See also:

Tire size
Example: 255/55 R 19 107 V 255: nominal width in mm 55: aspect ratio in % R: radial tire code 19: rim diameter in inches 107: load rating, not for ZR tires V: speed rating, before the R on ZR ti ...

Warning stages
Prewarning This warning is issued, for example, when there is the impending danger of a collision or the distance to the vehicle ahead is too small. Acute warning Warning of the imminent danger ...

Switching on automatically
Select transmission position R with the engine running. The Top View and PDC images are displayed if the system is switched on via iDrive. ...