MERCEDES-BENZ R-Class 2006 W251 Comand Manual
Page 81 of 242
79 Audio
MP3 CD operation
Backward
Press d. 
If the track has been playing for more 
than approx. 10 seconds, the track is 
replayed from the start. If the playing 
time is shorter, the previous track is 
played.
With the number keypad
The tracks of the current folder can be 
selected with this function.
Activate the MP3 main menu 
(
page 75).
In short succession, press button * 
and the number key of the desired 
track, e.g. 8.1Number of tracks in the current folder 
(10 tracks)
After your entry the selected track is 
played and visible.Using MP3 track scan
The tracks of the current folder can be 
scanned one after the other for 8 seconds 
each. Subfolders are not considered.
The function will switch off automatically 
when the beginning track is reached.
You can also manually stop the scan 
search.
Starting the scan search
Activate the MP3 main menu 
(
page 75).
Press the Scan soft key.
i
If the current folder contains less than 
10 tracks, the system will only recogni-
ze the first digit entered and play the 
appropriate track.
i
When you start the scan search, the 
playback mode 
Normal sequence 
(page 81) is automatically activated. 
Page 82 of 242
80 Audio
MP3 CD operation
Ending the scan function
Scan search is running.
Press the Scan soft key.
or
Press E.
The last scanned track is played.
Activate the MP3 main menu 
(
page 75).
Press and hold g or h.
To stop release g or h.On
Press J during playback.
The CD operation is stopped and theß 
symbol is displayed in the status bar. 
The soft keys on the left side are 
greyed out in the MP3 main menu.
Off
Press J again.
Playback will resume.
The ß disappears from the status bar. 
The soft keys on the left side are 
selectable again.The following options are available:
Normal sequence (page 81)
CD mix (page 81)
Repeat track (page 81)
Repeat folder (page 81)
Fast forward/reverse
Mutingi
COMAND will also deactivate mute if 
you
press A to select another audio 
source
change the volume
press either g or h.
Playback options 
Page 83 of 242
81 Audio
MP3 CD operation
Changing the playback option
E.g.:
Option 
CD mix
Activate the MP3 main menu 
(
page 75).
Press the Setting soft key.
Setting menu
Push the joystick to g or G to 
select the playback mode 
CD mix.
Press E.
The option is activated. The MP3 main 
menu will reappear.
Explanation of the playback options
Normal sequence (normal setting)
The tracks of the current folder are 
played in alphabetical order.
If the current folder contains sub-
folders:
The sub-folders and their tracks are 
played in alphabetical order.
CD mix 
All tracks of the MP3 CD are played in 
random order.
Repeat track 
The system repeats the current track 
until you switch the function off.
Repeat folder
The system repeats the tracks of the 
current folder until you switch the 
function off.
OptionSymbol
Function active_ 
Function not active- 
i
After selecting, the following playback 
options are displayed on the status bar. 
Page 84 of 242
82 Audio
AUX operation
 AUX operation
An external audio source can be 
connected to the COMAND via the 1/8" 
socket located inside the glovebox.
M class illustrated
11/8“ socket
Open the Audio menu (page 42).
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.
AUX menu
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 38)i
Vehicles equipped with a Rear Seat En-
tertainment* (
page 87) system do 
not include the 1/8" AUX socket. The 
audio signal from the Rear Seat Enter-
tainment* system is the permanent 
AUX source.
i
For instructions on how to operate the 
external audio source, please see the 
operation manual of the device con-
nected.  
Page 85 of 242
83 Rear Audio/Video*
Rear Audio operation*
Rear Seat Entertainment (RSE) operation* 
Page 86 of 242
84 Rear Audio/Video*
Rear Audio operation*
 Rear Audio operation*
Both 1/8" sockets 1 are located in the 
Rear climate control panel at the back of 
the center console. You can connect one 
headset to each socket.
1Two 1/8“ sockets
Gently push the headset connector into 
the socket 1.
The following functions are available when 
using the Rear Audio feature
Select the audio source
Switch off
Adjust headset volume
Mute
WarningG
The driver should not operate any of the 
Rear Audio features at the Rear climate 
control panel while driving the vehicle under 
any circumstances. These features can 
distract the driver from traffic conditions 
and should only be operated by the rear seat 
occupants.
Similarly, the driver should not wear a Rear 
Audio headset while operating the vehicle 
under any circumstances. The use of a 
headset while driving the vehicle could 
drastically impair the ability to react to 
audible traffic conditions (e.g. emergency 
sirens from police/fire/ambulance, another 
drivers horn, etc).
WarningG
When not in use, headsets should be stored 
in a safe location (e.g. one of the vehicle’s 
storage compartments) so that they are not 
loose within the passenger compartment 
during braking, vehicle maneuvers or a 
traffic accident. Objects moving within the 
passenger compartment could cause 
serious personal injury to vehicle 
occupants.
WarningG
Due to a potential choking hazard, wired 
headset usage by children should only occur 
with adult supervision.
i
Only use 32 Ohm headsets.
For further information please contact 
an authorized Mercedes-Benz Center.
Connecting headsets 
Page 87 of 242
85 Rear Audio/Video*
Rear Audio operation*
At the COMAND open the Audio menu 
(
page 42).
Press the Rear soft key.
The Rear menu will appear.
Rear menu
Push the joystick to g or G to 
select the audio source you want.
Press E.
The audio source is selected. Playback 
begins.
Selecting the audio source
i
You can select different audio sources 
for the COMAND and the Rear Audio 
operation*. The selected audio source 
for the COMAND will playback through 
the speakers while the selected audio 
source for the Rear Audio will playback 
through the headset(s). The Rear Audio 
source is the same for both headset 
sockets.
i
The factory setting is Off _, so you 
can not hear an audio source via the 
headset.
If a MP3 CD is loaded into the CD drive, 
MP3 will appear instead of CD.
The 
CD and SAT options are 
available if a CD changer* and a 
satellite radio* equipment (with 
subscription to satellite radio service 
provider) are connected to the 
COMAND.
i
In vehicles equipped with a Rear Seat 
Entertainment* system (
page 87) 
the audio signal from the Rear Seat 
Entertainment system is the 
permanent AUX source.
i
An audio source, e.g. CD for CD 
drive, will appear greyed out, if e.g. 
there is no CD loaded in the slot.
Loading a CD (
page 53).
i
Voice instruction during route 
guidance, telephone ringing or a 
caller’s voice is not heard via the 
headset. 
Page 88 of 242
86 Rear Audio/Video*
Rear Audio operation*
Push the joystick g or G to select 
Off.
Press E.
The Rear Audio operation* is switched 
off. 
To switch on again, select an audio 
source and press E.
If the position of the volume knob 1 is 
in, push it in and then release.
Turn the knob to the desired volume 
level.
1Two volume knobs
Switching off
Adjusting the volume
i
Both volume knobs are located in the 
Rear climate control panel at the back 
of the center console. There are two 
possible positions for each knob, in or 
out. Neither position has an effect on 
the audio signal to the headset.  
Volume adjustment is only possible 
when the knob is out. 
Page 89 of 242
87 Rear Audio/Video*
Rear Seat Entertainment (RSE) operation*
 Rear Seat Entertainment (RSE) operation*
WarningG
The RSE CD/DVD player is a Class 1 laser 
product. There is a danger of invisible laser 
radiation when you open or damage the co-
ver.
Do not remove the cover. The RSE CD/DVD 
player does not contain any parts which can 
be serviced by the user. For safety reasons, 
have any necessary service work performed 
by qualified personnel.
WarningG
When not in use, headsets or external video 
sources should be stored in a safe location 
(e.g. one of the vehicle’s storage 
compartments) so that they are not loose 
within the passenger compartment during 
braking, vehicle maneuvers or a traffic 
accident. Objects moving within the 
passenger compartment could cause 
serious personal injury to vehicle 
occupants.
WarningG
Due to a potential choking hazard, wired 
headset usage by children should only occur 
with adult supervision. 
Page 90 of 242
88 Rear Audio/Video*
Rear Seat Entertainment (RSE) operation*
Permissible CDs/DVDs
The following file and disc formats can be 
played in the RSE CD/DVD player:
CD-ROM, CD-R and CD-RW containing 
CDDA files with title text and/or MP3 
files with ID3 tags.
DVD-ROM, DVD-R (up to 3.95 GB sto-
rage) containing DVD video content.
Tips on caring for your CDs (
page 53) 
and (
page 71)
Tips on creating MP3 CDs (
page 71)
Tips on copyright (
page 73)
Tips on caring for your DVDs (
page 89)
General information on CD/DVD 
operation
i
Your RSE CD/DVD player has been de-
signed to play CDs/DVDs which corres-
pond to the IEC 60908 standard. You 
can therefore only use CDs with a maxi-
mum thickness of 1.3 mm.
If you insert thicker data carriers, e.g. 
ones that have data on both sides (one 
side with DVD data, the other side with 
audio data), they cannot be ejected and 
will damage the drive. 
i
CDs, software and hardware for writing 
data to CDs vary widely. Therefore, we 
cannot guarantee that the system will 
be able to play every user-written CD.
i
The system may not be able to play 
copied CDs or those with copy 
protection.
!
Do not attach labels of any type to the 
CD. They may become detached and 
damage the drive.
!
Do not play single CDs (80mm) with an 
adapter. An adapter could become 
stuck and damage the drive. Only use 
12 cm diameter CDs.