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Tires TIRE MARKINGS

P (1) Aspect ratio (3) The P indicates the tire is for passenger This two-digit number, known as the vehicles. aspect ratio, gives the tire's ratio of height to width (this is also known as the tire Tire width (2) profile). The lower the number, the shorter This three-digit number gives the width in the tire’s sidewall. millimetres of the tire from sidewall edge to sidewall edge. In general, the larger the number, the wider the tire.

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R (4) The R stands for radial. Radial ply Letter Rating Speed Rating construction of tires has been the industry Q 99 mph standard for the past 20 years. R 106 mph Wheel diameter (5) S 112 mph This two-digit number is the wheel or rim T 118 mph diameter in inches. If you change your U 124 mph wheel size, you will have to purchase new H 130 mph tires to match the new wheel diameter. V 149 mph Load index (6) W 168 mph Y 186 mph* This two- or three-digit number is the tire's load index. It is a measurement of * For tires with a maximum speed how much weight each tire can support. capability over 149 mph, tire manufacturers sometimes use the Note: You may not find this information letters ZR. For those with a maximum on all tires because it is not required by speed capability over 186 mph, tire law. manufacturers always use the letters Speed rating (7) ZR. The speed rating denotes the speed at which a tire is designed to be driven for extended periods of time. The ratings U.S DOT tire identification number (8) range from 99 miles per hour (mph) to 186 This begins with the letters DOT and mph. These ratings are listed in the indicates that the tire meets all Federal following table. standards. The next two numbers or Note: You may not find this information letters are the plant code where it was on all tires because it is not required by manufactured, and the last four numbers law. represent the week and year the tire was built. For example, the numbers 3197 means the 31st week of 1997. The other numbers are marketing codes used at the manufacturer's discretion. This information can be used to contact consumers if a tire defect requires a recall. M+S (9) The M+S or M/S indicates that the tire has some mud and snow capability. Most radial tires have these markings: they have some mud and snow capability.

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Tire ply composition and materials Temperature letter (14) used (10) This letter indicates a tire's resistance to The number of plies indicates the number heat. The temperature grade is for a tire of layers of rubber-coated fabric in the that is inflated properly and not tire. In general, the greater the number of overloaded. Excessive speed, plies, the more weight a tire can support. under-inflation or excessive loading, Tire manufacturers also must indicate the either separately or in combination, can materials in the tire, which include steel, cause heat build-up and possible tire nylon, polyester, and others. failure. From highest to lowest, a tire's resistance to heat is graded as A, B, or C. Treadwear number (11) For more information, refer to page 235. This number indicates the tire's wear rate. The higher the treadwear number is, the Maximum permissible inflation longer it should take for the tread to wear pressure (15) down. For example, a tire graded 400 This number is the greatest amount of air should last twice as long as a tire graded pressure that should ever be put in the tire 200. under normal driving conditions. For more information, refer to page 235. Traction letter (12) This letter indicates a tire's ability to stop on wet pavement. A higher graded tire should allow you to stop your car on wet roads in a shorter distance than a tire with a lower grade. Traction is graded from highest to lowest as AA, A, B, and C. For more information, refer to page 235. Maximum load rating (13) This number indicates the maximum load in kilograms and pounds that can be carried by the tire.

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RECOMMENDED TIRE FITMENT The following chart details the tires recommended for use in the USA and Canada: Tire size Pattern 235/50 R 18 97H Continental ContiTouring Contact CH95 255/40 ZR 19 96Y Pirelli P Zero 255/35 ZR 20 97Y Michelin Pilot Sport

The following chart details the tires recommended for use in Mexico see column A below, Dominican Republic see column B below: Tire size Pattern A B 235/50 ZR 18 97W Pirelli P6000 Powergy - Y 255/40 ZR 19 96Y Pirelli P-Zero Y - 255/35 ZR 20 97Y Michelin Pilot Sport Y -

For all other countries refer to your local Jaguar Dealer for specific tire fitment.

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TIRE CARE Incorrect wheel alignment will accelerate In the interests of safety and reliability, it is tire wear. Fins on the inner or outer edges advisable to check the tires, including the of the tread pattern are caused by spare, for condition and pressure on a excessive toe-in or toe-out respectively. weekly basis. Refer to page 225 for As fins may also be caused by high instructions on how to check tire cornering speeds or road camber, it is pressures. advantageous to have the cause detected by having the wheel alignment checked. Wear Tire repair It is recommended that damaged tires are discarded and new tires fitted. They must not be repaired in view of the high performance capability of the vehicle. Damage Excessive local distortion can cause the casing of a tire to fracture and may lead to premature failure. Tires should be examined especially for cracked walls, exposed cords, etc. Flints and other sharp objects must be removed from the All tires fitted as original equipment tire tread; if left in they may work through include tread wear indicators (TWI) in their the cover. Clean off any oil or grease tread pattern. When the tread has worn to contamination by using a suitable cleaner. a remaining depth of 1.6 mm the Caution: Do not use paraffin indicators appear at the surface as bars (kerosene), because this has a which connect the tread pattern across detrimental effect on rubber. the full width of the tire. Age It is illegal, in certain countries, to continue to use tires after the tread has Tires degrade over time, even when they worn to less than 1.6 mm over three are not being used. It is recommended quarters of the width and the entire that tires generally be replaced after 6 circumference of the tire. years of normal service. Heat caused by hot climates or frequent high loading It should be noted that the properties of conditions can accelerate the aging many tires alter progressively with wear. process. In particular the wet grip and aquaplaning resistance are gradually but substantially You should replace the spare tire when reduced. Extra care and speed restriction you replace other road tires due to the should therefore be exercised on wet aging of the spare tire. roads as the effective tread depth diminishes.

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Tire use after vehicle storage After a long period of a vehicle standing, tires may become locally distorted with a flat area. This will cause an uneven ride for a few miles until the tires have warmed up and the flat rounds off. However, to reduce the effects of flat-spots, the tires of a stored vehicle may be inflated to pressures not exceeding 60 psi (420 kPa).

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TIRE QUALITY GRADES ! United States Department of WARNING: Transportation/Uniform Tire Quality The traction grade assigned to this tire Grades is based on braking (straight ahead) traction tests and does not include The following information relates to the acceleration, cornering hydroplaning tire grading system developed by the or peak traction characteristics. National Highway Traffic Safety Administration which will grade tires by Temperature - A, B, C tread wear, traction and temperature The temperature grades A (the highest), B performance. and C represents the tire’s resistance to Tread wear the generation of heat and its ability to dissipate heat when tested under The tread wear grade is a comparative controlled conditions on a specified rating based on the wear rate of the tire indoor laboratory test wheel. when tested under controlled conditions on a specified government test course. Sustained high temperature can cause For example, a tire graded 150 would the material of the tire to degenerate and wear one and a half (1.5) times as well on reduce tire life, and excessive the government course as a tire temperature can lead to sudden tire graded 100. failure. The relative performance of tires depends The grade C corresponds to a level of upon the actual conditions of their use, performance which all passenger car tires however, and may depart significantly must meet under the Federal Motor from the norm due to variations in driving Vehicle Safety Standard No. 109. habits, service practices and differences Grades B and A represent higher levels of in road characteristics and climate. performance on the laboratory test wheel Traction - A, B, C than the minimum required by law. The traction grades, from the highest to the lowest are AA, A, B and C. The ! WARNING: grades represent the tire’s ability to stop The temperature grade for these tires on wet pavements as measured under is established for a tire that is properly controlled conditions on specified inflated and not overloaded. Excessive government test surfaces of asphalt and speed, under-inflation or excessive concrete. A tire marked C may have poor loading, either separately or in traction performance. combination, can cause heat build-up and possible tire failure.

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TIRE RENEWAL It is recommended that only Jaguar When renewing tires, it is preferable to fit approved winter tires are used, as a complete vehicle set. If either front or follows: rear tires only need to be renewed, new tires must be fitted, as axle sets, Tire Size Pattern to replace worn ones. 235/55 R 17 Continental After new tires have been fitted the 103V ContiWinter wheels need to be dynamically balanced. Contact TS790 The radial ply tires specified are designed 235/50 R 18 Continental to meet the high-speed performance 101V ContiWinter capability of this vehicle. Contact TS790 Do not fit tires with a different tread 235/50 R 18 Pirelli Snowsport pattern, size or speed rating. 101V 240 SNOW CHAINS Tire directional indicators must be Snow chains, of the recommended type, rotating in a clockwise direction when may only be fitted to rear wheels. viewed from the right-hand side of the Contact your Jaguar Dealer for details vehicle, and anti-clockwise when viewed and availability of approved snow chains. from the left-hand side of the vehicle. The maximum speed when using snow Do not exceed 210 km/h (130 mph) when chains is 48 km/h (30 mph). using Jaguar approved winter tires. Remove the snow chains immediately the Winter tires must be used in vehicle sets, roads are clear of snow. that is, fitted on all four wheels. Ensure the fitting instructions supplied The recommended tire pressures for with the snow chains are kept in a safe winter tires are the same as shown on place, for example, with this literature page 225. pack. If non-Jaguar approved winter tires are Note: Dynamic stability control MUST be fitted, refer to the tire pressure switched OFF when using snow chains. information label, attached to the inside of WINTER (SNOW) TIRES the fuel filler flap. The tires fitted as original equipment are designed with a rubber compound, tread pattern and width specially suited for high speeds in normal road conditions, but they are less suitable during extremes of low temperatures, snow and ice. The use of winter tires will considerably improve the vehicle’s handling during these conditions.

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