2006 BMW M5 Owner's Manual - Page 179

Observe all national and local maximum speed limits, otherwise violations of the law could occur. Tire size Pressure specifications in psi/kPa Traveling speeds up to max. of 100 mph/160 km/h All pressure specifications in the table are indicated in psi/ kilopascal with cold tires. Cold = ambient temperature 245/45 R 18 100 V XL M+S 255/40 ZR 19 285/35 ZR 19 35/240 37/250 38/260 37/250 35/240 37/250 38/260 37/250 41/280 41/280 47/320 47/320 Traveling speeds including those exceeding 100 mph/160 km/h More details on the permissible load and weights can be found on page 204. Knowledge of the labeling on the side of the tire makes it easier to identify and choose the right tires. Tires with DOT codes meet the guidelines of the U.S. Department of Transportation. DOT code: e.g. DOT xxxx xxx 0806 Tire size e.g. 285/35 ZR 19 245/45 R 18 100 V Nominal width in mm Aspect ratio in Ξ Belted construction - radial Rim diameter in inches Carrying capacity ID-code (not in ZR tires) Speed code letter (in ZR tires before the R) Manufacturer code for tire make Tire size and tire design Tire age Tire age The manufacturing date of tires is contained in the tire coding: DOT...0806 indicates that the tire was manufactured in week 8 of 2006. BMW recommends that you replace all tires after 6 years at most, even if some tires may last for 10 years. This also concerns the tire of the spare wheel. Speed letter Q = up to 100 mph/160 km/h T = up to 118 mph/190 km/h H = up to 131 mph/210 km/h V = up to 150 mph/240 km/h W = up to 167 mph/270 km/h Y = up to 186 mph/300 km/h Z = over 150 mph/240 km/h Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Tread wear 200 Traction AA Temperature A 177 Online Edition for Part No. 01 41 0 012 213 - © 02/06 BMW AG Reference Mobility Uniform Tire Quality Grading Communications Entertainment Navigation Tire identification marks Tire Identification Number Driving tips Controls At a glance