See also:

Resetting the tone settings
1. "CD/Multimedia", "Radio" or "Settings" 2. "Tone" 3. "Reset" ...

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. ...