MERCEDES-BENZ R-Class 2006 W251 Comand Manual
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219 System settings
System settings
In the System settings menu, press the 
Display soft key.You can use the following functions:
set the display dimming characteristics
adjust the display brightness
Setting the display dimming 
characteristics
Push the joystick to G or g to 
select an entry.
Day mode
The display is continuously set to 
daylight design.
Night mode
The display is continuously set to night-
time design.
Automatic
The display changes depending on the 
ambient light sensor in the vehicle.
Press E.
The setting is applied. The System 
settings menu will appear.
Adjusting the display brightness 
Press the Bright. soft key.
Push the joystick to H or h 
direction to adjust the brightness.
Selecting display settings
OptionSymbol
Display mode selected_ 
Display mode not 
selected-  
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220 System settings
System settings
or
Press the Bright. soft key longer than 
2 seconds.
The display brightness changes 
gradually. When the slider reaches the 
end of the left or right border, it starts 
moving into the opposite direction.
Release the Bright. soft key when 
the desired brightness is reached.
Confirming the setting
Press the Back soft key. 
or
Press E.
The brightness setting is applied.Use this function to:
Activate/deactivate the voice control 
help screen
Start or delete voice control 
individualization
Activating/deactivating the help 
screen
Open the System settings menu 
(
page 216).
Press the VC Tips soft key.
The Voice control menu will appear.
Push the joystick to g to select the 
Help Screen menu item.
The status bar shows you whether 
the help screen is activated or 
deactivated.
Press E.
The menu to activate or deactivate the 
help screen will appear.
Selecting Voice control* settings 
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221 System settings
System settings
In this display example, the help screen 
is activated.
Push the joystick to G or g to 
select an entry.
Press E.
This will activate or deactivate the help 
screen.
Voice control individualization
The individualization function is used to 
adapt the voice control to your own voice 
and to therefore improve speech 
recognition. This does not affect speech 
recognition of other users.
Individualization consists of two stages. 
The first stage involves training digits, 
while the second stage trains specific 
commands.
Open the System settings menu 
(
page 216).
Press the VC Tips soft key.
The Voice control menu will appear.
Push the joystick to G to select the 
Individualization menu item.
Press E.
The Individualization menu will appear.Starting individualization
Push the joystick to g to select menu 
item 
Start new 
individualization
.
Press E.
The individualization process starts.
The system now guides you through 
the individualization process using a 
dialog, all operations are voice inputs.
i
You can only activate the individualiza-
tion function when the car is station-
ary. If the car is moving, the following 
message will appear: 
Individualization only 
possible when car is 
stationary
. 
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222 System settings
System settings
After completion of the first stage, the 
system prompts you to save the data of the 
first stage.
If you do not save the first stage:
Individualization is cancelled,
Data from an existing first stage 
remains unchanged.
If you save the first stage:
Data from an existing first stage is 
over-written but is not saved until the 
second stage is started.If you do not start the second stage:
Data from the first stage remains 
unchanged,
The individualization process is 
finished.
After completion of the second stage, the 
system prompts you to save the data of the 
second stage.If you do not save the second stage:
Individualization is cancelled,
Data from an existing second stage 
remains unchanged.
If you save the second stage:
Data from an existing second stage is 
deleted and all new data is saved,
Individualization is finished.
i
If you later decide to start the second 
stage, you must restart the 
individualization process from the 
beginning of the first stage. 
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223 System settings
System settings
Canceling individualization
You can cancel individualization at any 
time during either the first or second 
stage. All existing data remains 
unchanged.
During any individualization stage, 
press the 
Cancel soft key.
Individualization is cancelled.
Deleting individualization
In the Individualization menu, push the 
joystick to G to select menu item 
Delete individualization.
Press E.
A prompt appears, which asks if you 
really want to delete the data.
Press E to confirm Yes.
The individualization is deleted.
In the System settings menu, press the 
Reset soft key.
The Reset inquiry menu will appear. 
No 
is highlighted.
i
This function is not available if no 
individualization data has been saved.
Resetting all settings to the factory 
settings
i
All your personal data, e.g. Last desti-
nation entries or Radio main menu pre-
set entries, will be deleted. 
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224 System settings
System settings
If you do not wish to reset to the factory 
settings
Press the Back soft key or press E.
The System settings menu will appear.Accepting the factory settings
Push the joystick to H or h 
direction to select 
Yes.
Press E.
The inquiry 
Do you really want to 
reset?
 will appear.
Select Yes.
The message 
All data has been 
reset.
 COMAND will now 
restart.
 will appear.
i
The factory settings are:
Time - Central Time
Language - Instrument cluster
Verification tone - On
Notification tone - On
Display setting - Automatic 
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225 Glossary
Aspect ratio
Width and height proportions of a video 
screen or signal - usually either 4:3 
(NTSC) or 16:9 for widescreen DVDs.
Audio source
This includes the systems radio and CD 
(CD drive in the control unit, CD chan-
ger*).
Autostore
Enters the stations with the best recep-
tion (signal strength) into the autostore
memory in order of their reception
quality (from strong to weak).
Balance
Defines sound-center left/right.
Bit rate (MP3)
Measurement of transmission speed. 
Indicates the number of ->bits trans-
mitted per time unit.CD
(Compact Disc)
Digital storage medium in disc form.
CDDA
(C
ompact Disc Digital Audio)
File type for a convential audio ->CD-
ROM.
CD-R
(CD
 Recordable)
->CD which can be written to once, 
read many times but not deleted.
CD-ROM
(CD
 Read Only Memory)
->CD which can only be read.
CD-RW
(CD
 Rewritable)
->CD which can be read, written and  
deleted.CD text
Additional information which may be 
included on ->CD (e.g. track name, CD 
title).
COMAND
(Co
ckpit Management and Data Sys-
tem)
Information and operating center for 
vehicle sound and communications 
systems, including the radio and 
CD player, as well as for other optional 
equipment (CD changer*, telephone*, 
etc.).
Coordinates
Indicate the geographical position on
the earth's surface.  
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226 Glossary
DVD
(D
igital Versatile Disc)
Digital storage medium for storing lar-
ge amounts of data, e.g. movies.
DVD-R
(DVD
 Recordable)
->DVD which can be written to once, 
read many times but not deleted.
DVD-ROM
(DVD
 Read Only Memory)
->DVD which can only be read.
Emergency call
This function places a call to a local 
911 provider. It does not initiate a
 ->Tele Aid* call. Please note that the 
911 emergency call system is a public 
service. Using it without due cause is a 
criminal offense.
Fader
Defines sound-center front/back.Folder
Alternative designation for songs/
tracks. Data saved on a storage medi-
um can be grouped into folders for
improved organization. Can be likened 
to a filing cabinet containing a number 
of folders, each of which holds a num-
ber of documents.
GPS
(Global Positioning System) 
Satellite-based system for relaying 
geographic location information to and 
from vehicles equipped with special re-
ceivers. Employs DVD digital maps for 
navigation.
GSM
(G
lobal System for Mobile Communica-
tion)
A standard network protocol used 
throughout the world for digital cellular 
communicationHeading Up
Dynamic map alignment, map is dis-
played facing driving direction pointing 
up.
ID3 tag
Additional information which may be 
included in MP3 files (e.g. title, artist, 
album).
ISO9660
A standard file system for recording 
data on CDs.
Joliet
Standard for recording data on CDs; an 
extension of ISO 9660.
LOGIC7 Surround
Playback method resulting in an impro-
ved spatial listening experience com-
pared to conventional stereo playback.
MP3
The term used in everyday speech for 
->MPEG1 Audio Layer 3. 
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227 Glossary
MPEG1 Audio Layer 3
A means of compressing digital audio 
data.
Multi session
A method for recording data, e.g. for 
CDs. Data is written to the CD in a num-
ber of sessions.
Navigation DVD
Contains all available destination 
addresses (town, road, intersection, 
house number, special destinations) 
and the digital map material for a coun-
try or a region for destination entry, 
route calculation and destination 
guidance at time of DVD production. 
DVD maps do not cover all areas nor all 
routes within an area. North Up
The map is displayed facing north du-
ring route guidance.
NTSC (National Television System Com-
mittee)
A TV and video standard for USA and 
Canada. This standard uses a composi-
te video signal, in which all information 
- red, blue, and green signals (and 
sometimes audio signals as well) are 
mixed together.
PAL (Phase Alternation Line)
A TV and video standard for most coun-
tries in western and middle 
Europe. The PAL standard uses a 
higher image resolution and a lower 
picture frequency than the NTSC stan-
dard.PIN code
Your PIN code prevents unauthorized 
persons from using your GSM mobile 
phone. The PIN code is a number 
string, which you have to enter when 
switching on the telephone.
POI (Point of Interest)
Points of Interest include service stati-
ons, rest areas, parking lots, hospitals,
sight-seeing points, etc.
Provider
is the network operator who makes 
available (provides) telephone services
PUK (Personal Unblocking Key)
must be entered if the wrong PIN was
entered three consecutive times. 
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228 Glossary
Regional code 
The regional code prevents video DVDs 
from being played on DVD players not 
having the same code as the ->DVD. 
The factory setting of the Rear Seat En-
tertainment* CD/DVD player is code 
1. It can only play back video DVDs also 
having code 1 or no code.
Roaming
For this function, the telephone uses 
the telephone network of a contract 
partner. The ROAMING indicator in the 
COMAND display indicates that a call is 
being made using a contract partner.
Root directory
The uppermost directory on a storage
medium.
Scan rate (MP3)
Indicates the frequency at which volt-
age samples are taken during the con-
version of an analog signal into a digital
signal. The analog-to-digital converter
converts the samples into digital sig-
nals.Service source
This includes the systems telephone* 
and navigation (voice output during 
destination guidance)
SIM
(Subscriber Identity Module)
Card provided by the GSM telephone
service provider. Necessary for acces-
sing a mobile communication network.
SMS
(S
hort Message Service)
With this function you can receive and 
read short text messages (if SMS ser-
vice is provided by your provider)
Soft keys
Keys that activate different functions. 
Function of key depends on the selec-
ted operating mode.
Subtitle
A textual representation of the spoken 
audio in a video program.Tele Aid*
(Tele
matic Alarm Identification on De-
mand)
The Tele Aid system consists of three 
types of response: automatic and ma-
nual emergency, roadside assistance, 
and information. Tele Aid is initially 
activated by completing a subscriber 
agreement and placing an acquain-
tance call. Refer also to the vehicle 
operating instructions.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is char-
ged, properly connected, not damaged, 
and cellular and GPS coverage is avai-
lable.
Unlock code
Your unlock code prevents unauthori-
zed persons from using your telephone. 
The unlock code is a number string
you must enter when switching
on the telephone if you have locked
the phone before turning it off or if the 
phone is set to lock automatically.