See also:

Messages after trip completion
Special messages that are displayed during driving are displayed again after the ignition is switched off. ...

Switching the interior lamps on and off
Press the button. To switch off permanently: press the button for approx. 3 seconds. Switch back on: press button. ...

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