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 ...

Tire inflation pressure values up to 100 mph/160 km/h
528i 528i xDrive 535i 550i 535i xDrive 550i xDrive ...

Coolant level
Checking 1. Let the engine cool. 2. The coolant level is correct if it lies between the minimum and maximum marks. The marks are on the side of the coolant reservoir. Adding engine oil 1. Let ...