MERCEDES-BENZ C-Class 2008 W204 Comand Manual
Page 171 of 225
170 System settings
System settings
i If the device list already contains ten autho-
rized devices, you will have to withdraw the au-
thorization for (de-authorize) one of the 
authorized devices. You will then have to switch 
this device off and start the search again. Other-
wise the new device you are looking for will not 
appear in the list.
i If you reopen the device list at a later time, 
this will contain all previously authorized devic-
es.
Displaying details on a Bluetooth® 
device
Open the Bluetooth® device list 
(
page 169).
Select the desired device.
Select “Options” K “Details”.
The details screen for the device is dis-
played.
To close details screen: Rotate ymz 
or slide qmr.
Authorizing a Bluetooth® device
Open the Bluetooth® device list 
(
page 169).
Select “Update”.
i If the authorization of a device, which had 
been authorized in the past, has been withdrawn 
and it is no longer found in the search, the device 
list no longer includes this device. 
Devices that have been authorized in the past 
but not found in the search are either not 
switched on or are not in the vehicle.
Select the as yet unauthorized device 
(no check mark yet).
Select “Options” K “Authorize”.
The input menu for the passcode ap-
pears.
i The passcode is any number with between 
one and sixteen digits that you can select your-
self. You must enter the same number on CO-
MAND and on the device to be authorized. 
Please also refer to the instructions in the mobile 
phone’s manual.
To enter passcode on COMAND: 
Select digits one after another.
To cancel entry on COMAND: Select 
“Back”.
To confirm entry on COMAND: Select 
B:
Enter the same passcode on the Blue-
tooth® device (operating manual for 
the relevant device).
The device is authorized.
De-authorizing a Bluetooth® device
Open the Bluetooth® device list 
(
page 169).
Select the authorized device.
Select “Options” K “De-Authorize”.
You will be asked whether the device 
should really be de-authorized.
Select “Yes” or “No”.
After selecting “Yes”, the authorization 
of the device is withdrawn. 
Page 172 of 225
171 System settings
System settings
i You can fully reset COMAND to the factory 
settings. This process deletes all personal data, 
among other things, (e. g. station memory, ad-
dress book entries, entries in the destination 
memory and in the last destinations of the navi-
gation system). It is recommended that you per-
form a reset before the vehicle is handed over or 
sold, for example.
Select “System” K “System Settings” 
K “Reset”.
You will be prompted to confirm that 
you wish to perform the reset.
Select “Yes” or “No”.
After selecting “Yes”, you will again be 
prompted to confirm that you wish to 
perform the reset.
Select “Yes” or “No”.
After selecting “Yes”, COMAND is reset 
and restarted.
Select “System” K “Language”.
The language list appears. 
The dotRindicates the current setting.
To change setting: Select the desired 
language.
The language is set.
i Setting the system language also changes 
the language of the multifunction display.
ResetSetting the system language 
Page 173 of 225
172 System settings
Tele Aid*
The Tele  Aid* system
(Tele Aid  – Telematic Alarm Identification 
on Demand)
The Tele Aid* system consists of three 
types of response:
automatic and manual emergency
Roadside Assistance
Information
Automatically
An emergency call is initiated automatical-
ly following an accident in which the emer-
gency tensioning devices (ETDs) or air 
bags deploy.
Initiating an emergency call manually
The SOS button is located in the overhead 
control panel.
Briefly press SOS button cover to open.
Press SOS button (for longer than 
2 seconds).
The indicator lamp in the SOS button 
will flash until the emergency call is 
concluded.
Wait for a voice connection to the Re-
sponse Center.
Close cover after the emergency call is 
concluded.
i During the emergency call message “Emer-
gency Call Activated” is displayed, operation 
from COMAND is not possible.
For a complete description and additional 
information on Emergency calls please re-
fer to the vehicle Operator's Manual.
Tele Aid*Emergency calls 
Page 174 of 225
173 System settings
Tele Aid*
The Roadside Assistance button • is lo-
cated in the overhead control panel.
Press and hold Roadside Assistance 
Button  (for longer than 
2 seconds).
A call to a Mercedes-Benz Roadside As-
sistance dispatcher will be initiated. 
The button will flash while the call is in 
progress.
Describe the nature of the need for as-
sistance.
For a complete description and additional 
information on Roadside Assistance calls 
please refer to the vehicle Operator's Man-
ual.The Information button ¡ is located in 
the overhead control panel.
Press and hold Information button 
¡  (for longer than 2 seconds).
A call to the Customer Assistance Cen-
ter will be initiated. The button will 
flash while the call is in progress. 
For a complete description and additional 
information on Information calls please re-
fer to the vehicle Operator's Manual.
Roadside AssistanceInformation calls 
Page 175 of 225
174
Page 176 of 225
175 Voice Control
Overview  . . . . . . . . . . . . . . . . . . .176
Phone operation  . . . . . . . . . . . . .179
Navigation . . . . . . . . . . . . . . . . . .183
A d d r e s s   b o o k   .   .   .   .   .   .   .   .   .   .   .   .   .   .   . 1 9 1                                                                                                                                                                                                                  
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                             
Radio  and  Satellite  Radio* .  .  .  .  .195                                                                                                                                                                                                                        
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                      
DVD changer . . . . . . . . . . . . . . . .198
External equipment (AUX) . . . . .199
C o m m a n d   l i s t   .   .   .   .   .   .   .   .   .   .   .   .   .   .   . 2 0 0                                                                                                                                                                                                                  
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                                                                                                               
                                             
Troubleshooting  . . . . . . . . . . . . .208
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
Page 177 of 225
176 Voice Control
Overview
The following symbols indicate:
sthat you have to say something
tthat there is a voice output from the 
voice control
uthat the system shows information 
on the display.
You can use the voice control system to 
operate the following systems depending 
on the equipment in your vehicle:
Phone
Navigation
Address book
Audio (radio, satellite radio*, 
DVD changer, memory card, 
music register)
Say the commands without pausing 
between individual words. If you enter a 
command that does not exist or is incor-
rect, the voice control system asks you for 
a new command with “Please repeat” or 
“Please repeat your entry!”.
Overview
Operating Safety
G Warning
Please devote your attention first and fore-
most to the traffic situation you are in. While 
the system permits hands-free phone oper-
ation, attention to traffic may be diverted 
not only by physical operation of a phone, 
but also by the distraction of a phone con-
versation while driving. As such, for safety 
reasons, we encourage the driver to stop the 
vehicle in a safe place before answering or 
placing a phone call.
For safety reasons, you should only select a 
destination when the vehicle is stationary.
While the navigation system provides direc-
tional assistance, the driver must remain fo-
cused on safe driving behavior, especially 
attention to traffic and street signs, and 
should utilize the system’s audio cues while 
driving.
The navigation system does not supply any 
information on stop signs, yield signs, traffic 
regulations or traffic safety rules. Their ob-
servance always remains in the driver’s per-
sonal responsibility. DVD maps do not cover 
all areas nor all routes within an area.
Traffic regulations always have priority over 
any route recommendations given.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your vehicle is 
covering a distance of 44 feet (approximate-
ly 13.5 m) every second.
G Warning
Navigation announcements are intended to 
direct you while driving without diverting 
your attention from the road and driving.
Please always use this feature instead of 
consulting the map display for directions. 
Consulting the symbols or map display for 
directions may cause you to divert your at-
tention from driving and increase your risk 
of an accident.
G Warning
Please do not use the Voice Control System 
in an emergency, as the tone of your voice 
may change in a stressful situation. This 
could cause a delay in completing your 
phone call in a timely manner. This could 
distract you in an emergency situation and 
cause you to be involved in an accident.
Symbols only used in this chapter
Usage  
Page 178 of 225
177 Voice Control
Overview
The voice control confirms important com-
mands to you and gives you instructions in 
the event of incorrect entries.
Command types
Voice control distinguishes between the 
following types of command:
Global commands:
These are commands which can be 
called up at any time (e.g. help or 
phone commands).
Local commands:
These are commands which are only 
available for the active application (e.g. 
“Enter destination” during navigation).
Active application
The local commands refer to the applica-
tion currently shown on the display and to 
the audio source you are currently listen-
ing to.
For example, if you are listening to the ra-
dio while the navigation application is ac-
tive on the display, you can operate both 
applications using voice control.To operate a different function using voice 
control, you must first switch to that appli-
cation using the corresponding command.
Operation using the multi-function 
steering wheel
i You can cancel the dialog with voice control 
at any time.
Voice control is operational around half a 
minute after COMAND is switched on.
Starting the dialog
Switch on the ignition (see the vehicle 
Owner's Manual).
Press the ! button.
An acoustic signal confirms that the di-
alog has been started.
Give a command.
Interrupting the dialog
If a list appears on the display, you can use 
the “Pause” command to interrupt the dia-
log. You can then select an entry using the 
COMAND controller.
To resume the dialog with voice control, 
press the ! button on the multifunction 
steering wheel.
1!Activates voice control
2LCancels voice control
3ç Decreases the volume
æ Increases the volume
oMute 
Page 179 of 225
178 Voice Control
Overview
Canceling the dialog
Press the L button.
or
Say the command “Cancel” (except 
when creating and storing voice tags, 
navigation entries or during individual-
ization).
or
Press any button on COMAND.
Adjusting the volume
Start the dialog.
Give a command, e.g. “Help”.
Press the æ or ç button.
The volume increases or decreases 
during voice output.
or
Set the volume for the voice output on 
the volume control for COMAND.
Display messages
The audible help function can be supple-
mented by visual help on the display 
(
page 167). If the help function is 
switched on, the most important com-
mands that are currently possible appear 
in the display when you start the dialog.
In the address book and navigation sys-
tem, a selection list is shown in the display 
if voice control requires additional informa-
tion from you.
1Display
Entering numbers
Digits from “zero” to “nine” are permit-
ted.
Say the phone number in groups of 
three to five digits.
Spell 
The letters of the alphabet and the 
numbers 0 - 9 are permitted.
Say the letters in groups of five to sev-
en letters.
Say each individual letter clearly.
i Using individualization, you can fine-tune 
voice control to your own voice and thus improve 
voice recognition. The process of individualiza-
tion is described in chapter “System Settings”  
(
page 167).
i If you use individualization, it may impair 
recognition of other users. Switch off individual-
ization if it makes recognition of other users 
worse. 
Page 180 of 225
179 Voice Control
Phone operation
You can use voice control to:
place a call by using your voice to input 
a phone number
store names and numbers in the ad-
dress book
dial a number from the address book
listen to the phone book
retrieve and manage your voice mail 
and recorded announcement services
redial
Voice control recognizes whether:
your phone is switched on
your phone is connected via Bluetooth
the car phone is registered with the rel-
evant mobile phone network
it is possible to dial
the PIN has been entered
If it is not possible to dial, voice control is-
sues a message to this effect.
i You can still operate your phone using the 
keypad.
Phone operation
G Warning
Some jurisdictions prohibit the driver from 
using a cellular telephone while driving. 
Whether or not prohibited by law, for safety 
reasons, the driver should not use the cellu-
lar telephone while the vehicle is in motion. 
Stop the vehicle in a safe location before 
placing or answering a call.
If you nonetheless choose to use the mobile 
phone while driving, please use the hands-
free feature and be sure to pay attention to 
the traffic situation at all times. Use the mo-
bile phone only when road, weather and traf-
fic conditions permit. Otherwise, you may 
not be able to observe traffic conditions and 
could endanger yourself and others.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km/h), your vehicle is 
covering a distance of 44 feet (approximate-
ly 14 m) every second.
G Warning
Never operate radio transmitters equipped 
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna) 
from inside the vehicle while the engine is 
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or 
personal injury.
Operation