MERCEDES-BENZ C230 KOMPRESSOR COUPE 2002 CL203 Owner's Guide

28 Central locking system
Te ch n i c a l
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Ve h i c l e k e y s
Included with your vehicle are 2 electronic keys with
integrated radio frequency and infrared remote controls
plus removable mechanical key.
The locking tabs for the mechanical key portion of the
two electronic keys are a different color to help
distinguish it.
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the starter switch, and lock
your vehicle. Do not leave children unattended in
the vehicle, or
with access to an unlocked vehicle. Unsupervised
use of vehicle equipment may cause serious
personal injury.

29 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Electronic key
The electronic key has an integrated radio frequency
and infrared remote control, plus removable mechanical
key.
The remote control (1) operates all locks on the vehicle.
The mechanical key (2) works only in the driver’s door,
trunk, and glove box lock.When using the mechanical key (2) for lock operations,
it can be removed by sliding it out of the remote control.
To do so, move locking tab (3) to the right and slide the
mechanical key (2) in direction of arrow (4).
The remote control transmitter is located in the
electronic key.
The infrared receivers are located in the door handles.
Note:
Remove the mechanical key from the electronic key
when using valet parking service. To prevent access to
trunk or storage compartments lock them separately
and retain the mechanical key.
See page 41 for separate locking of trunk and page 207
for locking of glove box.
Obtaining replacement keys
Your vehicle is equipped with a theft deterrent locking
system requiring a special key manufacturing process.
For security reasons, replacement keys can only be
obtained from your authorized Mercedes-Benz Center.

30 Central locking system
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Start lock-out
Important!
Removing the electronic key from the starter switch
activates the start lock-out. The engine cannot be
started.
Inserting the electronic key in the starter switch
deactivates the start lock-out.
Note:
In case the engine cannot be started (vehicle’s battery is
in order), the system is not operational. Contact an
authorized Mercedes-Benz Center or call 1-800-FOR-
MERCedes (in the USA), or 1-800-387-0100 (in Canada).General notes on the central locking system
If the electronic key is inserted in the starter switch, the
vehicle cannot be locked or unlocked with the remote
control.
If the vehicle cannot be locked or unlocked:
•Aim transmitter eye at a receiver of either door
handle. Check the batteries of the electronic key, see
page 351, or synchronize the electronic key, see
page 353.
•Use the mechanical key to unlock the vehicle. To
start engine, insert the electronic key in the starter
switch. There could be a slight delay until the
electronic key can be turned in the starter switch.
Important!
When unlocking the driver’s door with the mechanical
key, the exterior lamps will flash and the alarm will
sound.
To cancel the alarm, insert the electronic key in the
starter switch or press buttonŒ or‹ on the
electronic key.

31 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Central locking system
Radio frequency and infrared remote control
The electronic key has an integrated radio frequency
and infrared remote control.
Due to the extended operational range of the remote
control, it could be possible to unintentionally lock or
unlock the vehicle by pressing the transmit button. If
one of the transmit buttons is pressed, the battery check
lamp lights up briefly – indicating that the batteries are
in order. See page 351 for checking batteries.
The vehicle doors, trunk and fuel filler flap can be
centrally locked and unlocked via remote control.
Opening and closing the windows and panorama
sliding/pop-up roof can only be done with the infrared
portion of the remote control. Aim transmitter eye at a
receiver (6 or 7), press and hold transmit button Œ
or ‹, seepage34.
If the electronic key is inserted in starter switch, the
vehicle cannot be locked or unlocked, and the trunk lid
cannot be opened with the remote control.1Transmit button
‹ Locking
ΠUnlocking
2Lamp for battery check (see page 351 for changing
batteries if it does not light up briefly)
3PANIC button
4Transmitter eye
5Locking tab for mechanical key
P80.35-2033-26
2
1
4
3
5

32 Central locking system
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6Infrared receiver in driver’s door handle7Infrared receiver in passenger door handle
P72.10-2313-266
P72.10-2315-26
7

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.

34 Central locking system
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Opening and closing windows and
panorama sliding / pop-up roof from outside
(summer opening / convenience feature)
Aim transmitter eye of remote control at the door
receiver.
Summer opening:
The panorama sliding / pop-up roof and all side windows
can be opened automatically.
Continue to press transmit button Πafter unlocking
the vehicle.
The windows and panorama sliding / pop-up roof begin
to open after a short time.
To interrupt opening procedure, release transmit
button.
Convenience feature:
The panorama sliding / pop-up roof and the side
windows can be closed.
Continue to press transmit button ‹ after locking
the vehicle.
The windows and panorama sliding / pop-up roof begin
to close after approximately 1 second.To interrupt closing procedure, release transmit button.
Ensure that all side windows and the panorama
sliding / pop-up roof are properly closed before leaving
the vehicle.
Note:
If the windows and panorama sliding / pop-up roof
cannot be operated automatically by pressing the
transmit button of the remote control 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 transmitting), or to synchronize the
remote control, see page 351 and 353.
Wa r n i n g !
Never operate the windows or panorama sliding /
pop-up roof if there is the possibility of anyone
being harmed by the opening or closing procedure.In case the procedure causes potential danger, the
procedure can be immediately halted by releasing
the remote control button. To reverse direction of
movement press Œ for opening or ‹ for
closing.

35 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Panic button
To activate press and hold button (1) for at least one
second. An audible alarm and blinking exterior lamps
will operate for approximately 3 minutes.
To deactivate press button (1) again, or insert electronic
key in starter switch.Note:
For operation in the USA only: This device complies
with Part 15 of the FCC Rules. Operation is subject to
the following two conditions:
(1) This device may not cause harmful interference, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
Any unauthorized modification to this device could void
to the user’s authority to operate the equipment.
Mechanical keys
The mechanical keys work only in driver’s door, trunk,
and glove box locks.
Notes:
The mechanical key does not operate the central locking
system or antitheft alarm system.
The fuel filler flap cannot be locked or unlocked with
the mechanical key.
If the fuel filler flap cannot be opened, see page 354.
P80.35-2034-26

36 Central locking system
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Doors
1Opening – pull handle
2Unlocking driver’s door
3Locking driver’s door
Important!
The mechanical key does not operate the central locking
system or antitheft alarm system.4Individual door from inside:
Push lock button down to lock.
5Individual door from inside:
Pull handle to unlock.
When you lock the driver’s door with the mechanical
key, the door lock button should move down.
Each individual door must be locked with the respective
door lock button – the driver’s door can only be locked
when it is closed.
P72.10-2314-26
1
2
3
4
5
P72.10-2316-26

37 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index If the vehicle has previously been locked from the
outside, opening a door from the inside will trigger the
alarm. When opening a door while the central locking
system is in the:
•selective unlocking mode, only that individual door
is unlocked. The remaining doors, the trunk and
fuel filler flap remain locked.
•global unlocking mode, all doors, the trunk and fuel
filler flap are unlocked.
Notes:
In case of a malfunction in the central locking system
the doors can be locked and unlocked individually.
To lock, push down lock buttons or turn mechanical key
in driver’s door lock to position 3. In addition lock the
trunk.To unlock, pull inside door handles or turn mechanical
key in driver’s door lock to position 2.
When unlocking the driver’s door with the mechanical
key, the exterior lamps will flash and the alarm will
sound.
To cancel the alarm, insert the electronic key in the
starter switch or press buttonŒ or‹ on the
electronic key.