technical data MERCEDES-BENZ CLK320 CABRIOLET 2002 A208 User Guide
[x] Cancel search | Manufacturer: MERCEDES-BENZ, Model Year: 2002, Model line: CLK320 CABRIOLET, Model: MERCEDES-BENZ CLK320 CABRIOLET 2002 A208Pages: 346
Page 28 of 346

25 Central locking system
Technical
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.
Notes:
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 37 for separate locking of trunk and page 151 
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.
P80.35-2031-26
1
3
4
2
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Page 29 of 346

26 Central locking system
Technical
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Start lock-out
Important!
Removing the electronic key from the steering lock 
activates the start lock-out. The engine cannot be 
started.
Inserting the electronic key in the steering lock 
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 steering lock, 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 
han d le.  Check  t he b atter ies  of t he elec tr oni c key,  se e 
page 288, or synchronize the remote control, see 
page 290.
•Use the mechanical key to unlock the driver’s door. 
To start the engine, insert the electronic key in the 
steering lock. There could be a slight delay until the 
electronic key can be turned in the steering lock.
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 
steering lock or press buttonŒ or‹ on the 
electronic key.
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Page 30 of 346

27 Central locking system
Technical
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 288 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 remotely 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 ‹.
If the electronic key is inserted in steering lock, the 
vehicle cannot be locked or unlocked with the remote 
control.1Transmit button
‹ Locking
Œ Unlocking
Š Opening trunk (if not separately locked)
2Lamp for battery check (see page 288 for changing 
batteries if it does not light up briefly)
3PANIC button
4Transmitter eye
5Locking tab for mechanical key
P80.35-2032-26
24
3
5
1
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28 Central locking system
Technical
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
6Infrared receiver in driver’s door handle7Infrared receiver in passenger door handle
P80.30-2081-26
6
P80.30-2082-20
7
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Page 32 of 346

29 Central locking system
Technical
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 Œ  o nce  to un lock  dr iver’s  d oor 
and fuel filler flap.
Press transmit button Œ twice to unlock both doors, 
fuel filler flap, and trunk.
Global unlocking mode –
Press transmit button Œ  once to unlock both doors, 
fuel filler flap, and trunk.
Notes:
If the trunk was previously locked separately, it will 
remain locked, see page 37.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 nor trunk is opened, the electronic 
key is not inserted in the steering lock, 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 288 and 290.
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Page 33 of 346

30 Central locking system
Technical
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Choosing global or selective mode on remote control
Press and hold transmit buttons ‹ and Œ 
simultaneously for approx. 6 seconds to reprogram the 
remote control. Battery check lamp will blink two times 
indicating the completed mode change.
Opening the trunk
Press transmit buttonŠ until trunk lid is released.
A minimum height clearance of 5.9 ft. (1.8 m) is 
required to open the trunk lid.Important!
Do not place remote control in trunk since trunk is 
locked when the lid is closed if the vehicle is centrally 
locked.
Note:
If the trunk was previously locked separately, it will 
remain locked, see page 37.
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Page 34 of 346

31 Central locking system
Technical
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Opening and closing windows from outside
Aim transmitter eye of remote control at a door receiver.
To o pen :
Continue to press transmit button Œ after unlocking 
the vehicle.
The windows begin to open after approx. 1 second.
To interrupt opening procedure, release transmit 
button.
To c lo se:
Continue to press transmit button ‹ after locking 
the vehicle.
The windows begin to close after approx. 1 second.
To interrupt closing procedure, release transmit button.Note:
If the windows 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 pressing transmit button), or 
to synchronize the remote control, see page 288 
and 290.
Wa r n i n g !
Never operate the windows 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.
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32 Central locking system
Technical
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 steering lock.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 the driver’s door, 
trunk, and storage compartment 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.
P80.35-2035-26
1
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Page 36 of 346

33 Central locking system
Technical
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Doors
1Opening – pull handle
2Unlocking driver’s door
3Locking driver’s door
4Individual door from inside:
•Push lock button down to lock.
•Pull inside door handle to unlock.Important!
The mechanical key does not operate the central locking 
system or antitheft alarm system.
When you lock the driver’s door with the mechanical 
key, the door lock button should move down.
The passenger door must be locked with the door lock 
button – the driver’s door can only be locked when it is 
closed.
1
1 2 3
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Page 37 of 346

34 Central locking system
Technical
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 door, the trunk and fuel 
filler flap remain locked,
•global unlocking mode, both doors, the trunk and 
fuel filler flap are unlocked.
Notes:
When opening a door, the door window lowers slightly. 
After closing the door, the window closes again.
In case of a malfunction in the central locking system 
the doors can be locked and unlocked individually.To lock, push down lock button and turn mechanical key 
in driver’s door lock to position 3. In addition lock the 
trunk.
To unlock, pull inside door handle and 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 
steering lock or press buttonŒ or‹ on the 
electronic key.
J_A208.book Seite 34 Donnerstag, 31. Mai 2001 9:35 09