MERCEDES-BENZ R-Class 2008 W251 Comand Manual
Page 61 of 232
61 Audio
CD changer* operation
Ejecting all CDs
1CD changer* release button
2CD slot
3Magazine compartment buttons
Access the CD changer* (page 57).
Press and hold the button of a loaded 
magazine compartment 3 for more 
than 2 seconds.
The button LEDs of all loaded magazine 
compartments will briefly flash red, 
several times.
The CD changer* ejects the CDs one 
after another.
Within 15 seconds, remove each CD 
from the slot 2.The CD will be pulled in again if it is not 
removed from the slot within 
approx.15 seconds. The system starts 
playing the CD again. 
The ejection procedure is completed 
when all CDs are removed, or when the 
procedure is aborted by the CD 
changer*.
Retract the CD changer* (
page 57). 
Page 62 of 232
62 Audio
CD changer* operation
Accessing 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 accommodate up to 
6 audio or MP3 CDs.
Removing the magazine:
Slide the cover 1 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.
CLK-Class CD changer*
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 63 of 232
63 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 44), press 
the 
CD or the CD 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 the 
display unit (
page 55).
i
The CD changer* can accommodate 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 
CDs, the Magazine menu will appear 
(
page 66) when you press the 
Magaz. soft key.  
Page 64 of 232
64 Audio
CD operation
CD drive
Activate the Audio menu (page 44).
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 54).
CD main menu
CD changer*
Activate the Audio menu (page 44).
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 or MP3 CD is played 
back.
No CD in the CD changer*:
The message 
Magazine empty will 
appear.
Load audio or MP3 CDs into the CD 
changer* (
page 57).
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 65 of 232
65 Audio
CD operation
You can select a audio or MP3 CD:
in the CD list (page 65)
with the number keypad (page 65)
in the magazine menu (page 66)
In the CD list
The 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 <number> is displayed.
After the CD is loaded, playback 
begins. With the number keypad
Press a number key, e.g. 2 to select 
the corresponding CD.
Loading CD 2 is displayed.
The CD is changed. The selected CD is 
played back.
The message 
No CD <number> will 
appear if a selected slot is empty.
Selecting a CD (CD changer* only)
i
Selection is only possible if at least two 
audio or MP3 CDs have been loaded 
into the changer.
i
The number keys 1 - 6 can be used 
for direct selection.
Keys
 1 - 6  magazine slots 1 to 6 
of the CD changer* 
Page 66 of 232
66 Audio
CD operation
In the Magazine menu
Press the Magaz. soft key.
The Magazine menu is displayed.
Push the joystick to g or G to 
select a CD.
Press E.
or
Press one of the number keys 1 to 
6.
The CD is changed. The message 
Loading CD <number> will appear.
You can select a track:
with g or h (page 66)
with the joystick (page 66)
with the number keypad (page 67)
with CD track scan (page 67)
With g or h
Activate the main CD menu 
(
page 63).
Next track
Press h.
The next track is played.Previous track or start of title (if more 
than 10 seconds of playing time has 
elapsed)
Press g.
Playback begins.
Select any desired track
Press g or h as many times as 
necessary.
With the joystick
Push the joystick to g or G to play 
the next or previous track.
i
The name of the CD instead of e.g. CD1 
is displayed if the information is 
available.
Track select 
Page 67 of 232
67 Audio
CD operation
With the number keypad
Activate the CD main menu 
(
page 64).
Press *.
An input line will appear in the CD main 
menu.
1Number of tracks on CD corresponds 
with the valid number range
2Input line
E.g.: Track 14.
Press 1 and 4 in short succession.
After entering the track number, wait 
approximately 3 seconds.
The selected track is played. The CD 
main menu is displayed.
CD track scan
The tracks on a CD can be scanned one 
after the other for 8 seconds each. The 
function will switch off automatically when 
the starting track is reached. You can also 
manually stop the scan function.Activating
Press the Scan soft key.
Scan will begin.
i
Entries higher than the number of 
tracks available on the CD are not 
possible.
During MP3 CD playback
CD drive
You can select the tracks of the 
current folder (
page 78).
CD changer*:
You can select the first 99 tracks of 
a MP3 CD.
i
When you start the scan function, the 
playback mode 
Normal sequence 
(
page 69) is automatically activated. 
Page 68 of 232
68 Audio
CD operation
Ending the function
Scan search is running.
Press the Scan soft key.
or
Press E. 
Playback will resume with the desired 
track.
Fast forward
Press and hold h for more than 2 
seconds.
Fast reverse
Press and hold g for more than 2 
seconds.
Ending the function
Release h or g.
Playback will resume.On
Press J during playback.
The CD operation is muted and theß 
symbol is displayed in the status bar. 
The soft keys on the left side are 
greyed out in some submenus.
Off
Press J again.
Playback will resume.
The ß disappears from the status bar. 
The soft keys on the left side are 
selectable again.
Fast forward/reverse
Mutingi
COMAND will also deactivate muting if 
you
Press A, B, g, h
Change the volume at COMAND or 
the multifunction steering wheel
Operate the joystick
Press any keypad button except #
Press j or k at the 
multifunction steering wheel if the 
audio menu is selected. 
Page 69 of 232
69 Audio
CD operation
The following options are available:
Normal sequence (page 69)
Track mix (page 69)
CD mix (page 69)
Repeat track (page 70)
Repeat CD (page 70)
Activating playback mode
E.g.:
Mode 
Repeat track 
Press the Setting soft key.
The setting menu will appear.
CD changer* setting menu
Push the joystick to g or G to 
select the playback mode 
Repeat 
track
.
Press E.
The mode is activated. The CD 
changer* main menu will then appear. 
REPEAT TRACK will appear in the 
status bar.Explanation of the playback modes
Normal sequence
Tracks are played in ascending order 
(e.g. 1, 2, 3 and so on). If just one CD is 
inserted, the first track is played when 
the last one is over. 
If more than one CD is available, the 
first track of the next CD is played 
when the last track of the current CD is 
over. The CDs are changed in normal 
order.
Track mix
Tracks are played in random order. If 
more than one CD is available, the next 
available CD is played when the current 
CD is over. The CDs are changed in 
normal order.
CD mix (CD changer* only)
At least 4 tracks of any CD are played 
in random order. Then follows the next 
available CD. The CDs are changed in 
random order.
Playback mode
i
If the CD changer* is connected, the 
playback modes 
Repeat CD and 
CD mix are available additionally.
i
The playback mode Normal sequence 
is not displayed in the status bar. 
Page 70 of 232
70 Audio
CD operation
Repeat track 
The system repeats the current track 
until you switch the function off.
Repeat CD (CD changer* only)
The system repeats the current CD 
until you switch the function off.View track detail
At any time during playback an expanded 
view of a track title can be displayed in the 
CD main menu via a separate window.
Press the Detail soft key.To cancel
Press the Detail soft key again.
or
The window will automatically disappear in 
approx. 5 seconds.