Supplementary text messages
Addition information, such as on the cause of a fault or the required action, can be called up via Check Control.
In urgent cases, this information will be shown as soon as the corresponding lamp comes on.
Symbols
The following functions can be selected within the supplementary text message, depending on the Check Control message.
▷ 
"Service request"
Contact the service partner.
▷ 
"Roadside
Assistance"
Contact Roadside Assistance.
See also:
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not available in a vehicle, ...
Switching off automatically
The system switches off and the LED goes out:
After approx. 160 ft/50 m when driving forward.
Above approx. 22 mph/36 km/h when driving
forward.
Switch on the system again if necessary. ...
Treble, bass, balance, and fader
▷ "Treble": treble adjustment.
▷ "Bass": depth adjustment.
▷ "Balance": left/right volume distribution.
▷ "Fader": front/rear volume ...