See also:

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

Adjusting the volume
Turn the knob until the desired volume is selected. The setting is stored for the remote control currently in use. The vehicle automatically adjusts the volume of the microphone on the telephon ...

Display on the Control Display
The traffic area to the left and right is displayed on the Control Display. Guidelines at the bottom of the image show the position of the front of the vehicle. Brightness With the Side View ...