Page 53 of 202
51 Audio
CD operation
Avoid touching the CD surface with
your fingers.
Clean the CD with a dry, lint-free cloth.
Wipe them from the inside to the outer
edge. Never wipe the CD in a circular
motion.
Do not use rubbing alcohol or solvents
to clean the CDs.
Do not expose the CDs to heat or direct
sunlight.
Do not write or put stickers on CD.Loading a CD into the CD drive
Tips on caring for your CDsLoading a CD
WarningG
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.
i
There are two l buttons. One is on
the display unit. The other is located
left of the CD AUDIO slot behind the
display, see next page.
i
The CD drive can acommodate either
audio or MP3 CDs (
page 65).
Page 54 of 202
Page 55 of 202

53 Audio
CD operation
1Ejecting audio CD
2Opening/closing the display unit
3Warning message
Press EJECT to
close
With the COMAND switched on, press
l.
The display unit moves forward and
then tilts down. The CD AUDIO slot is
visible.
Press the l button left of the
CD AUDIO slot to eject a CD already
loaded.
Remove the CD from the slot.
Insert a CD into the slot. The CD should
be inserted with the label side up.
The COMAND pulls the CD in.
Press l on the display unit to return
the display unit to its closed position.
The display unit tilts up and then moves
to the rear.
Playback begins with track number
one.
The message
CD error will appear if
there is a media error.
Remove the CD or switch to
another operation.
WarningG
The display unit can cause injury if
contacted when open. Please close after
inserting an audio CD.
!
Do not place anything on the lowered
display panel (i.e. do not attempt to use
as a shelf). Placing objects on the
lowered display panel may result in
damage to the display or COMAND
unit which is not covered by the
Mercedes-Benz Limited Warranty.
i
Inserting a second CD with another CD
still loaded will cause damage to the
CD drive which is not covered by the
Mercedes-Benz Limited Warranty.
i
The message Press EJECT to
close
will appear. If l on the
display unit is not pressed within 20
seconds, eight successive series of two
beep tones will sound to remind you to
return the display to its closed position
by pressing l on the display unit.
After the beep tones COMAND returns
the display unit to its closed position.
Page 56 of 202

54 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
t r a c k s w i l l b e p l a y e d b a c k f i r s t , f o l l o w e d b y
MP3 tracks until 99 tracks are reached.
Refer to additional MP3 information:
Permissible MP3 CDs (page 66)
Permissible file systems (page 66)
Permissible MP3 formats (page 68)
Permissible bit and scan rates
(
page 68)
Refer to additional CD information
(
page 50).
Activate the CD changer* main menu
(
page 56).
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* mode
Loading CDs into the CD changer*
WarningG
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.
Page 57 of 202
55 Audio
CD changer* operation
Removing the magazine:
Slide the cover of the CD changer*
open.
1Cover of the CD changer*
2l button
3Magazine
Press the l button on the
CD changer*.
The magazine will slide out. The
message
No magazine will appear on
the COMAND.Inserting CDs:
Pull the disc tray forward until it stops.
If necessary, remove CDs already
inserted.
Place a CD in the tray. The CD should
be inserted with the label side up.
Push the CD tray into the magazine
completely.
Repeat these three steps to load more
CDs into the magazine.Reading the magazine in:
Slide the magazine into the CD
changer* until it clicks into place
(listen for the click).
Slide the cover of the CD changer*
closed.
i
You can also slide out the magazine if
COMAND is switched off. However, the
l button will not function if the
vehicle battery is not connected or
discharged.
i
When you push the magazine in, the
arrow on the upper side of the
magazine must point in the direction of
the CD changer*.
Page 58 of 202
56 Audio
CD operation
CD operation
Playback locations for audio CDs are:
the CD drive in the COMAND
the CD changer*.
CD drive
CD changer*
In the Audio menu (page 40), press
the
CD or theCD soft key.
CD changer* main menu
1CD number or name of the CD currently
playing
2Track 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 operation
i
The CD drive is located behind of the
display unit (
page 52).
i
The 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.
i
The 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 59) when you press the
Magaz. soft key.
Otherwise the message
Magazine
scan Please wait
will appear first.
Page 59 of 202
57 Audio
CD operation
CD drive
Activate the Audio menu (page 40).
Press the CD soft key.
The CD main menu is displayed.
If no audio CD has been inserted, the
message
No CD inserted will
appear.
Load an audio CD into the CD drive
(
page 51).
CD main menu
CD changer*
Activate the Audio menu (page 40).
Press the CD soft key.
The CD changer* main menu will
appear. The CD last played is played
back.
CD changer* main menu
If the last played CD is not available, the
next available audio CD or MP3 CD is
played back.
No CD in the magazine:
The message
Magazine empty will
appear.
Load audio CDs into the CD changer*
(
page 54).
Switching oni
The name of the CD and the name of
the track played are displayed if the
information is available.
i
The CD soft key is available if a CD
changer* is connected to the
COMAND.
i
The name of the CD and the name of
the track played are displayed if the
information is available.
Page 60 of 202
58 Audio
CD operation
You can select an audio or MP3 CD:
in the CD list (page 58)
with the number keypad (page 58)
in the magazine menu (page 59)
In the CD listThe CD list includes all loaded CDs. Only
one list entry is visible at a time.
The entry is displayed above the track
indication. It shows the number of the CD
currently playing.
Push the joystick to H or h to
select another CD from the list.
Loading CD is displayed.
After the CD is loaded, playback
begins.
With the number keypad
Selecting a CD (CD changer* only)
i
Selection is possible if the
CD changer* has loaded the magazine
(COMAND knows the position of filled
and empty slots) and at least two audio
or MP3 CDs are loaded.
i
The number keys 1 - 6 can be used
for direct selection.
Keys
1 - 6 magazine slots 1 to 6
of the CD changer*