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:
Digital speedometer
Press the or
button on the steering wheel to
select the Trip menu.
Press or
to select the digital speedometer.
...
Before changing a fuse
Park the vehicle and apply the electric
parking brake.
Switch off all electrical consumers.
Remove the SmartKey from the ignition
lock.
The fuses are located in various fuse boxes:
• fuse ...
Lights
Display messages about LEDs:
This display message will only appear if all LEDs have failed.
Display messages
Possible causes/consequences and •► Solutions
Check Left
Corneri ...