Reception and transmission volume
Once the mobile phone has been authorized,
you can optimize the transmission and
reception volume settings. Find information
on the optimal setting for your mobile phone
on the Internet at
http://www.mbusa-mobile.com. Or call
the Mercedes-Benz Customer Assistance
Center on
1-800-FOR-MERCedes(1-800-367-6372) (for
Incorrect settings may have a significant
impact on the quality of calls.
Press the 
function button.
Select Data/Connections in the
telephone basic menu by sliding 
and
turning 
the COMAND controller and
press 
to confirm.
Select Bluetooth Telephones and press
to confirm.
Select an authorized mobile phone from
the list by turning .
Select Options by sliding 
and press
to confirm.
Select Reception Volume or
Transmission Volume and press
to
confirm.
To set the volume on scale: select by
sliding 
the COMAND controller and
press to confirm.
See also:
Engine
Problem
Possible causes/consequences and
Solutions
The
yellow Check
Engine warning lamp
lights up while the
engine is running.
There may be a malfunction, fo ...
Fast forward/rewind
Press and hold the or
button on
the remote control until the desired
position has been reached.
You see the navigation menu. ...
Engine number
1. Emission control information plate,
including the certification of both federal
and Californian emissions standards
2. Engine number (stamped into the
crankcase)
3. VIN (on the lower edge ...