BMW 7 E65 owners manual page 189

text version of content this owner's manual page from owners manual to the vehicle BMW 7 E65, year of production 2001 - 2008:

wear one and one-half – 1g – times as Uniform Tire Quality Grading well on the government course as a tire Quality grades can be found where appli- graded 100. The relative performance of cable on the tire sidewall between tread tires depends upon the actual conditions of shoulder and maximum section width. For their use, however, and may depart signifi-example: At a glance cantly from the norm due to variations in Treadwear 200 Traction AA driving habits, service practices and differ-Temperature A ences in road characteristics and climate. Do not use retreaded tires, since dri- Traction ving safety may be impaired. Possible The traction grades, from highest to lowest, variations in the design and the age – which are AA, A, B, and C. could be substantial – of the carcasses can Controls Those grades represent the tire's ability to lead to unusually rapid wear.< stop on wet pavement as measured under Tire age controlled conditions on specified govern- ment test surfaces of asphalt and concrete. The tire's date of manufacture is indicated A tire marked C may have poor traction on the sidewall: performance. DOT . 3402 indicates that a tire was The traction grade assigned to this manufactured in week 34 of the year 2002. Driving tips tire is based on straight-ahead Regardless of mileage or wear, BMW braking traction tests, and does not include recommends that you replace all tires – acceleration, cornering, hydroplaning, or including the spare – after a maximum of peak traction characteristics.< 6 years, even though the tires may have a theoretical service life of up to 10 years. Temperature Navigation The temperature grades are A – the Wheel and tire highest –, B, and C, representing the tire's resistance to the generation of heat and its combinations ability to dissipate heat when tested under controlled conditions on a specified indoor The right choice laboratory test wheel. Use only wheel and tire combinations Sustained high temperature can cause the that BMW has approved for your par- Entertainment material of the tire to degenerate and ticular vehicle. Variations in factors such as reduce tire life, and excessive temperature manufacturing tolerances mean that even can lead to sudden tire failure. The grade C wheels and tires with identical official size corresponds to a level of performance ratings could actually have different dimen- which all passenger car tires must meet sions than the approved units – these diffe- under the Federal Motor Vehicle Safety rences could lead to body contact, and Standard No. 109. Grades B and A repre- with it the risk of severe accidents. If non- Communications sent higher levels of performance on the approved wheels and tires are used, BMW laboratory test wheel than the minimum cannot evaluate their suitability, and there- required by law. fore cannot be held liable for driving The temperature grade for this tire is safety.< established for a tire that is properly BMW tests certain tire brands for each tire inflated and not overloaded. Excessive size, classifies them as road-safe and speed, underinflation, or excessive approves them. Consult your BMW center Mobility loading, either separately or in combina- for more information. Observe any country- tion, can cause heat buildup and possible specific regulations, e.g. on making a cor- tire failure.< responding entry in the vehicle documents. 187 Online Edition for Part No. 01 41 0 157 197 - © 11/02 BMW AG Reference

owners manual BMW 7 E65

owners manual BMW 7 E65 - year of production: 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 - BMW 7 E65 owners manual EN