See also:

Tire identification marks
Tire size 255/50 R 19 103 Y 255: nominal width in mm 50: aspect ratio in % R: radial tire code 19: rim diameter in inches 103: load rating, not for ZR tires Y: speed rating, before the R on ZR ...

Actions in the event of a flat tire
Normal tires 1. Identify the damaged tire Do this by checking the air pressure in all four tires. If the tire inflation pressure in all four tires is correct, the Flat Tire Monitor may not have ...

Overview
The launch of the fifth generation of the BMW 7-Series sets a new benchmark in automotive luxury, technical innovation and class-leading driving dynamics, combined with emissions reducing and fuel ...