Radio MERCEDES-BENZ C-Class 2003 W203 Comand Manual

60 AudioCD operation
Press Ö while a CD is being played.
CD operation is muted, the symbol R
will appear in the symbol bar.

Press Ö once again if you wish to
continue playback. The symbol R is fa-
ded out of the symbol bar.
1CD changer error messages
2CD drive error messages
“No CD changer”
COMAND is unable to activate the CD
changer.

If necessary, contact an authorized
Mercedes-Benz Center.“No Magazine”
There is no magazine inserted in the CD
changer.

Load CDs into the magazine and insert
it into the CD changer.
“CD Magazine empty”
There are no CDs in the magazine.

Load CDs into the magazine and insert
it into the CD changer.
“No CD”


CD changer
There is no CD in the magazine slot se-
lected. 
Select another magazine slot.


CD drive
No CD is in the CD drive or the CD in
the drive is not ready to play.
Muting CD playback iCOMAND also cancels muting, if you

select a different audio source,
e.g. radio


alter the volume


press g/h.
Error messages
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1
2

63 Audio
Sound settings
Sound settings
COMAND is equipped with a standard am-
plifier.
You can set

the sound Bass/Treble individually


the sound-center (Fader and Balance)


select predefined sound optimization.
See individual audio mode descriptions for
instructions on this feature.
Adjustments to the sound have a different
effect on the audio and service sources.
The predefined sound optimizations are
available for the audio sources only.Audio sources include:


Radio FM, AM, WB


CD (CD drive, CD changer)


auxiliary audio source, e.g. tape deck (if
connected)
You can activate the main Sound menu in
the audio sources through the menu field
“Sound”.
Service sources include:


Telephone


Voice output in the navigation


Voice recognition system
See separate operating instructions for te-
lephone and voice recognition system.
You can activate the main Sound menu in
the “NAVI Settings” menu (
page 181),
through the menu field “Sound”. Activating the main sound menu
For audio sources
Main sound menu1Radio (FM) is switched on
2Actual sound settings (Bass/Treble)
3Actual sound-center (Fader and Balan-
ce)
4Slider switch to alter the value
5Reset Bass/Treble to “0”, and the Ba-
lance to the middle of the vehicle
6Activate predefined sound optimizati-
ons
Adjusting sound settings

64 AudioSound settings
Turn the right-hand rotary/push-button
v to highlight “Sound“ in the main
menu for radio or CD operation and
press to confirm.
The main sound menu will appear dis-
playing the actual settings.For service sources
1Volume difference
Set the difference between voice out-
put during route guidance and an acti-
ve audio source
“0” The volume of the audio source
is not affected during voice out-
put.
“10” The audio source is set very low
during voice output.

Turn the right-hand rotary/push-button
v to highlight “Settings” in the main
destination input menu (
page 122)
and press to confirm.
The “NAVI Settings” menu will appear
(
page 181).

Turn the right-hand rotary/push-button
v to highlight “Sound” and press to
confirm.
The “Speech Bass/Treble” menu will
appear.
iIt is also possible that “AM Bass/Treb-
le”, “WB Bass/Treble”, “CD Bass/Treb-
le” or “AUX Bass/Treble” are indicated
in 1.
Fader defines sound-center front/
back
Balance defines sound-center left/
right
iNo predefined sound optimizations are
available for service sources.
During adjustment in the “Speech
Bass/Treble” menu, COMAND will is-
sue a repetative voice output of “Samp-
le” to allow you to set the settings as
you prefer.

65 Audio
Sound settings
Setting Bass/Treble/Fader/Balance
1Setting mode active
Turn the right-hand rotary/push-button
v to move the cursor to the parameter
you want to adjust and press to con-
firm.
The setting mode is active. The activa-
ted sound parameter is shown in red.

Turn the right-hand rotary/push-button
v to set the desired value.

Press the button.
The value is set. The sound feature is
shown in black.Reset the Settings to “0”

Turn the right-hand rotary/push-button
v to highlight “Reset” and press to
confirm.
COMAND sets treble and bass to “0”
and sets the sound-center into the
middle of the vehicle.
Return to the main audio menu

Press *.iThe sound-center adjustments affect
the settings for the radio (FM/AM/WB)
and CD operation.
Adjustments which are made to the na-
vigation system will affect the voice re-
cognition system and the telephone.

68 TelephoneImportant notes
Important notesIn chapter “Telephone”, you will find de-
tailed information regarding the telepho-
ne*, including emergency call, SMS
function and service numbers.
1 Observe all legal requirements

Please read the chapter “Telephone”
first before attempting to operate your
telephone.


Always drive with extreme caution
when you operate the telephone
hands-free.


For safety reasons, you should not use
the mobile telephone handset to make
a call while driving the vehicle.
If the signal strength is very weak (dis-
play in the symbol field of all menus):
Wait until reception improves before
making a call.
Warning
G
Some jurisdictions prohibit the driver from
using a cellular telephone while driving a ve-
hicle. Whether or not prohibited by law, for
safety reasons, the driver should not use the
cellular telephone while the vehicle is in mo-
tion. Stop the vehicle in a safe location be-
fore answering or placing a call.
If you nonetheless choose to use the cellular
phone while driving, please be sure to pay
attention to the traffic situation at all times.
Use the cellular phone
1 only when the traffic
situation allows.
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e.
without beeing connected to an external an-
tenna) from inside the vehicle while the en-
gine is running. Doing so could lead to
malfunction of the vehicle’s electronic sys-
tems, possibly resulting in an accident and
personal injury.
!Radio transmitters, such as a portable
telephone or a citizens band unit
should only be used inside the vehicle
if they are connected to a separate ex-
terior antenna that has been approved
by Mercedes-Benz.

69 Telephone
Important notes


Close the windows and reduce all out-
side noise as much as possible when
you use hands-free operation.


A brief disconnection from the cellular
network is not a malfunction, as this
can occur when the network switches
areas. The phone will automatically try
to sign on to a network again.


If the message “Locked. Please enter
code” appears, enter the unlock code
to enable all telephone functions
(page 78).


If a menu other than the telephone
menu is displayed on the COMAND
screen, the display will change if an
outgoing call is sent out via the multi-
function steering wheel.In the following situations, it is not possible
or not yet possible to use the telephone:


The telephone is already unlocked but
is not or not yet registered in the net-
work.
The message “No Service” appears.
The telephone will try to register into
an existing network. If the network is
available, the telephone will be ready
for use.
The above message also appears

if the network is no longer available
due to weak signals


if you try to make a call (message
appears for 8 seconds)


The message “Telephone is being acti-
vated. Please wait.” appears.
COMAND prepares the telephone for
use. Select other system functions, e.g.
radio, by pressing the corresponding
button or wait until the telephone is ac-
tive.


One of the two messages “No telepho-
ne” or “Telephone not connected” ap-
pears.
Please connect the telephone.


The message “Telephone defective”
appears.
Please contact an authorized
Mercedes-Benz Center.

122 NavigationDestination inputMain destination input menu
Press b.
The display that appears is dependent
on the last navigation function used:Route guidance has been switched off


the main destination input menu or


the location map (
page 149).
Route guidance has been switched on


the symbol display with an arrow in-
dicating your driving direction
(page 144) or


the map with the symbol indicating
current vehicle location
(page 144)
Route guidance has been switched on,
COMAND has been switched off for
more than 2 hours


an inquiry menu (
page 169)Changing over to another system, for
e.g. radio

Press c.
Switching the navigation system on
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iThe following message will appear
when COMAND is preparing for naviga-
tion startup: “Navigation being activa-
ted. Please obey all traffic rules.”. Then,
one of the 3 displays will appear.
!Potential fault messages during prepa-
ration of navigation startup:

“Navigation cannot be activated. An
error has occurred”.


“CD-Reading error. Please use ano-
ther CD”.
Eject the inserted CD and insert a
navigation CD.


“No CD available. Please insert
NAVI-CD type DX only”.
Insert a current DX-coded navigati-
on CD. Using other navigation CDs
might lead to malfunctions.
If the error has been eliminated, you will
see the message “Navigation being ac-
tivated. Please obey all traffic rules”.

153 Navigation
Route guidance
If an audio source is switched on, e.g. the
radio, the voice output will be mixed with
that of the audio source.
You can individually set the audio volume
differential between voice output/audio
source (
page 64). COMAND mutes navi-
gation voice outputs during telephone/
Tele Aid operation.
Repeating current voice output

Press the left-hand rotary/push-button
v briefly.
Muting current voice output

Press Ö briefly during a voice out-
put. You will hear the next announce-
ment normally.Switching the voice output off for the
duration of the current route guidance

Press Ö longer than 2 seconds du-
ring a voice output.
You will see the message “Voice output
is muted”.
Switching the voice output on again
The current route guidance has been com-
pleted.
Voice output will automatically switch on
again.
During a voice output

Press the left-hand rotary/push-button
v.Altering the voice output volume
At the COMAND control unit

Turn the left-hand rotary/push-button
v during a voice output.
COMAND will accept this setting for
following voice outputs.
At the multifunctional steering wheel
You can alter the volume with the steering
wheel keys during a voice output as well.
To raise the volume

Press J.
To lower the volume

Press I.

171 Navigation
Route guidance
During route guidance (you see either sym-
bol or map display) you can select another
COMAND system by pressing the corres-
ponding key.
The main menu of the selected audio sour-
ce will appear and you will e.g. hear the
radio.
Route guidance and the navigation’s voice
output remain active.
The voice output is added to the audio
playback.
You can individually adjust the volume le-
vels for voice output and audio playback
(page 64).

Press c.
The main radio menu will appear.
The station last tuned to will begin to
play.

Selecting a station (
page 30).
Returning to navigation system

Press b.During route guidance, you can operate an
audio source that is active in the back-
ground. Although the options are limited,
you can operate the audio source without
having to fully switch to the corresponding
system.
1A window is shown in the symbol or
map display, providing details about
the active audio source
Activating audio system
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Activating audio functions

172 NavigationRoute guidanceRemoving the window
This is done automatically after 3 seconds.
or
Press *.
The radio is active


Selecting a memorized station from the
respective memory (FM, AM or WB)
Press number keys 1 through 0.


Performing station seek
Press g or h briefly.


Starting manual search
Press g or h longer than
2 seconds.
The search run will start in the desi-
red direction - frequency ranges
FM, AM or WB.CD mode is active


Selecting CD with number keys
0 CD drive
1 - 6 CD changer


Selecting previous/next track
Press g or h briefly.


Skipping backwards/forwards
Hold g or h longer than
2 seconds.