ECO mode MERCEDES-BENZ C230 KOMPRESSOR COUPE 2002 CL203 Owner's Manual

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.

33 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Locking and unlocking with remote control
Unlocking:
Press transmit button Œ. All turn signal lamps blink
once to indicate that the vehicle is unlocked.
The remote control can be programmed for two kinds of
unlocking modes (see below):
Selective unlocking mode –
Press transmit button Œonce to unlock driver’s door
and fuel filler flap.
Press transmit button Πtwice to unlock all doors,
fuel filler flap, and trunk.
Global unlocking mode –
Press transmit button Œonce to unlock all doors,
fuel filler flap, and trunk.
Notes:
The presently active unlocking mode (selective or
global) can only be determined by unlocking the vehicle
with the remote control (see below for changing mode).If within 40 seconds of unlocking with the remote
control, neither door or trunk is opened, the electronic
key is not inserted in the starter switch, or the central
locking switch is not activated, the vehicle will
automatically lock.
Locking:
Press transmit button ‹ once. All turn signal lamps
blink three times to indicate that the vehicle is locked. If
they do not blink three times, a door or trunk is not
properly closed.
Note:
If the vehicle cannot be locked or unlocked by pressing
the transmit button, then it may be necessary to change
the batteries in the electronic key (if ok, battery check
lamp in electronic key will light briefly when pressing
transmit button) or to synchronize the remote control,
see pages 351 and 353.
Choosing global or selective mode on remote control
Press and hold transmit buttons‹ andŒ
simultaneously for five seconds to reprogram the
remote control. Battery check lamp will blink two times
indicating the completed mode change.

73 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index The operational readiness of the airbag system is
verified by the indicator lamp “SRS” in the instrument
cluster when turning the electronic key in starter switch
to position 1. When turning the electronic key in starter
switch to position 2 the indicator lamp “SRS” in the
instrument cluster comes on. If no fault is detected, the
lamp will go out when the engine is running. After the
lamp goes out, the system continues to monitor the
components and circuitry of the airbag system and will
indicate a malfunction by coming on again. If the lamp
does not come on at all or if it fails to extinguish or if it
comes on thereafter, a malfunction in the system has
been detected.
The following system components are monitored or
undergo a self-check: crash-sensor(s), airbag ignition
circuits, front seat belt buckles, emergency tensioning
retractors, seat sensor.
Have the system checked at your authorized
Mercedes-Benz Center immediately.
In the operational mode, after the indicator lamp has
gone out following the initial check, interruptions or
short circuits in the airbag ignition circuit and in the
driver and front passenger seat belt buckle harnesses,
and low voltage in the entire system are detected and
indicated.Note:
See page 285 for information on the supplemental
restraint system (SRS) indicator lamp.
Wa r n i n g !
In the event a malfunction of the “SRS” is indicated
as outlined above, the “SRS” may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Center immediately to have the
system checked; otherwise the “SRS” may not be
activated when needed in an accident, which could
result in serious or fatal injury, or it might deploy
unexpectedly and unnecessarily which could also
result in injury.

123 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index To return menu “SETTINGS” (2) to its factory
setting:
•Call up the individual setting preliminary
display (1) or display (2).
•Press the reset knob on the instrument cluster
(see page 96) for approximately 3 seconds.
Display (3) will appear.
•Press the reset knob on the instrument cluster once
more. The menu “SETTINGS” is reset to factory
settings, acknowledged by display (4).
The individual setting preliminary display (1) will
appear if you do not press the reset knob on the
instrument cluster within about 5 seconds. The
setting menus will not be reset.Note:
For safety reasons, the individual setting “LIGHT
CIRCUIT HEADLAMP MODE” in menu “LIGHTING”
cannot be reset while driving, see page 131. If an
attempt is made, the message “LIGHTING” – “CANNOT
BE COMPLETELY RESET TO FACTORY SETTINGS
WHILE DRIVING” will be displayed.

131 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index To return menu “LIGHTING” (3 to 6) to its factory
setting:
•Call up menu (3 to 6).
•Press the reset knob on the instrument cluster (see
page 96) in the instrument cluster for approximately
3 seconds. Display (7) will appear.
•Press the reset knob on the instrument cluster once
more. The individual setting menu “LIGHTING” is
reset to factory settings, acknowledged by
display (8).
The individual setting display “SETTINGS” (2) will
appear if you do not press the reset knob on the
instrument cluster within about 5 seconds. The
setting menus will not be reset.Note:
For safety reasons, the individual setting “LIGHT
CIRCUIT HEADLAMP MODE” in menu “LIGHTING”
cannot be reset while driving. If an attempt is made, the
message “LIGHTING” – “CANNOT BE COMPLETELY
RESET TO FACTORY SETTINGS WHILE DRIVING” will
be displayed.

133 Multifunction steering wheel, multifunction display
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Preliminary display of the individual settings
2“SETTINGS” – in this options menu you can call up
the individual setting menu “VEHICLE”.
Pressing buttonæ orç on the multifunction
steering wheel controls the selection marker.
3“PRESS BUTTON IN AUDIO MODE”
– radio adjustment “STATION SEARCH”: use
thej ork button to select a frequency.
– radio adjustment “MEMORY”: use the j
ork button to select a stored station (preset
memory).
4“AUTOMATIC DOOR LOCK”, see automatic central
locking on page 40.
5Returning the individual setting menu “VEHICLE”
to the factory setting.
6Acknowledgment.
Press the è or ÿ button repeatedly until the
individual setting preliminary display (1) appears.
Press the j or k button until the setting menu
“SETTINGS” (2) is displayed.
Press buttonæ orç until the individual setting
menu “VEHICLE” is selected by the selection marker.Press the j or k button until the required
display (3 to 4) is displayed. Pressing the æ orç
button controls the selection marker. The settings made
are stored and applied immediately.
The individual setting preliminary display (1) will
appear again after you have run through all the setting
menus. Pressing the è or ÿ button displays the
next or previous system.
To return menu “VEHICLE” (3 and 4) to its factory
setting:
•Call up menu (3 or 4).
•Press the reset knob on the instrument cluster (see
page 96) in the instrument cluster for approximately
3 seconds. Display (5) will appear.
•Press the reset knob on the instrument cluster once
more. The individual setting menu “VEHICLE” is
reset to factory settings, acknowledged by
display (6).
The individual setting display “SETTINGS” (2) will
appear if you do not press the knob for instrument
cluster illumination within about 5 seconds. The
setting menus will not be reset.

143 Exterior lamp switch
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Exterior lamp switch
MOff
UAutomatic headlamp mode, see below.
CParking lamps (also side marker lamps, taillamps,
licence plate lamps, instrument panel lamps)
Canada only: When the engine is running, the low
beam is additionally switched on.BParking lamps plus low beam or high beam
headlamps (combination switch pushed forward).
ˆStanding lamps, right (turn left one stop)
‚Standing lamps, left (turn left two stops)
‡Front fog lamps (pull out one stop) with parking
lamps and/or low beam headlamps on. Green
indicator in lamp switch comes on.
†Rear fog lamp (pull out to second detent) in
addition to the front fog lamps. Yellow indicator in
lamp switch comes on.
Note:
With the electronic key removed and the driver’s door
open, a warning sounds if the vehicle’s exterior lamps
(except standing lamps) are not switched off.
Fog lamps will operate with the parking lamps and / or
the low beam headlamps on. Fog lamps should only be
used in conjunction with low beam headlamps. Consult
your State or Province Motor Vehicle Regulations
regarding allowable lamp operation.
Fog lamps are automatically switched off when the
exterior lamp switch is turned to position M or U.
P82.10-2779-26

146 Exterior lamp switch
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Night security illumination
At low ambient light conditions and with the engine
having been switched off, the exterior lamps (fog lamps
and parking lamps) switch on for added illumination,
(except in daytime running mode). After the last door
has been closed the lamp-on time period commences.
See the individual setting menu “LIGHTING” –
“HEADLAMPS DELAYED SWITCH–OFF” on page 128,
for instructions on how to activate the function.
The lamp-on time period for night security illumination
can be set at several different timed levels from 0 (off) to
60 seconds, see the individual setting menu
“LIGHTING” – “HEADLAMPS DELAYED SWITCH–OFF”
on page 128.Notes:
Within 10 minutes after closing the last door the night
security illumination can be reactivated by opening a
door.
If after switching the engine off, no doors are opened or
if after opening the doors they are not closed, the night
security illumination will switch off automatically
after 60 seconds.
Deactivating night security illumination temporarily:
Turn the electronic key in starter switch to position 0
then to position 2 and back to position 0 again before
getting out of the vehicle. The night security
illumination will not be activated when the door is
opened.

154 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Display and controls
1Air volume
2Temperature control, left
3Temperature control, right
4Air distribution control switch5Rear window defroster, see page 170
6Economy mode, see page 159
Residual engine heat utilization, see page 159
7Air distribution and air volume (automatic)
8Air recirculation, see page 167
9Defrosting, see page 157
Important!
This vehicle is equipped with an air conditioning
system that uses R-134a (HFC: hydrofluorocarbon) as a
refrigerant. Repairs should always be performed by a
qualified technician, and refrigerant should be collected
in a recovery system for recycling.

155 Climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Climate control
The system is always at operational readiness, except
when manually switched off.
The climate control only operates with the engine
running.
The temperature selector should be left at the desired
temperature setting. The temperature selected is
reached as quickly as possible.
The system will not heat or cool any quicker by setting a
higher or lower temperature.
The desired interior temperature can be selected
separately for the left and right side of the passenger
compartment. Adjust the temperature settings in small
increments.
The climate control removes considerable moisture from
the air during operation in the cooling mode. It is
normal for water to drip on the ground through ducts in
the underbody.
The air conditioning will not engage (no cooling) if the
economy mode S is selected, see page 159. Notes:
Do not obstruct the air flow by placing objects on the air
flow-through exhaust slots below the rear window.
Also keep the air intake grill in front of the windshield
free of snow and debris.
The storage compartment between the front seats can be
ventilated. See page 171 for notes on ventilating the
storage space under the armrest in the center console.
The air conditioner switches itself off for its own
protection if refrigerant is lost. No cooling will then take
place. Economy mode S cannot be switched off. Have
the air conditioner checked by a Mercedes-Benz Center
should this happen.
If the vehicle interior has been heated by direct sunlight
and is very hot, ventilate the interior (open door or
windows for a short period) before driving off.
Dust filter
Nearly all dust particles and pollen are filtered out
before outside air enters the passenger compartment
through the air distribution system.