Page 199 of 270

Connecting a USB device
The USB port is located in the stowage com-
partment in the center console.
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).
X Connect the USB device (e.g. USB stick) to
the USB port.
If no MP3 tracks can be found, you will seea message to this effect.
The first 100 MP3 tracks are loaded. The
first MP3 track is then played. Further
tracks are loaded in the background; this is
indicated by an hourglass symbol.
i Due to the wide range of USB devices
available on the market, playback cannot
be guaranteed for all brands of USB device.
Information about suitable USB devices
can be obtained from an authorized
Mercedes-Benz Center.
MP3 players must support Media Transfer
Protocol (MTP). The MTP mode must be
active. Switching to audio CD or MP3 mode
Inserting or connecting a medium X
Insert CDs (Y page 196)
or
X Insert an SD memory card (Y page 196)
or
X Connect a USB device (Y page 197).
COMAND loads the medium inserted and
starts to play it.
Switching on using the button X
Press the 003Abutton one or more times. By pressing the
003Abutton repeatedly, you
can switch modes in the following order:
R
R CD/video DVD/MP3 CD/MP3 DVD in the
single DVD drive (disc mode)
R Memory card mode
R MUSIC REGISTER
R USB storage device
R Media Interface or audio AUX mode
R Bluetooth ®
audio mode
X Select an audio medium from the media list
(Y page 198).
Switching modes via the audio menu X
Select Audio Audioin the main function bar by
sliding 00970052and turning 00790052007Athe COMAND
controller and press 0098to confirm.
The last active audio source is now activa-
ted.
You can activate a different audio source
using the audio menu.
X Select Audio Audioby sliding 00970052and turning
00790052007Athe COMAND controller and press 0098
to confirm.
The audio menu appears.
X Select Disc Disc,Memory
Memory Card
Card,Music
Music Regis‐
Regis‐
ter
ter ,USB Storage
USB Storage orMedia Interface
Media Interface
and press 0098to confirm.
This switches to the desired audio source.
X Select an audio medium from the media list
(Y page 198). Audio CD and MP3 mode
197Audio Z
Page 234 of 270

If your vehicle is equipped with Media Inter-
face, you can connect an external video
source (AUX video) (Y page 217).
The 1/8 inch audio/video jacks are in the
center console stowage compartment.
i In vehicles with a rear view camera, the
AUX video jack cannot be used for external video sources. Switching to AUX video mode
AUX video mode
X Press the 003Afunction button repeatedly
until Media Interface mode is selected.
or X Select Video
Videoin the main function bar by
turning 00790052007Athe COMAND controller and
press 0098to confirm.
If AUX video mode was the last mode selec-
ted, it will now be active.
If another video source is switched on, you can now switch to AUX video mode in the
video menu.
X Select Video
Video and press 0098to confirm.
X Select Aux
Aux and press 0098to confirm.
The AUX video menu appears. You will hear
and see the content of the external video
source if it is connected and switched to
playback. Showing/hiding the menu
X To show: in video AUX mode, press 0098the
COMAND controller.
X To hide: slide00970052the COMAND controller
and confirm Full Screen Full Screen by pressing0098. Volume and sound settings
Information on:
R Volume settings (Y page 29)
R Sound settings (Y page 30)
i A device which is connected as an exter-
nal video source may seem quieter or
louder in the vehicle, or the usual maximum
volume cannot be achieved. On some devi-
ces, it is possible to adjust the volume sep-
arately. In this case, start at a medium vol- ume and increase it gradually. This enables
you to determine whether the system is
able to play the sound at high volume with-
out distorting it. Increasing the volume on COMAND
X Show the video AUX menu (Y page 232).
X Select Volume
Volume by turning 00790052007Athe
COMAND controller and press 0098to con-
firm.
A menu appears. The 003Bdot indicates the
current setting.
X Select Standard Standard orBoost
Boost and press 0098to
confirm.
Standard Standard: the volume of the external video
source is adjusted to a standard value.
Boost Boost: the volume of the external video
source is raised by approximately 10 dB. Picture viewer
Introduction
If there are pictures on the active data
medium, you can look at them. You can dis- 232
Picture viewerVideo
Page 246 of 270

Setting the brightness
X Select Settings
Settings using the0064button
and press 008Bto confirm.
X Select Brightness
Brightness using the00630064
buttons and press the 008Bbutton to confirm.
A scale appears.
X Adjust the brightness using the 00630064
buttons and press the 008Bbutton to confirm.
The brightness bar moves up or down. The picture becomes lighter or darker in
accordance with the scale. Showing/hiding the picture
X To hide the picture: selectDisplay Off Display Off
in the system menu using the 00640065
buttons on the remote control and press
the 008Bbutton to confirm.
The picture is hidden.
X To display the picture: press the008Bbut-
ton. CD/audio DVD and MP3 mode
Important safety notes
G
WARNING
The CD/DVD drive is a class 1 laser product. If you open the housing of the CD/DVD drive,
there is a risk of exposure to invisible laser
radiation. This laser radiation could damage
your retina. There is a risk of injury.
Never open the housing. Always have main-
tenance and repair work carried out at a quali- fied specialist workshop. General notes
You will find information on the following top- ics in the Audio section:
R notes on CDs/DVDs (Y page 204)
R notes on MP3 mode (Y page 202)
R notes on copyright (Y page 204) Inserting a CD/DVD
0043
Disc slot
0044 Disc eject button
Depending on the vehicle model and equip-
ment level, the CD/DVD drive is found:
R behind the center console in a folding com-
partment, or
R under the rear bench seat, or
R in the stowage box between the rear seats
The CD/DVD drive is a single disc drive. If
there is already a disc inserted, this must be
ejected before another is inserted.
X Insert a disc into the disc slot.
The printed side of the disc must face
upwards. If neither side of the disc is prin-
ted, the side you wish to play must face
downwards.
The CD/DVD drive draws in the disc.
The CD/DVD drive plays the disc:
R if it has been inserted correctly and is a
permissible disc, and
R after you have switched to disc mode
(audio CD/audio DVD/MP3 mode)
(Y page 245)
Data on an MP3 CD first needs to be loaded by the drive. Loading may take some time,
depending on the number of folders and
tracks. 244
CD/audio DVD and MP3 modeRear Seat Entertainment System