See also:

Controls
Controls 1 Display screen 2 Infrared interface for headphones 3 CD/DVD player 4 Headphone connection: jack plug 5 12 V sockets ...

Volume
▷ "Speed volume": speed-dependent volume control. ▷ "PDC": volume of the PDC signal compared to the entertainment sound output. ▷ "Gong": volume o ...

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. ...