See also:

Operation
Adjusting the volume Turn the knob until the desired volume is reached. The setting is stored for the remote control currently in use. The vehicle automatically adjusts the volume of the microphon ...

Controls
1 Screen, left 2 Screen, right 3 Center armrest, remote control 4 CD/DVD player ...

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. ...