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 ...

Electronic displays
With the Professional navigation system 1 Selection list, such as for the radio Navigation display Speed limit detection Computer 2 Transmission displays 3 Service requirements Messages ...

Opening the main menu
Press the button. The main menu is displayed The main menu is displayed. All iDrive functions can be called up via the main menu. ...