See also:

Deleting all stored programs
Press the two outer memory buttons for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually ...

All around the headliner
All around the headliner 1 Emergency Request 2 Glass sunroof 3 Indicator lamp, front passenger airbag 4 Reading lamps 5 Interior lamps ...

Malfunction
A message is displayed in the instrument cluster. HDC is not available, e.g., due to elevated brake temperatures. ...