See also:

Controls
Controls 1 Volume, on/off 2 Eject CD/DVD 3 CD/DVD drive 4 Change the entertainment source 5 Change station/track 6 Programmable memory buttons ...

Context help - Owner's Manual to the temporarily selected function
The relevant information can be opened directly. Opening during operation via iDrive To move directly from the application on the Control Display to the options menu: 1. Press the button or mo ...

Maintenance
The battery is maintenance-free, i.e., the electrolyte will last for the life of the battery. Your service center will be glad to advise you on questions regarding the battery. ...