See also:

Switching off automatically
The system switches off and the LED goes out: After approx. 33 ft/10 m when driving forward. Above approx. 9 mph/15 km/h when driving forward. Switch on the system again if necessary. ...

Notes
Switch off the engine before refueling Always switch off the engine before refueling; otherwise, fuel cannot be added to the tank and a message will be displayed.◀ Observe when handlin ...

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