BMW M5 E60 M Power owners manual page 208

text version of content this owner's manual page from owners manual to the vehicle BMW M5 E60, year of production 2005 - 2010:

BMW recommends that you replace all tires Temperature after 6 years at most, even if some tires may last The temperature grades are A, the highest, B, for 10 years. This also concerns the tire of the and C, representing the tire's resistance to the spare wheel. generation of heat and its ability to dissipate Uniform Tire Quality Grading heat when tested under controlled conditions on a specified indoor laboratory test wheel. Quality grades can be found where applicable Sustained high temperature can cause the on the tire sidewall between tread shoulder and material of the tire to degenerate and reduce maximum section width. For example:tire life, and excessive temperature can lead to Tread wear 200 Traction AA sudden tire failure. The grade C corresponds to Temperature A a level of performance which all passenger car tires must meet under the Federal Motor Vehi- cle Safety Standard No. 109. Grades B and A Wheels and tiresDOT Quality Grades represent higher levels of performance on the Tread wear laboratory test wheel than the minimum Traction AA A B C required by law. Temperature A B C All passenger car tires must conform to The temperature grade for this tire is Federal Safety Requirements in addition established for a tire that is properly to these grades.< inflated and not overloaded. Excessive speed, underinflation, or excessive loading, either sep- Tread wear arately or in combination, can cause heat buildup and possible tire failure.< The tread wear grade is a comparative rating based on the wear rate of the tire when tested M+S under controlled conditions on a specified gov-Winter and all-season tires. ernment test course. For example, a tire graded These have better winter properties than sum- 150 would wear one and one-half (1γ) times as mer tires. well on the government course as a tire graded 100. The relative performance of tires depends XL upon the actual conditions of their use, how- ever, and may depart significantly from the Indicates specially reinforced tires. norm due to variations in driving habits, service practices and differences in road characteris-Tire condition tics and climate. Traction Inspect your tires frequently for tread wear, signs of damage and for foreign objects lodged The traction grades, from highest to lowest, are in the tread. Check the tread depth. AA, A, B, and C. These grades represent th e tire's ability to stop Minimum tread depth on wet pavement, as measured under con-The tread depth should not drop below 0.12in/ trolled conditions on specified government test 3mm, although, for example, European legisla- surfaces of asphalt and concrete. A tire marked tion only specifies a minimum tread depth of C may have poor traction performance.0.063in/1.6mm. At tread depths below 0.12in/ The traction grade assigned to this tire is 3mm there is an increased risk of high-speed based on straight-ahead braking traction hydroplaning, even when only small amounts of tests, and does not include acceleration, cor-water are present on the road surface. nering, hydroplaning, or peak traction charac-When winter tires wear down past a tread depth teristics.< of 0.16 in/4 mm, they become perceptibly less 206 Online Edition for Part no. 01 41 2 600 738 - © 08/08 BMW AG

owners manual BMW M5 E60

owners manual BMW M5 E60 - year of production: 2005, 2006, 2007, 2008, 2009, 2010 - BMW M5 E60 M Power owners manual EN