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:
DEF
Important safety notes
For BlueTEC vehicles only.
DEF is a non-flammable, non-toxic, colorless,
odorless and water-soluble fluid.
Only use DEF that complies with
ISO 22241. Do not add any ...
Cleaning genuine wood and trim
elements
– Wipe the wooden trim and trim pieces with
a damp, lint-free cloth, e.g. a microfiber
cloth.
– Heavy soiling: use car care and cleaning
products recommended and approved by
Mercedes-Benz.
...
Changing batteries
Batteries are required for the remote control
and for the two sets of cordless headphones.
Changing batteries. ...