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 
or
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:
Useful information
This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences ...
Socket in the rear-compartment center console
Pull cover 2 out by its top edge. X Lift up the cover of socket 1.
...
Downhill gradients
On long and steep gradients, you must reduce the load on the brakes by shifting
early to a lower gear. This allows you to take advantage of the engine braking effect
and helps avoid overheating ...