See also:

Remote control
Each remote control contains a rechargeable battery that is automatically recharged when it is in the ignition lock while the car is being driven. Use each remote control at least twice a year f ...

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

Deactivating HDC
Press the button again and the LED goes out. HDC is automatically deactivated above approx. 37 mph/60 km/h. ...