MERCEDES-BENZ R-Class 2006 W251 Comand Manual
Page 51 of 242
49 Audio
Radio operation
Saving stations manually (FM, AM)  
In the Radio main menu
Activate the desired wave band 
(
page 44).
Press one of the number keys, e.g. 2, 
longer than 2 seconds.
You will hear a verification beep if the 
beep tones option was activated in the 
system settings (
page 218).
The radio saves the current station at 
the memory preset selected. The me-
mory preset selected will appear in the 
status bar, e.g. 
FM2.On the memory list
Activate the desired wave band 
(
page 44).
Press the Presets soft key.
The memory Preset menu will appear.
Push the joystick to H, h or g, 
G to highlight the desired memory 
preset.
Press E longer than 2 seconds.
You will hear a verification beep if the 
beep tones option was activated in the 
system settings (
page 218).
The current station will be saved at the 
memory preset selected.
You will see the Radio main menu
automatically after 8 seconds
if you press the Back soft key.
i
There are 10 presets available (1 - 
9, 0).
An existing entry is overwritten in the 
memory list when a new input is given. 
Page 52 of 242
50 Audio
Radio operation
Saving stations automatically (FM, AM)
Activate the desired wave band 
(
page 44).
Press the Autost. soft key.
The autostore preset menu will appear.
Press E to start Begin new search.The autostore function is active. The 
message 
Autostore being 
reloaded
 will appear. The radio 
stores the 10 stations with the 
strongest signal. The station 
frequencies available will appear in the 
memory list.
i
There are 2 presets for each of the FM 
and AM waveband
standard FM/AM presets (saving 
stations manually) and 
Auto presets (saving stations 
automatically).
The standard FM/AM presets are not 
affected by the Auto presets. This is a 
second option for storing a station ran-
ge you are currently receiving.
i
There are max. 10 presets available (1 
- 9, 0).
The autostore function assigns the sta-
tions to the memory locations in the or-
der of their reception quality. The 
strongest station is available on 
preset 1. The number of available 
stations depends on the stations avai-
lable in the area the vehicle is operated 
in. 
Page 53 of 242
51 Audio
Radio operation
Selecting a station from the preset 
menu (FM, AM)
Activate the FM or AM memory 
(
page 49).
You can use one of the following two ways 
to select a station from the FM/AM 
presets
Press the corresponding number key, 
e.g. 3, to select the desired station.
or
Push the joystick to H, h or g, 
G to highlight a memory preset in the 
FM/AM preset list (
page 49).
Press E.
In both cases, you will see the main 
radio menu
automatically after 8 seconds
if you press the Back soft key.
The Radio main menu indicating the 
memory preset number.Selecting a station from the FM/AM 
autostore presets
Activate the FM or AM autostore preset 
menu (
page 50).
You can use one of the following two ways 
to select a station from the FM/AM 
autostore presets
Press the corresponding number key, 
e.g. 3, to select the desired station.
or
Push the joystick to H, h or g, 
G to highlight a memory position.
Press E.
In both cases, you will see the main 
radio menu
automatically after 8 seconds
if you press the Back soft key. 
Page 54 of 242
52 Audio
CD operation
 CD operation
General information on CD operation
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.
Health hazardG
The CD drive and CD changer* are Class 1 
laser products. There is a danger of invisible 
laser radiation when you open or damage 
the cover.
Do not remove the cover. The CD drive and 
the CD changer* do not contain any parts 
which can be serviced by the user. For safe-
ty reasons, have any necessary service work 
performed by qualified personnel.
i
Only use CDs, which bear the label 
shown and that conform to the compact 
standard (IEC 60908). You can there-
fore only use CDs with a maximum 
thickness of 1.3 mm.
i
The system may not be able to 
play CDs with copy protection or 
copied CDs.
!
Use only CDs with a diameter of 12 cm, 
do not use 8-cm CDs.
An 8-cm CD adapter may cause dama-
ge to the CD drive and to the CD chan-
ger* and should not be used. 
i
Your CD drive has been designed to 
play CDs which correspond to the IEC 
60908 standard.
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.  
Page 55 of 242
53 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/Ejecting 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 70). 
Page 56 of 242
54 Audio
CD operation
. 
Page 57 of 242
55 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. 
!
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. 
The active audio source will be muted 
until the display has been returned to 
its closed position. If you do not do so, 
the COMAND returns the display unit 
to its closed position. 
Page 58 of 242
56 Audio
CD changer* operation
 CD changer* operation
Activate the CD changer* main menu 
(
page 61).
or
Load an audio CD into the CD changer* 
(
page 57).
The CD changer* is located in the glove 
box.
Open the glove box.
Press the chrome CDC button 1. 
The CD changer* lowers and becomes 
accessible.1CD changer* release button
2CD slot
3Magazine compartement buttons
By hand, lift the CD changer* into the 
stowed position. 
A click is heard when fully retracted.
Switching to CD changer* mode
Accessing the CD changer*
Retracting the CD changer*
Loading CDs
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
The CD changer* can accomodate up 
to 6 audio CDs (
page 70).
i
For more information see General 
Information on CD operation 
(
page 52). 
Page 59 of 242
57 Audio
CD changer* operation
The CD changer* has a built-in magazine 
which can hold up to six CDs. The CD 
changer* has six magazine compartment 
buttons 3 for controlling the loading 
procedure. LEDs in the buttons indicate 
the status of the corresponding magazine 
compartment.
Button LED off:
Magazine compartment empty
Button LED continuously red:
Magazine compartment loaded with a 
CD
Button LED flashes green:
CD changer requesting CD to be 
loadedThe status of a magazine compartment can 
also be seen when selecting a CD in the 
Magazine menu (
page 64).
The CD slot 2 for loading CDs into the CD 
changer* is located above the buttons 3.
Loading options:
Loading a single magazine 
compartment
Loading all six magazine 
compartments
Loading a single magazine compart-
ment1CD changer* release button
2CD slot
3Magazine compartement buttonsAccess the CD changer* (page 56).
Briefly press the button 3 of the 
empty magazine compartment to be 
loaded.
Wait until the LED in the button 3 
flashes green.
This indicates that the CD changer* 
requests a CD. i
Loading a magazine slot will stop the 
playback of a CD in the changer.
 
Page 60 of 242
58 Audio
CD changer* operation
Insert an audio CD into the CD slot 2 
within approx. 15 seconds. Insert the 
CD face up.
The CD is pulled in. The red LED in the 
corresponding magazine compartment 
button 3 lights up continuously. The 
system starts playing the CD.
The loading procedure is completed.
Retract the CD changer* (page 56).
Loading all six magazine 
compartments
1CD changer* release button
2CD slot
3Magazine compartement buttonsInitial situation: all magazine compart-
ments empty.
The CD changer* loads all magazine 
compartments beginning with 
compartment 1.
Access the CD changer* (page 56).
Press and hold the button 3 of an 
empty magazine compartment for 
more than 2 seconds.
The LEDs of all magazine compartment 
buttons 3 briefly light up green 
several times.
Wait until the LED in the first magazine 
compartment button 3 flashes green.
This indicates that the CD changer* 
requests a CD.
Insert an audio CD into the CD slot 2 
within approx. 15 seconds. Insert the 
CD face up.
The CD is pulled in. The magazine 
compartment is loaded.
The red LED in the corresponding 
magazine compartment button 3 
lights up continuously. 
The CD changer* then requests 
insertion of the next CD. The LED in the 
corresponding magazine compartment 
button 3 flashes green.
Repeat the last step until all six 
magazine compartments are loaded.
The system plays the sixth CD. The 
LEDs in all magazine compartment 
buttons 3 light up red continously.
The loading procedure is completed.
Retract the CD changer* (page 56).