
228
Tele Aid
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Tele Aid (optional)
Important!
The initial activation of the Tele Aid system may only be
performed by completing the subscriber agreement and
placing an acquaintance call using the “SOS” button.
Failure to complete either of these steps will result in a
system that is not activated. If the system is not
activated the indicator lamp in the “SOS” button stays
on after turning electronic key in starter switch to
position 2 and the message “TELE AID – NOT
ACTIVATED” will be shown in the multifunction display
for approx. 10 seconds.
If you have any questions regarding activation, please
call the Response Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
( Te l e matic Alarm Identification on Demand)
The Tele Aid system consists of three types of response;
automatic and manual emergency, roadside assistance
and information.
The Tele Aid system is operational providing that the
vehicle’s battery is charged, properly connected, not
damaged and cellular and GPS coverage is available. The speaker volume of a Tele Aid call can be adjusted
when using the volume control on the multifunction
steering wheel, for raising press button
æand for
lowering press button ç.
To activate, press the “SOS” button, the Roadside
Assistance button or the Information button ¡,
depending on the type of response required.
Shortly after the completion of your Acquaintance Call,
you will receive a user ID and password via first call
mail. By visiting www.mbus a.com and selecting “Tele
Aid” (USA only), you will have access to account
information, remote door unlock, Info Services
* profile
and more.
* Optional (available only with COMAND)System self-check
Initially, after turning the electronic key in starter
switch to position 2, malfunctions are detected and
indicated (the indicator lamps in the “SOS” button, the
Roadside Assistance button and the Information
button ¡ stay on longer than 10 seconds or do not
come on). The message “TELE AID – VISIT
WORKSHOP” appears for approx. 10 seconds in the
multifunction display.

229
Tele Aid
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Important!
Always make sure that the indicator lamps in the
“SOS” button, in the “Roadside Assistance” button and
in the “Information” button do not remain illuminated
constantly in red and the message “TELE AID – VISIT
WORKSHOP” is not displayed in the multifunction
display after the system self check.
If a malfunction is indicated as outlined above, have the
system checked at the nearest Mercedes-Benz Center as
soon as possible.
Emergency calls
An emergency call is initiated automatically:
• following an accident in which the Emergency
Tensioning Retractors (ETR’s) or airbags deploy,
• if the antitheft alarm or the tow-away alarm stays on
for more than 20 seconds, see pages 44 and 46.
An emergency call can also be initiated manually by
opening the cover next to the inside rear view mirror
labeled “SOS”, then briefly pressing the button located
under the cover. See below for instructions on initiating
an emergency call manually. Once the emergency call is in progress, the indicator
lamp in the “SOS” button will begin to flash. The
message “EMERGENCY CALL – CONNECTING CALL”
appears in the multifunction display. When the
connection is established, the message “EMERGENCY
CALL – CALL CONNECTED” appears in the
multifunction display. All information relevant to the
emergency, such as the location of the vehicle
(determined by the GPS satellite location system),
vehicle model, identification number and color are
generated.
A voice connection between the Response Center and
the occupants of the vehicle will be established
automatically soon after the emergency call has been
initiated. When a voice connection is established the
audio system mutes and the message “TELE AID –
EMERGENCY CALL ACTIVE” appears in the
multifunction display. The Response Center will attempt
to determine more precisely the nature of the accident
provided they can speak to an occupant of the vehicle.

233
Tele Aid
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Notes:
The indicator lamp in the Roadside Assistance
button
remains illuminated in red for approx.
10 seconds during the system self-check after turning
electronic key in starter switch to position 2 (together
with the “SOS” button and the Information
button ¡).
See system self-check on page 228 when the indicator
lamp does not light up in red or stays on longer than
approximately 10 seconds.
If the indicator lamp in the Roadside Assistance
button is illuminated continuously and there was
no voice connection to the Response Center established,
then the Tele Aid system could not initiate an Roadside
Assistance call (e.g. the relevant cellular phone network
is not available). The message “ROADSIDE
ASSISTANCE – CALL FAILED” appears in the
multifunction display.
Roadside Assistance calls can be terminated using the
ì button on the multifunction steering wheel. Information button ¡
Located below the center armrest cover is the
Information button
¡. Pressing and holding the
button (for longer than 2 seconds) will initiate a call to
the Customer Assistance Center. The button will flash
while the call is in progress. The message “INFO –
CONNECTING CALL” will appear in the multifunction
display. When the connection is established, the
message “INFO – CALL CONNECTED” appears in the
multifunction display. The Tele Aid system will transmit
data generating the vehicle identification number,
model, color and location (s ubject to availability of
cellular and GPS signals).
A voice connection between the Customer Assistance
Center representative and the occupants of the vehicle
will be established. When a voice connection is
established the audio system mutes and the message
“TELE AID – INFO CALL ACTIVE” appears in the
multifunction display. Information regarding the
operation of your vehicle, the nearest Mercedes-Benz
Center or Mercedes-Benz USA products and services is
ava i l ab le to yo u .
For more details concerning Tele Aid, please visit
www.mbusa.com and use your ID and password, sent to
you separately, to learn more (USA only).

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Tele Aid
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Notes:
The indicator lamp in the Information button ¡
remains illuminated in red for approx. 10 seconds
during the system self-check after turning electronic
key in starter switch to position 2 (together with the
“SOS” button and the Roadside Assistance button ).
See system self-check on page 228 when the indicator
lamp does not light up in red or stays on longer than
approximately 10 seconds.
If the indicator lamp in the Information button ¡ is
illuminated continuously and there was no voice
connection to the Response Center established, then the
Tele Aid system could not initiate an Information call
(e.g. the relevant cellular phone network is not
available). The message “INFO – CALL FAILED” appears
in the multifunction display.
Information calls can be terminated using the
ì button on the multifunction steering wheel. Important!
If the indicator lamps do not start flashing after
pressing one of the buttons or remain illuminated (in
red) at any time, the Tele Aid system has detected a fault
or the service is not currently active, and may not
initiate a call.
Visit your Mercedes-Benz Center and have the system
checked or contact the Response Center at 1-800-756-
9018 (in the USA) or 1-888-923-8367 (in Canada) as
soon as possible.
Upgrade Signals
Tele Aid system processes calls using the following
priority.
• Automatic emergency – First priority
• Manual emergency – Second priority
• Roadside assistance – Third priority
• Information – Fourth priority
Should a higher priority call be initiated while you are
connected, an upgrade (altern ating) tone will be heard,
and the appropriate indicator lamp will flash. If certain
information such as vehicle identification number or
Customer information is not available, the operator may

237
Tele Aid
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Stolen vehicle tracking services
In the event your vehicle was stolen, report the incident
to the police who will issue a numbered incident report.
Pass this number on to the Mercedes-Benz Response
Center.
The Response Center will then attempt to covertly
contact the vehicle’s Tele Aid system. Once the vehicle
is located, the Response Center will contact the local
Law Enforcement and you. The vehicle’s location will
only be provided to Law Enforcement.
Info Services
(optional-except Canada)
(only vehicles with COMAND)
Info Services categories include news, sports, stocks,
weather and calendar reminders. Choices can be
selected via www.mbusa.com or by calling 1-800-FOR-
MERcedes.
To request Info Services press the SVC button on the
COMAND system, then select “SEND NEW REQUEST
FOR INFO SERVICE”. “NEW INFO SERVICE REQUEST
TRANSMITTED” will appear in the COMAND display
and call status messages will appear in the
multifunction display. Once information is available, the message “NEW INFO
RECEIVED - READ LATER WHEN STOPPED?” will
appear. Select “Yes”. With the vehicle stopped in a safe
location press SVC, then select “View Info Service of
mm.dd.yyyy hh.mm”. Messages will be retained for
30 minutes once the ignition is switched off.
Important!
Tele Aid utilizes the cellular network for
communication and the GPS (Global Positioning
System) satellites for vehicle location. If either of these
signals are unavailable, the Tele Aid system may not
function and if this occurs, assistance must be
summoned by other means.
Wa r n i n g !
If the indicator lamp in the “SOS” button does not
illuminate during or remains illuminated after the
system self-check or if the message “TELE AID –
VISIT WORKSHOP” appears in the multifunction
display, have the system checked at the nearest
Mercedes-Benz Center as soon as possible.

242
Starting and turning off the engine
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Starting and turning off the engine
Before starting
Ensure that parking brake is engaged and that selector
lever is in position “P” or “N” (gearshift lever in
neutral). Turn electronic key in starter switch to
position 2.
Starting
Vehicles with automatic transmission:
Do not depress accelerator. Briefly turn electronic key in
starter switch clockwise to the stop and release. The
starter will engage until the engine is running.
If engine will not run, and the starting procedure stops,
turn electronic key completely to the left and repeat
starting the engine.
After several unsuccessful attempts, have the system
checked at the nearest authorized Mercedes-Benz
Center. Vehicles with manual transmission:
Do not depress accelerator. Fully depress clutch pedal,
otherwise the engine cannot be started due to the
integrated safety interlock.
Turn electronic key in starter switch clockwise to the
stop. Release only when the engine is firing regularly.

255
Automatic transmission
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Emergency operation (Limp home mode)
If vehicle acceleration worsens or the transmission no
longer shifts, the transmission is most likely operating
in Limp Home Mode which engages when there is a
malfunction of the transmission. This condition may be
accompanied by the “CHECK ENGINE” malfunction
indicator lamp in the instrument cluster coming on.
In this mode only the 2nd gear or reverse gear can be
activated.
To engage 2nd gear or reverse:
1. S to p t h e ve h i c l e .
2. Move selector lever to position “P”.
3. Turn off the engine.
4. Wait approximately 10 seconds.
5. Restart the engine.
6. Move selector lever to position “D” (for 2nd gear), or move selector lever to position “R” (for reverse gear).
Have the transmission checked at your authorized
Mercedes-Benz Center as soon as possible.

258
Driving instructions
Te ch n i c a l
data
Instruments
and controls Operation
DrivingInstrument
cluster display Practical hints Car care Index
Power assistance
Brakes Excessive use of road salt and other snow melting
chemicals spread on roads during the winter months
may cause a build up of moisture or residue to form on
the braking components. This build up or residue could
cause light corrosion of the braking components if the
vehicle is parked with the brakes cold. Apply steady and
even braking pressure when stopping the vehicle to
warm up and dry the brake components.
Important!
Please pay attention to the function of the brake assist
system (BAS), see page 271.
The condition of the parking brake system is checked
each time the vehicle is in the shop for the required
maintenance service.
If the parking brake is released and the brake warning
lamp in the instrument cluster stays on, the brake fluid
level in the reservoir is too low.
Brake pad wear or a leak in the system may be the
reason for low brake fluid in the reservoir.
Have the brake system inspected at an authorized
Mercedes-Benz Center immediately.
Wa r n i n g !
When the engine is not running, the brake and
steering systems are without power assistance.
Under these circumstances, a much greater effort is
necessary to stop or steer the vehicle.Wa r n i n g !
After driving in heavy rain for some time without
applying the brakes or through water deep enough
to wet brake components or salty road conditions,
the first braking action may be somewhat reduced
and increased pedal pressure may be necessary to
obtain expected braking effect. Be sure to maintain
a safe distance from vehicles in front.Resting your foot on the brake pedal will cause
excessive and premature wear of the brake pads.It can also result in the brakes overheating thereby
significantly reducing their effectiveness. It may
not be possible to stop the vehicle in sufficient time
to avoid an accident.