See also:

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

Reading lamps
Press the button. Reading lamps are located at the front and rear next to the interior lamps. With the interior lamps shut off, the reading lamps cannot be switched on. ...

Setting the language
Press and hold the control button for approx. 12 to 13 seconds. Briefly press the control button again to switch between English "E" and German "O". The setting is stored au ...