MERCEDES-BENZ R-Class 2006 W251 Comand Manual
Page 41 of 242
39 At a glance
Quick reference COMAND
Activating the sound functions*
In any audio source operation:
Activate the main menu for the 
respective operating mode 
(
page 31).
Press the Sound soft key.
The Sound menu will appear.
Push the joystick to g or G to 
select the desired function.
Press E.
The function is activated. 
Page 42 of 242
40
Page 43 of 242
41 Audio
Audio operation
Radio operation
CD operation
CD changer* operation
MP3 CD operation
AUX operation 
Page 44 of 242
42 Audio
Audio operation
 Audio operation
In chapter “Audio” you will find detailed 
information regarding
radio operation
CD operation (CD drive, CD changer*)
MP3 CD operation
AUX operation
If you have not done so already, please 
familiarize yourself with these functions by 
reading chapter “At a glance”.
Press A.
Audio menu
WarningG
In order to avoid distraction which could 
lead to an accident, the driver should enter 
system settings with the vehicle at a stand-
still and operate the audio system only if 
permitted by road, weather and traffic con-
ditions. 
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your vehicle is co-
vering a distance of 44 feet (approximately 
14 m) every second.
Opening the Audio menu 
Page 45 of 242
43 Audio
Audio operation
If an audio submenu is displayed, press 
the 
Back soft key until the Audio menu 
is displayed.or
Press A again.
In the Audio menu, press the soft key 
for the desired audio source.
Switching On
Press J.
The system mutes the active audio 
source and the
ß symbol is displayed in 
the status bar. The soft keys on the left 
side are greyed out in some submenus.
Switching off
Press J again.
i
The CD or the MP3 soft key is 
available, depending on the medium 
inserted in the CD AUDIO slot.
The 
CD soft key is available if a CD 
changer* is connected to the 
COMAND.
Selecting an audio source
Muting
i
Mute function will also cancel by 
turning the rotary volume control or by 
pressing any soft key, g, h, the 
joystick, E or any keypad button 
except #. 
Page 46 of 242
44 Audio
Radio operation
 Radio operation
In the Audio menu, press the Radio 
soft key.
The Radio main menu will appear. The 
station last tuned to will begin to play.
Radio main menu
1Soft key assignment
2Main area
3Status barSwitching back to the Audio menu
Press the Back soft key.
You can select between FM-, AM- and WB-
Band.
AM Band
In the FM Radio main menu, press the 
FM/AM soft key until “AM” is displayed 
in the status bar.The AM station last tuned to will begin to 
play. The frequency will appear in the 
display.
Switching back to FM bandPress the FM/AM soft key.
The station last tuned to will begin to play.
Switching to radio operation
i
The Sound soft key is available if 
COMAND is equipped with a sound 
amplifier*.
Changing the Radio band 
Frequency bandFrequency range
FM
AM87.7 - 107.9 MHz
530 - 1710 kHz 
Page 47 of 242
45 Audio
Radio operation
Weather Band WB
In the FM or AM Radio main menu, 
press the 
WB soft key.
An automatic scan is starting and the 
COMAND plays and displays the 
channel of the first strong WB station.
Switching back to FM or AM band
Press the FM/AM soft key.
or
Press the WB soft key
The station last tuned to will begin to 
play.
Switching back to the Audio menu
Press the Back soft key.
The Weather Band WB station will con-
tinue to play.You can use the following functions:
Automatic seek tuning (page 46)
Manual tuning (page 46)
Station selection from the preset menu 
(
page 47)
Station selection via direct frequency 
entry (FM, AM) (
page 46)
Automatic station scan (FM, AM) 
(
page 47)
Station selection from the FM/AM 
Autostore presets (
page 51)
i
With the number keys 1 - 7 i t  i s  p o s -
sible to choose a channel.
The message 
No channel will appear 
if the system could not detect a chan-
nel.
Selecting a station 
Page 48 of 242
46 Audio
Radio operation
Automatic seek tuning
Press g or h.
or
Push the joystick to gor G.
The radio will tune in to the next 
receivable station (FM, AM) or channel 
(WB) with descending/ascending 
frequency depending on the direction 
of seek.
WB direct channel selection
Press a number key 1 through 7.Manual tuning (FM, AM)
Activate the desired wave band 
(
page 44).
Press g or h longer than 2 se-
conds.
The function rapidly scans the 
frequencies.
Press g or h repeatedly to 
change the frequency step by step.
or
Push the joystick to H or h.
Each push of the joystick will change 
the frequency by one step.
FM Band
The frequency displayed will change in in-
crements of 0.2 MHz.
AM Band
Tuning will take place in increments of 
10 kHz.Station selection via direct frequency 
entry (FM, AM)
E.g.: 102.7 MHz in the FM band
Activate the desired wave band 
(
page 44).
Press *.
An input line will appear.
i
The selected channel is not shown in 
the status line. 
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47 Audio
Radio operation
Enter the desired frequency with the 
number keys within 8 seconds, e.g. 
1027 for 102.7 MHz.
The station you have selected will 
begin to play.
FM, AM band
Entries outside the frequency range are 
not accepted. The message 
Please 
observe frequency range 87.7 - 
107.9 MHz
 will appear briefly.Preset station selection via number 
keypad
FM- and AM-Bands
Press one of the number keys, such as 
2 briefly.
The radio will tune to the frequency as-
signed to that memory location. If none 
has been set by you, the radio will not 
change the station.Automatic station scan (FM, AM)
The stations on the same band (FM, AM) 
can be scanned one after the other for 8 
seconds each.
Start scan function
Activate the desired wave band 
(
page 44).
Press the Scan soft key.
Frequency bandFrequency range
FM
AM87.7 - 107.9 MHz
530 - 1710 kHz
i
If you do not make another entry within 
8 seconds, the function will be canceled 
and you will continue listening to the 
station last tuned to.
i
FM and AM presets are independent 
and can only be accessed while in the 
corresponding band.
Saving stations for FM and AM 
(
page 49).
i
In the AM band, two search runs take 
place. During the first run, stations with 
good reception are played. During the 
second run, stations with weaker 
reception are played.  
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48 Audio
Radio operation
The scan function will begin.End scan function and play a station
Press the Scan soft key again if you 
hear the desired station.
or
The scan function stops automatically 
when the first station received has been 
scanned twice.You can use the following functions:
Saving stations manually (FM, AM)
Saving stations automatically FM, AM 
(
page 50)
Selecting a station from the FM/AM 
preset menu (
page 51)
Selecting a station from the FM/AM 
Auto presets (
page 51)
Memory functions