2008 BMW 5 Series Owner's Manual - Page 227

550i Tire size Compact wheel*: T 135/80 R 17 102 M 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 245/40 R 18 93 Y 245/45 R 17 95 W 245/45 R 17 99 V M+S XL 225/50 R 17 94 H M+S 225/50 R 17 94 W 245/40 R 18 97 V M+S XL Front: 245/40 R 18 93 Y Rear: 275/35 R 18 95 Y Front: 245/35 R 19 93 Y XL Rear: 275/30 R 19 96 Y XL 32/220 38/260 32/220 35/240 33/230 41/280 Pressure specifications in psi/kPa 61/420 Traveling speeds including those exceeding 100 mph/160 km/h 32/220 38/260 32/220 38/260 38/260 45/310 33/230 32/220 35/240 39/270 35/240 39/270 33/230 32/220 33/230 39/270 32/220 38/260 39/270 33/230 38/260 46/320 38/260 45/310 Navigation Reference Mobility Communications Entertainment More details on the permissible load and weights can be found on page 257. Tire identification marks Knowledge of the labeling on the side of the tire makes it easier to identify and choose the right tires. 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 Tire size e.g. 225/50 R 17 94 W 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) Y = up to 186 mph/300 km/h Tire Identification Number Tires with DOT codes meet the guidelines of the U.S. Department of Transportation. DOT code: e.g. DOT xxxx xxx 3307 Manufacturer code for tire make Tire size and tire design Tire age 225 Online Edition for Part no. 01 41 0 014 240 - © 08/07 BMW AG Driving tips Controls At a glance