Separate USB connection
In addition to the USB connection on the Media Interface, there is another USB connection in the glove box. This connection can also be used to play audio files.
Electrical consumption at this connection must not exceed a continuous current of 500 mA. If the electrical consumption is higher, use a separate source to provide power for the USB device (e.g. 12 V power supply).
To select music from the USB port as
the audio source: select Audio by sliding
and turning
the COMAND
controller and press 
to confirm.
The audio menu appears.
Select USB and press to
confirm.
See also:
Charging the battery
WARNING
Never charge a battery still installed in the
vehicle unless a battery charger unit approved
by Mercedes-Benz is being used. Gases may
escape during charging and cause explosions
...
System self-test
The indicator lamp
illuminates when you:
• turn the SmartKey to position 1 or 2 in the
ignition lock
• Rpress the KEYLESS-GO Start/Stop button
once or twice
If an adult occupant is properly s ...
General notes
USA only:
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
1. This device may not cause harmful
interference, and
2. this device must ...