See also:

Adjusting the volume
1. "CD/Multimedia", "Radio" or "Settings" 2. "Tone" 3. "Volume settings" 4. Select the desired volume setting. Select the desired volume setting ...

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. ...

Requirements
Via the Control Display, set a language that is also supported by the voice activation system so that the spoken commands can be identified. Set the language. ...