo Sport (M145HL), GranTurismo MC (M145PL) and GranCabrio (GranTurismo Convertible) Sport (M145DD).

Launch Control (MC Start Strategy): The new MC Auto Shift includes the Launch Control mode and is active in Auto-Sport mode. To optimise standing starts, the automatic transmission offers the MC Start Strategy, which works with the MSP/ESC off. The driver has to keep the brake pedal depressed and then press the accelerator pedal before releasing the brake pedal when the engine reaches the optimal speed (2,300- 2,500 rpm). This fast start strategy, only recommended for use on the racing circuit and in situations of absolute safety, reduces the time from 0 to 100 [Km/h] (0-62 mph) from 5.0 to 4.8 seconds.

Gear Keeper As on the Quattroporte Sport GT S, the MC Auto Shift allows the driver to take even more charge of the car’s performance. In Manual-Sport mode, the chosen gear is maintained even when the engine reaches the rev limiter setting.

Rpm Counter For unbeatable driving pleasure, a digital rpm counter that indicates the ideal time to shift gear is also provided.

Downshifting with “double declutch” The use of the “double declutch” technique when downshifting allows the engine to slow to speeds more suitable for the new gear. This strategy is available in Manual Sport and Auto Sport modes.

Maserati Academy 77 Maserati Range Technical Updates MY13

6. Suspensions and wheels Sport-Skyhook set-up:

In terms of suspensions, the new GranTurismo Sport is equipped as standard with the Sport Skyhook system, the evolution of the continuous damping control system, which makes the car even more responsive and enjoyable to drive, while simultaneously increasing comfort levels for passengers. In SPORT mode, the car is even more sensitive to inputs from the driver, while in Normal mode it constantly adapts the damping response to absorb any roughness in the road surface and give smoother handling. All this delivers a level of handling response that combines sporty performance and comfort in all driving conditions .

SKH N: Skyhook Normal Mode SKH S: Skyhook Sport Mode

In the GranTurismo Sport, the difference between dynamic response in Normal and Sport modes is even more noticeable than with the previous version of the Skyhook. The new setup of the GranTurismo Sport’s suspensions has improved the car’s dynamic behaviour for both transmission types, automatic and robotized, in both Sport and Normal modes.

Maserati Academy 78 Maserati Range Technical Updates MY13

In NORMAL mode, the impact damping response is safe but even smoother, while in SPORT mode all this car’s sporty, agile personality comes to the fore thanks to an increase of about 10% in vertical rigidity, emphasising the car’s dynamic performance and reducing roll. The change is most noticeable on the GranTurismo Sport with automatic transmission, where the dimensions of the rear stabiliser bar have been increased by about 12% (+2 [mm], from 19 to 21 [mm]) compared to the solution previously adopted on the GranTurismo S Automatic. The GranTurismo Sport with robotized transmission has benefited from the new setup, with improved handling, traction and consumption.

GranTurismo Sport Automatic Transmission (M145HL): • New rear springs • New rear stabiliser bar • New Skyhook front and rear dampers with variable setup • New SW for Skyhook ECU

GranTurismo Sport Robotized Transmission (M145LL): • New Skyhook front and rear dampers with variable setup • New SW for Skyhook ECU

Technical data and information about valve coil: Current: from 0 to 1.8 [A] variable value Coil resistance at 20ºC: 2.13 [Ohm] ±10% (connector contact) No. of turns: 300 ± 3 Max continuous coil temperature: 120ºC

N.B.: For more information about the Skyhook system, refer to the “Suspension Control System (NCS)” section of the “Advanced Electronics 2” manual.

Maserati Academy 79 Maserati Range Technical Updates MY13

Load-Velocity Graph

Load-velocity graph of the extension and compression phases in Sport and Normal modes.

Maserati Academy 80 Maserati Range Technical Updates MY13

8. Electrical systems and functions

Adaptive Headlamps System (NFA) Cars affected: entire M145 range. The front light assembly retains its original functions and shape but has been completely redesigned and upgraded thanks to the addition of the DRL (Daytime Running Light) LED technology. As well as improving the car’s appearance, the new LED headlights increase visibility and thus safety. The new LED headlamp is available on all models in the GranTurismo range. Unlike the conventional bulb-type headlamp, the new LED lights come on faster and with greater brightness, last longer, consume less electricity and are able to maintain their performance intact over time.

The external lights and direction indicators only come on with the ignition key turned to MAR, except for the parking lights, which can be switched on at all times. The external lights can be switched on and off manually or automatically, in response to external light levels.

The switch A has 5 positions: Position Function 0 DRL lights (*) on (if enabled)

Side and numberplate lights on

Dipped headlamps and side and numberplate lights on Parking lights on AUTO external lights switched on and off automatically in response to external light levels

(*) Never enabled on cars intended for the Japanese market; always enabled on cars intended for the Canadian market.

Maserati Academy 81 Maserati Range Technical Updates MY13

DRL lights The DRL lights are normally enabled. With the light switch A on and and the fog lights on*, the LED headlamp can be switched on at full brightness (DRL), at low brightness (sidelights) or off. The table illustrates these lights’ variation in status.

Rear side and Light switch Key DRL Engine Front sidelights numberplate position position lights lights

OFF OFF ON

ON ON OFF MAR ON OFF/ON OFF ON

OFF/ON OFF ON

(*): the fog lights are only installed on the GranTurismo (M145NL)

ECU LED 2.1 With the introduction of the LED headlamps for the DRL function, it has become necessary to adopt a new ECU to control the DRL/Side/Parking function. The ECU is installed outside the light assemblies, inside the right wheel arch, opposite to the CSA (Theft Alarm ECU). The ECU has a specially designed housing to accommodate the interface connectors and ensure a watertight seal.

Right front wheel arch LED ECU mounted on the bulkhead inside the right front wheel arch

Maserati Academy 82 Maserati Range Technical Updates

The functions are controlled by means of the input signals: Command 1 and Command 2, on the basis of the following true table.

ECU LED 15 pin connector Pin # Function 1 LED 2.1 Supply Vbatt 2 LED 2.1 GND 3 Diagnosis output 4 Command1 5 Command2 6 LED Anode Left LED ECU connector pinout 7 Led Cathode Left 8 NTC_Sig_Left 9 Sns_Supply_Left 10 R_Code_ Left 11 LED Anode Right 12 Led Cathode Right 13 NTC_Sig_Right 14 Sns_Supply_Right 15 R_Code_ Right

Maserati Academy 83 Maserati Range Technical Updates MY13

NFA connector pinout The headlamp connector is unchanged but some modifications have been made to the pinout, such as the use of some pins previously not used and the change in use of some others. No changes for connector/connections to sensors installed on car axle.

The pinout of the 14 pin NFA has changed compared to the previous MY versions.

14 pin connector, LEFT and RIGHT SIDE 14 pin connector, LEFT and RIGHT SIDE Pin Functions (prior to MY13) Pin Functions (MY13) 1 Lamp ground 1 Lamp ground 2 Direction indicator input 2 Direction indicator input 3 Side light input 3 Left and right LED anode (positive) 4 Side marker light input 4 Side marker light input 5 Full beam headlamp input 5 Full beam headlamp input 6 Additional full beam headlamp input 6 Additional full beam headlamp input 7 Dipped beam headlamp input 7 Dipped beam headlamp input 8 Ground (Litronic) 8 Ground (Litronic) 9 +15 9 +15 10 - 10 Left (or right) LED cathode (negative) 11 LitCOM 11 LitCOM 12 - 12 NTC Left (or right) sig 13 - 13 Left and Right sensor power supply 14 - 14 Left (or Right) R-Code

Maserati Academy 84 Maserati Range Technical Updates MY13

Electric system diagram:

Coinciding with introduction of the new DRL 2.1 ECU, the NBC pinout has been modified.

Maserati Academy 85 Maserati Range Technical Updates MY13

NSP parking sensor node: The new front bumper of the GranTurismo Sport, with integral parking sensors positioned lower down, has made it necessary to reprogram the NSP ECU.

Driving Position node (NAG)

The NAG, installed underneath the driving seat, now features a new HW10 ECU and a new SW version 2.1. The changes relate to: • Seat movement timer • EEP function with anti-trapping system. The Passenger Easy Entry system allows the seat to be moved forward to close to the limit position before the backrest is tilted forward. The seat moves back into place before the backrest is returned to the driving position.

"Open door timer" function When a front door is opened with Key-off the seat can be moved for a certain period of time (door open timer = 3 min.), after which the ECU switches to standby mode. With the new modification, whenever both front doors are closed the timer is switched to 30 sec to allow the seat to be moved with the doors closed. At the timer timeout, the NAG sends a message enabling the network to switch to sleep mode.

EEP function Changes have been made to the Passenger Easy Entry (EEP) function as described below.

Maserati Academy 86 Maserati Range Technical Updates MY13

For a more complete understanding of the changes made, the main functions of the EEP are summarised below.

Protection functions: The EEP function may cause panic, so to avoid this risk the EEP is only enabled if the anti-trapping system is active and after it has been initialised.

Anti-panic function: Activation of any button, memory, seat or steering wheel adjustment, immediately stops the automatic function in progress (memory recall, EEG, EEP or EEP initialisation).

Seat slide anti-trapping function during EEP: To prevent the seat from squashing the rear seat passengers when it moves back into place after the EEP routine, the ECU is equipped with a “virtual force sensor”. Thanks to a mathematical algorithm which processes the seat slide movement data (speed, acceleration, variation in accelerator, motor power supply current, etc., Bitron patent), when a force of 164 kg is exceeded in 10 mm of travel, the ECU reverses the seat travel direction for 208 pulses of the Hall sensor (about 3 cm).

The function is not active in the following cases: • during initialisation • during gear motor peak torque (about 1 sec.) • in the first 5 mm of travel from the electric stop • during automatic realignment after battery disconnection.

Initialisation allows memorisation of: • seat slide rear limit stop • seat slide front limit stop • reference mapping from seat slide forward to backward positions • reference mapping from seat slide backward to forward positions.

Maserati Academy 87 Maserati Range Technical Updates MY13

Changes to operation of the EEP

Anti-panic + Manual Movement during return from EEP: After triggering of an anti-panic response which stopped a return from the EEP position (backrest to driving position), if the seat is moved backward or forward using the manual seat control, the new position is considered to be the “new driving position”.

Speed not valid during EEP: If the vehicle speed signal is not valid, VehicleSpeedFailSts=1, the EEP will only operate with Key-OFF and door open.

Systematic mapping realignment: To prevent the build-up of too many position count pulse errors, and prevent the motors, actuators and mechanical parts from being subjected to the mechanical/electric stress of the mechanical limit stop, the EEP function utilises the mechanical limit stop once and then uses an electronic limit stop, 36 pulses (about 5 mm) earlier, the next 20 times. The 22nd time the mechanical limit stop will again be used. When the mechanical limit stop is used, the electric limit stop position memory is updated.

Drift correction for repeated easy entries:

To prevent the build-up of counting errors in the event of repeated easy entries, the return position is only saved if it differs from the current position by +/- 3 pulses.

Anti-trapping current sensor failure: If a current I< 20050 mA is detected for a time of 1 sec. during initialisation or an EEP, initialisation/movement of the seat is stopped and the “Current malfunction” is recorded in the memory. The EEP function cannot be activated as long as the fault persists. The test is performed whenever an EEP is activated. If the current measured is I>20050 the system starts operating correctly again and the disappearance of the fault is recorded in the memory.

Maserati Academy 88 Maserati Range Technical Updates Engine Specifications

Maserati Academy 89 Maserati Range Technical Updates

Maserati Academy – July 2012

Maserati reserves the right to make changes to the cars described in this manual at any time, for technical or commercial reasons. All rights reserved. Any, even partial, reproduction of this document without the prior written authorisation of MASERATI S.p.A. is forbidden.

Maserati Academy 90