MERCEDES-BENZ C320 2002 W203 Owner's Manual
Page 231 of 406
228 Garage door opener
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3. Using both hands, simultaneously push the hand-
held transmitter button and the desired integrated 
remote control button. Do not release the buttons 
until completing step 4.
4. The indicator lamp on the integrated remote control 
will flash, first slowly and then rapidly. When the 
indicator lamp flashes rapidly, both buttons may be 
released (the rapid flashing lamp indicates 
successful programming of the new frequency 
signal). To program the remaining two buttons, 
follow steps 1 through 4.
Note: 
If, after repeated attempts, you do not successfully 
program the integrated remote control device to learn 
the signal of the hand-held transmitter, the garage door 
opener could be equipped with the “rolling code 
feature”.Rolling code programming:
To train a garage door opener (or other rolling code 
devices) with the rolling code feature, follow these 
instructions after completing the “Programming” 
portion of this text. (A second person may make the 
following training procedures quicker and easier.)
1. Locate training button on the garage door opener 
motor head unit. Exact location and color of the 
button may vary by garage door opener brand. If 
there is difficulty locating the transmitting button, 
reference to garage door opener operator’s manual. 
2. Press “training” button on the garage door opener 
motor head unit (which activated the “training 
light”).
Note:
Following step 2, there are 30 seconds to initiate 
step 3.
OM_203.book  Seite 228  Donnerstag, 31. Mai 2001  11:57 11 
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229 Garage door opener
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 3. Firmly press and release the programmed 
integrated remote control transmit button. Press 
and release same button a second time to complete 
the training process. (Some garage door openers 
may required you to do this procedure a third time 
to complete the training.)
4. Confirm the garage door operation by pressing the 
programmed button on the integrated remote 
control transmitter. 
Canadian programming:
During programming, your hand-held transmitter may 
automatically stop transmitting. Continue to press and 
hold the integrated remote control transmitter button 
(note steps 2 through 4 in the “Programming” portion) 
while you press and re-press (“cycle”) your hand-held 
transmitter every two seconds until the frequency 
signal has been learned. The indicator lamp will flash 
slowly and then rapidly after several seconds upon 
successful training.Operation of remote control:
1. Turn electronic key in starter switch to position 1 
or 2.
2. Select and press the appropriate button to activate 
the remote control device. The integrated remote 
control transmitter continues to send the signal as 
long as the button is pressed – up to 20 seconds.
Erasing the remote control memory:
1. Turn electronic key in starter switch to position 1 
or 2.
2. Simultaneously holding down the left and right side 
buttons for approximately 20 seconds, or until the 
control lamp blink rapidly, will erase the codes of all 
three channels.
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Page 233 of 406
OM_203.book Seite 230 Donnerstag, 31. Mai 2001 11:57 11
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231 Contents - Driving
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DrivingControl and operation of
radio transmitters  .....................232
The first 1 000 miles 
(1 500 km)  .................................233
Maintenance  ...................................233
Tele Aid  ...........................................234
Catalytic converter  ........................244
Emission control  ............................245
Starter switch  .................................246
Starting and turning off
the engine  ..................................248
Manual transmission  ....................249
Automatic transmission  ............... 251
Parking brake  .................................260Driving instructions ...................... 261
Drive sensibly – Save Fuel  ....... 261
Drinking and driving  ................ 261
Pedals  .......................................... 261
Power assistance ........................ 262
Brakes .......................................... 262
Driving off ................................... 263
Parking  ........................................ 264
Tires  ............................................. 265
Snow chains  ............................... 267
Winter driving 
instructions  ................................ 268
Deep water  .................................. 270
Passenger compartment  ............271
Traveling abroad  .........................271Cruise control  .................................272
Brake assist system (BAS)  ............275
Antilock brake system 
(ABS)  ........................................... 276
Electronic stability program
(ESP)  ...........................................278
What you should know 
at the gas station  .......................282
Check regularly and 
before a long trip  ......................284
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Page 235 of 406
232 Control and operation of radio transmitters
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Control and operation of radio transmitters
COMAND, radio and telephone 
1 Observe all legal requirements.
Telephones and two-way radio
Radio transmitters, such as a portable telephone or a 
citizens band unit should only be used inside the 
vehicle if they are connected to an antenna that is 
installed on the outside of the vehicle.
Refer to the radio transmitter operation instructions 
regarding use of an external antenna.
Wa r n i n g !
Please do not forget that your primary 
responsibility is to drive the vehicle. Only operate 
the COMAND (Cockpit Management and Data 
System), radio or telephone
1 if road and traffic conditions permit.
Bear in mind that at a speed of just 30 mph 
(approximately 50 km / h), your vehicle is covering 
a distance of approximately 50 feet (approximately 
14 m) every second.
Wa r n i n g !
Never operate radio transmitters equipped with a 
built-in or attached antenna (i.e. without being 
connected to an external antenna) from inside the 
vehicle while the engine is running. Doing so could 
lead to a malfunction of the vehicle’s electronic 
system, possibly resulting in an accident and 
personal injury.
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Page 236 of 406
233 The first 1 000 miles
Te ch n i c a l
data Instruments 
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cluster displayPractical hints Car care Index The first 1 000 miles (1 500 km)
The more cautiously you treat your vehicle during the 
break-in period, the more satisfied you will be with its 
performance later on. Therefore, drive your vehicle 
during the first 1 000 miles (1 500 km) at moderate 
vehicle and engine speeds.
During this period, avoid heavy loads (full throttle 
driving) and excessive engine speeds.
Avoid accelerating by kickdown. It is not recommended 
to brake t he vehicle by  man ually  shif tin g to a lower  gear. 
We recommend that you select positions “3”, “2” or “1” 
only at moderate speeds (for hill driving).
After 1 000 miles (1 500 km) speeds may be gradually 
increased to the permissible maximum.Maintenance
We strongly recommend that you have your vehicle 
serviced by your authorized Mercedes-Benz Center, in 
accordance with the Service Booklet at the times called 
for by the FSS.
Failure to have the vehicle maintained in accordance 
with the Service Booklet at the designated times /
mileage may result in vehicle damage not covered by 
the Mercedes-Benz Limited Warranty.
For information on the Flexible service system (FSS), 
see page 138.
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Page 237 of 406
234 Tele Aid
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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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235 Tele Aid
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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 46 and 47.
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.
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236 Tele Aid
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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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237 Tele Aid
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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.
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