
7 IntroductionProduct information
Kindly observe the following in your own best interest:
We recommend using Mercedes-Benz original parts as well as conversion parts and accessories 
explicitly approved by us for your vehicle model.
We have tested these parts to determine their reliability, safety and their special
suitability for Mercedes-Benz vehicles.
We are unable to make an assessment for other products and therefore cannot be held responsible 
for them, even if in individual cases an official approval or authorization by governmental or other 
agencies should exist. Use of such parts and accessories could adversely affect the safety, performance
or reliability of your vehicle. Please do not use them.
Mercedes-Benz original parts as well as conversion parts and accessories approved by us are available 
at your authorized Mercedes-Benz Center where you will receive comprehensive information, also on 
permissible technical modifications, and where proper installation will be performed.
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Press the “WB” key. The last weather band station is 
tuned in.
Use buttons  -   to select a different station. If 
the station cannot be received, the next available station 
is selected automatically.
Press button   or  . The next available station is 
tuned in. The message “WB NONE” appears if no station 
can be received.
Station memory
Ten stations each in the AM and FM bands can be stored 
via the alpha-numeric keypad. The   button 
corresponds to location 10. Weatherband (WB) 
channels 1 to 7 are preset at the factory and can be 
retrieved via the alpha-numeric keypad, but cannot be 
changed.Storing stations automatically (Autostore)
Press the “AS” key until the 
word “SEARCH” is displayed. 
The ten strongest stations are 
stored automatically, with 
 having the strongest 
signal.
If less than 10 stations are available within receiving 
range, only those will be stored.
Pressing a station selection button without a stored 
station will not display a frequency for approximately 
2 seconds. Thereafter the station selected last will be 
displayed.
Note:
Autostore memory is in addition to the regular station 
memory. Previously stored stations are not erased.
Briefly press “AS” to leave the Autostore and return to 
manual presets. Press “AS” again to call up Autostore.
7PQ RS
0OPR
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Emergency call
Important!
If you press button   for more than 1 second, the 
number stored in memory location 1 (for example 911) 
will be dialed.
The 911 emergency call system is a public service. 
Using it without due cause is a criminal offence.
You can make an emergency call to an emergency 
rescue station with a mobile communications network.
The emergency call will be placed as long as the 
corresponding mobile communications network is 
available. To do this, switch the telephone on if you have 
not already done so.
The call will also be placed if the unlock-code is not 
entered.Emergency calls may not be possible with all telephone 
networks or if certain network services and/or 
telephone functions are active. Check with your local 
network operating company. It may take some time to 
set up an emergency call.
To use this function you must ensure that the number 
stored in memory location 1 is the number to be dialed 
in case of emergency.
Note:
If an emergency call cannot be 
connected, the message 
“SYSTM BUSY” appears.
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Tele Aid 
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 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, 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 buttonæ and for 
lowering press buttonç.
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, 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. 
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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). The message 
“EMERGENCY CALL – CALL FAILED” appears in 
the multifunction display for approx. 10 seconds.Should this occur, assistance must be summoned 
by other means.
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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 
message “ROADSIDE ASSISTANCE – CONNECTING 
CALL” will appear in the multifunction display. When 
the connection is established, the message “ROADSIDE 
ASSISTANCE – CALL CONNECTED” appears in the 
multifunction display. 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. When a voice connection is established the 
audio system mutes and the message “TELE AID –  
ROADSIDE ASSISTANCE CALL ACTIVE” appears in the 
multifunction display. 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:
•S ign  an d  Drive s erv ices : Ser vi ces  such as  jump start,  
a few gallons of fuel or the replacement of a flat 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.
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 
rec eive a n a utom at ic  “SO S” si gna l a nd  ca nn ot ma ke 
voice contact with the vehicle occupants.
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239 Tele Aid
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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 234 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 
ìbutton 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 (subject 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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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 234 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 
ìbutton 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 (alternating) 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 
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