See also:

Sound output
Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...

Switching on/off manually
Press the button. On: the LED lights up. Off: the LED goes out. The PDC is shown on the Control Display. Switch on the backup camera via the iDrive. ...

Context help - Owner's Manual to thetemporarily 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 move ...