The mbrace system
The mbrace system provides different services, e.g.:
- automatic and manual emergency call
- Roadside Assistance call
- MB Info call
To adjust the volume during an mbrace call, proceed as follows:
•► Press the 
button on the
multifunction steering wheel.
or
•► Use the volume controller of COMAND.
You can find further information and a description of all available features under "Owners Online" at http:// www.mbusa.com.
See also:
Problems with the SmartKey
Problem
Possible causes/consequences and
Solutions
You cannot lock or unlock the vehicle using
the SmartKey.
The SmartKey battery is discharged or nearly discharged.
...
Service menu
In the Serv. menu you can:
- call up display messages
- restart the tire pressure loss warning system (Canada only)
- check the tire pressure electronically
- call up the service due date ...
Important safety notes
See the "Important safety notes" section ().
If ESP® detects that the vehicle is deviating from the direction desired by the
driver, one or more wheels are braked to stabilize the vehi ...