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. ...

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

Safety switch for the rear
Press the button on the driver's door if children are being transported in the rear. This locks various functions so that they cannot be operated from the rear: safety switch. ...