Page 210 of 232

210 System
System settings
The respective tones are activated or
deactivated. You hear the tone when
you activate it.
Press the Back soft key.
The System settings menu will appear.
The setting is saved.
In the System 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.
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.
Selecting display settings
OptionSymbol
Display mode selected_
Display mode not
selected-
Page 217 of 232

217 System
Tele Aid*
Tele Aid*
Tele Aid* incorporates the following
functions:
Emergency call system
Roadside Assistance
Information
For certain emergency situations, the
system automatically triggers an
emergency call. An emergency call can
also be triggered manually by pressing the
corresponding button. Refer to your
vehicle Operator’s Manual for additional
information.If the system initiates an emergency call,
Connecting call and theß symbol will
appear on the status bar. All active
connections are terminated.
During the emergency call,
Call
Connected appears on the status bar. No
operation from COMAND is possible, so
you cannot disconnect the emergency call.Roadside Assistance will assist if technical
problems with your vehicle are
experienced.
Roadside Assistance can be requested
manually by pressing the corresponding
button. Refer to your vehicle Operator’s
Manual for additional information.
Upon request of Roadside Assistance, the
system initiates the call to the Assistance.
Connecting call and theß symbol will
appear on the status bar. All active
connections are terminated except
Emergency call.
Emergency call system
Roadside Assistance
Page 218 of 232

218 System
Tele Aid*
If the connection is made, the message
Call Connected appears on the status
bar.
During activation of a Roadside Assistance
call
it is possible to switch to navigation
you can initiate an Emergency call.
Terminating the connection
Press K.
COMAND reverts to the system last
active before Tele Aid was activated.A call to the Response Center will be initi-
ated by pressing the corresponding but-
ton. Information regarding the operation of
your vehicle, the nearest authorized Mer-
cedes-Benz Center or Mercedes-Benz USA
products and services is available to you.
Refer to your vehicle Operator’s
Manual for additional information.
When an information call is initiated,
Connecting call and theß symbol will
appear on the status bar. All active
connections are terminated except
Emergency call and Roadside Assistance
call.When the connection is made, the
message Call Connected appears on
the status bar.
During activation of an Information call
it is possible to switch to navigation
you can initiate an Emergency call or
Roadside Assistance call.
Terminating the connection
Press K.
COMAND reverts to the system last
active before Tele Aid was activated.
Information
Page 222 of 232

222 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.