See also:

Close the windows and glass sunroof
Driving with the glass sunroof and windows open results in increased air resistance and raises fuel consumption. ...

Switching the system on/off
Press the left or right side of the button on the CD/DVD player in the rear for the respective page. Rear entertainment and screens are switched on/off. After switching off the ignition, th ...

The concept
The following can be operated using the buttons and the thumbwheel on the steering wheel: Current audio source. Redial on telephone*. Activation of the voice activation system*. ...