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:
Display in the instrument cluster
The selected speed is displayed
in the speedometer.
Green: the system is actively
braking the vehicle.
Orange: the system is on
standby.
...
Adjusting the volume
Turn the knob until the desired volume is selected.
The setting is stored for the remote control
currently in use.
The vehicle automatically adjusts the volume of
the microphone on the telepho ...
Switching on/off
Press the button. ...