See also:

Switching the interior lamps on and off
Press the button. To switch off permanently: press the button for approx. 3 seconds. To clear this setting: press the button. ...

Controls
Controls 1. Press: switch the DVD system on/off Turn: left headphone volume and vehicle volume 2. Eject CD/DVD 3. Beginning of track     Stop     Play ...

Maintaining/storing the speed
Press the button. When the system is switched on, the current speed is maintained and stored as the desired speed. It is displayed in the speedometer and briefly displayed in the instrument c ...