2002 MERCEDES-BENZ C230 KOMPRESSOR COUPE index

231 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Initiating an emergency call manually
Briefly press on cover (1) – the cover will open. Press the SOS button (2) briefly. 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.

232 Tele Aid
Te ch n i c a 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
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:
•Sign and Drive services: Services 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
receive an automatic “SOS” signal and cannot make
voice contact with the vehicle occupants.

233 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical 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
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).

234 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical 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
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

235 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 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
flashing. The COMAND system operation will resume
(only vehicles with COMAND).
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 Customer 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. Calls can only be terminated by a
Response Center or Customer Assistance Center
representative except Roadside Assistance and
Information calls, which can also be terminated by
pressing ìbutton on the multifunction steering
wheel.
When a Tele Aid call has been initiated, the audio
system or the COMAND system audio (only vehicles
with COMAND) 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. The navigation system (if engaged) will
continue to run. The display in the instrument cluster is
available for use and spoken commands are only
available by pressing the RPT button on the COMAND
unit. A pop-up window will appear in the COMAND
display to indicate that a Tele Aid call is in progress.

236 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Remote door unlock
In the case you have your vehicle locked unintentionally
(e.g. key inside vehicle), and no other key is available,
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 recessed handle in
trunk lid for minimum of 20 seconds until the “SOS”
button is flashing. The message “EMERGENCY CALL –
CALL CONNECTED” appears in the multifunction
display.
As an alternative, you may unlock the vehicle via
Internet using the ID and password sent to you shortly
after the completion of your Acquaintance Call.
The Response Center will then unlock your vehicle with
the remote door unlocking feature.Notes:
The remote door unlock feature is available if the
relevant cellular phone network is available.
The SOS button will flash and the message
“EMERGENCY CALL – CALL CONNECTED” will appear
in the multifunction display 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 the recessed handle in trunk lid was pulled for more
than 20 seconds before door unlock authorization was
received by the Response Center, you must wait
15 minutes before pulling recessed handle again.

237 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical 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.

238 Catalytic converter
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Catalytic converter
Your Mercedes-Benz is equipped with monolithic type
catalytic converters, an important element in
conjunction with the oxygen sensors to achieve
substantial control of the pollutants in the exhaust
emissions. Keep your vehicle in proper operating
condition by following our recommended maintenance
instructions as outlined in your Service Booklet.
Caution!
To prevent damage to the catalytic converters, use only
premium unleaded gasoline in this vehicle.
Any noticeable irregularities in engine operation should
be repaired promptly. Otherwise, excessive unburned
fuel may reach the catalytic converter causing it to
overheat, which could start a fire.
Wa r n i n g !
As with any vehicle, do not idle, park or operate
this vehicle in areas where combustible materials
such as grass, hay or leaves can come into contact
with the hot exhaust system, as these materials
could be ignited and cause a vehicle fire.