Page 18 of 195
17 At a glance
CD changer operating elements
The CD changer is located in the glove box.
Open the glove box to access the CD
changer.Loading CDs into the CD changer ( page
59)
.
The CD changer can accomodate up to 6
audio or MP3 CDs.
Function
Page
1
Audio menu
46
2
Soft keys(multifunction keys)
3
Color screen with CD
changer main menuThe status bar indicates
CD status information
6161
4
1 - 6Selecting an audio CD or
MP3 CD1 - 0, *Track select
63, 64
64
5
Push the joystick to
H and hSelecting an audio CD or
MP3 CDPush the joystick to
g and GTrack selectSelecting an audio CD or
MP3 CDPress E to confirm
636464
6
JMuting
67
7
Volume control
35
8
e Switching on and off
34
Function
Page
Function
Page
9
d and DTrack selectFast forward/reverse
6466
209_MY09_A_US.book Seite 17 Montag, 26. Mai 2008 6:12 18
Page 60 of 195

59 Audio
CD changer operation
CD changer operation
The CD changer can play audio or MP3
CDs. When playing MP3 CDs, only the first
99 tracks will be played in succesive order.
After that, playback will begin with track 1
of the MP3 CD. Folder selection is not
possible.Multi session CDs include mixed file types
(e.g. MP3 and audio CD) in either succes-
sive or random order on the disc. Audio
tracks will be played back first, followed by
MP3 tracks until 99 tracks are reached.Refer to additional MP3 information:
Permissible MP3 CDs
( page
71)
Permissible file systems
( page
71)
Permissible MP3 formats
( page
73)
Permissible bit and scan rates ( page
73)
Refer to additional CD information ( page
55)
.
Activate the CD changer main menu ( page
61)
.
or
Load a CD into the CD changer.
The CD changer is located in the glove box.
Open the glove box to access the CD
changer.The CD changer can accomodate up to 6
audio or MP3 CDs.
Switching to CD changer modeLoading CDs into the CD changerWarning
G
In order to avoid distraction which could
lead to an accident, the driver should insert
CDs with the vehicle at a standstill and
operate the audio system only if permitted
by road, weather and traffic conditions.Bear in mind that at a speed of just 30 mph
(approximately 50 km/h), your car covers a
distance of 44 feet (approximately 14 m)
every second.
209_MY09_A_US.book Seite 59 Montag, 26. Mai 2008 6:12 18
Page 62 of 195

61 Audio
CD operation
CD operation
Playback locations for audio CDs are:
the CD drive in the COMAND
the CD changer.
CD driveCD changer
In the Audio menu
( page
46)
, press
the
CD
or the
CD
soft key.
CD changer main menu1CD number or name of the CD currently
playing2Track number or name of the track
currently playing 3CD
- CD changer
CD
- CD drive
Actual track number/max. track
number on CD and elapsed playback
time
4Symbol for inserted CD
Switching to CD operationiThe CD drive is located behind of the
display unit
( page
57)
.
iThe CD changer can accomodate up to
6 audio or MP3 CDs. The CD changer is
located in the glove box.If a CD changer is connected to the
COMAND, the
CD
soft key is
available.
iThe
Magaz.
soft key is only assigned
when the CD changer is active.
If the CD changer has already read the
magazine, the Magazine menu will
appear
( page
64)
when you press the
Magaz.
soft key.
Otherwise the message
Magazine scan
Please wait
will appear first.
209_MY09_A_US.book Seite 61 Montag, 26. Mai 2008 6:12 18
Page 83 of 195

82 AudioAUX operation
AUX operation
An external audio source can be
connected to the COMAND via the 1/8"
socket located inside the glovebox.11/8 inch socket
Open the Audio menu
( page
46)
.
Press the
AUX
soft key.
The AUX menu is displayed. The exter
-
nal audio source is played back if it is
connected and switched to playback.
At the COMAND, you can set the following
for the AUX operation:
Volume
( page
34)
Balance control and fader
( page
36)
Bass and treble control
( page
37)
Sound functions
( page
37)
iFor further information please contact
an authorized Mercedes-Benz Center.
iFor instructions on how to operate the
external audio source, please see the
operation manual of the device con
-
nected.
iThe volume of external audio sources
varies. Therefore, the volume level of a
connected external audio device may
be higher or lower than expected or the
usual maximum volume cannot be
achieved. On certain devices the
volume can be set separately. In this
case, start at a moderate volume and
increase it slowly. In this way you can
determine whether the system is
capable of playback without distortion,
even at high volume.
209_MY09_A_US.book Seite 82 Montag, 26. Mai 2008 6:12 18