See also:

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

General information
The sound settings are stored for the remote control currently in use. ...

Headlamp range control
With halogen headlamps, the headlamp range of the low beams can be manually adjusted for the vehicle load to avoid blinding oncoming traffic. The values following the slash apply to trailer ope ...