
130 Tele Aid
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Te l e  A i d
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.
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 ematic 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 and properly connected, not 
damaged and cellular and GPS coverage is available. 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.mbusa.com and selecting 
“Tele Aid” (USA only), you will have access to account 
information, remote door unlock and more.
System self-check
Initially, after turning the key in steering lock 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).
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 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. 

131 Tele Aid
Te ch n ica l
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cluster displayPractical hints Car care Index 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 35 and 37.
An emergency call can also be initiated manually by 
opening the cover next to the interior rear view mirror 
labeled “SOS”, then pressing the button (for longer than 
2 seconds) 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 f lash. 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. The Response Center will attempt 
to determine more precisely the nature of the accident 
provided they can speak to an occupant of the vehicle.The Tele Aid system is available if:
•it has been activated and is operational. Activation 
requires a subscription for monitoring services and 
cellular air time
•the relevant cellular phone network and GPS signals 
are available and pass the information on to the 
Response Center.
Note:
Location of the vehicle on a map is possible if the 
vehicle is able to receive signals from the GPS satellite 
network and pass the information on to the Response 
Center.
Wa r n i n g !
If the indicator lamp in the “SOS” button is 
illuminated continuously and there was no voice 
connection to the Response Center established, 
then the Tele Aid system could not initiate an 
emergency call (e.g. the relevant cellular phone 
network is not available).Should this occur, assistance must be summoned 
by other means. 

132 Tele Aid
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Initiating an emergency call manually
Briefly press on cover (1) – the cover will open.Press the SOS button (2) briefly (for longer than 
2 seconds). The indicator lamp in the SOS button (2) 
will flash until the emergency call is concluded. Wait for 
a voice connection to the Response Center.
Close the cover (1) after the emergency call is 
concluded.
P54.30-3044-26
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O
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P54.30-3045-26
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133 Tele Aid
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Roadside Assistance button 
Located below the center armrest cover is the Roadside 
Assistance button. Pressing and holding the 
button (for longer than 2 seconds), will initiate a call to 
a Mercedes-Benz Roadside Assistance dispatcher. The 
button will flash while the call is in progress. The 
Tele Aid system will transmit data generating the 
vehicle identification number, model, color and location 
(subject to availability of cellular and GPS signals).
A voice connection between the Roadside Assistance 
dispatcher and the occupants of the vehicle will be 
established. The nature of the need for assistance can 
then be described. The Mercedes-Benz Roadside assistance dispatcher will 
either dispatch a qualified Mercedes-Benz technician or 
arrange to tow your vehicle to the nearest 
Mercedes-Benz Center. For services such as labor and/
or towing charges may apply. Refer to the Roadside 
Assistance manual for more information. 
These programs are only available in the USA:
•Sign and Drive services: Serv ices su ch as jump sta rt, 
a few gallons of fuel or the replacement of a f lat tire 
with the vehicle spare tire are obtainable,
•Remote Vehicle Diagnostics: This function permits 
the Mercedes-Benz Roadside Assistance dispatcher 
to download malfunction codes and actual vehicle 
data.
Notes:
The indicator lamp in the Roadside Assistance 
button remains illuminated in red for 
approximately 10 seconds during the system self-check 
after turning key in steering lock to position 2 (together 
with the “SOS” button and the Information 
button¡).
Wa r n i n g !
If you feel at any way in jeopardy when in the 
vehicle (e.g. smoke or fire in the vehicle, vehicle in 
a dangerous road location), please do not wait for 
voice contact after you have pressed the emergency 
button. Carefully leave the vehicle and move to a 
safe location. The Response Center will 
automatically contact local emergency officials 
with the vehicle’s approximate location if they 
receive an automatic “SOS” signal and cannot make 
voice contact with the vehicle occupants. 

134 Tele Aid
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See system self-check on page 130 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 voic e connec tion to th e Response Cente r establ ish ed, 
then the Tele Aid system could not initiate an Roadside 
Assistance call (e.g. the relevant cellular phone network 
is not available).
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 
t h e  C l i e n t  A s s ista n c e  C e nt e r. T h e  b u t to n  w il l  f l a sh  w h i l e  
the call is in progress. The Tele Aid system will transmit 
data generating the vehicle identification number, 
model, color and location (subject to availability of 
cellular and GPS signals).
A voice connection between the Client Assistance 
Center representative and the occupants of the vehicle 
will be established. Information regarding the operation 
of your vehicle, the nearest Mercedes-Benz Center or 
Mercedes-Benz USA products and services is available 
to you.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).
Notes:
The indicator lamp in the Information button¡ 
remains illuminated in red for approximately 
10 seconds during the system self-check after turning 
key in steering lock to position 2 (together with the 
“SOS” button and the Roadside Assistance button).
See system self-check on page 130 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 
ava il ab l e ) . 

135 Tele Aid
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 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 
h ave t he system checked or contac t t he 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 (alternating) tone will be heard, 
and the appropriate indicator lamp will f lash. If certain 
information such as vehicle identification number or 
client information is not available, the operator may 
need to retransmit. During this time you will hear a chirp and voice contact will be interrupted. Voice 
contact will resume once the retransmission is 
completed. Once a call is concluded, a chirp will be 
heard and the appropriate indicator lamp will stop 
f lashing. The audio system operation will resume.
Important!
If the indicator lamp continues to flash or the system 
does not reset, contact the Response Center at 
1-800-756-9018 (in the USA) or 1-888-923-8367 (in 
Canada), or Mercedes-Benz Client Assistance at 
1-800-FOR-MERCedes (1-800-367-6372) in the USA or 
Customer Service at 1-800-387-0100 in Canada.
Notes:
The indicator lamp in the respective button flashes until 
the call is concluded and this can only be completed by 
a Response Center or Client Assistance Center 
representative.
When a Tele Aid call has been initiated, the audio 
system is muted and the selected mode (radio, tape or 
CD) pauses. The optional cellular phone (if installed) 
switches off. If you must use this phone, the vehicle 
must be parked. Disconnect the coiled cord and place 
the call. 

136 Tele Aid
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data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Remote door unlock
In t he c ase you  have your vehicle locked  unintentionally 
(e.g. key inside vehicle), and the reserve key is not 
handy, contact the Mercedes-Benz Response Center at 
1-800-756-9018 (in the USA) or 1-888-923-8367 (in 
Canada). You will be asked to provide your password 
which you provided when you completed the subscriber 
agreement.
Then return to your vehicle and pull outside trunk 
handle for a minimum of 20 seconds.
The Response Center will then unlock your vehicle with 
the remote door unlocking feature.
Note:
The remote door unlock feature is available if the 
relevant cellular phone network is available.
The SOS button will flash to indicate receipt of the door 
unlock command. Once the vehicle is unlocked, a 
Response Center specialist will attempt to establish 
voice contact with the vehicle occupants.
If  th e trunk h andl e was pull ed for more th an 20 second s 
before door unlock authorization was received by the 
Response Center, you must wait 15 minutes before 
pulling the trunk handle again.Stolen vehicle tracking services
In the event your vehicle was stolen, report the incident 
to the police who will issue 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. 

137 Tele Aid
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 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 !
The Tele Aid control unit is located under the 
driver’s seat. If there is accumulation of water or 
other liquid in this area, the Tele Aid control unit 
could suffer an electrical short circuit making the 
system inoperative. In this case the indicator lamp 
in the “SOS” button does not illuminate during or 
remains illuminated after the system self-check. 
Have the system checked at the nearest 
Mercedes-Benz Center as soon as possible.