See also:

Switching DVD system on/off
Press the button on the CD-/DVD player or under the desired screen. The DVD system switches on automatically when a CD or DVD is inserted. ...

Deactivating/activating DTC Dynamic Traction Control
The system can be deactivated/activated via the TRACTION and SPORT+ programs of the Dynamic Driving Control. ...

Tone
Only treble and bass can be set in the rear for headphones. The settings are made separately for the left and right headphones. Operation is the same as for the front tone. ...