2000 MERCEDES-BENZ C-Class Trunk central locking

Instruments and Controls
For more detailed descriptions see Index.
For adjustments of air outlets, refer to Automatic
Climate Control (see Index).
1. Side air outlet, adjustable
2. Air volume control for side air outlet
3. Exterior lamp switch
4. Parking brake release
5. Hood lock release
6. Parking brake pedal
7. Steering wheel adjustment lever
8. Combination switch
9. Cruise control switch
10. Horn, airbag
11. Instrument cluster
12. Steering lock with ignition/starter switch
13. Center air outlets, adjustable
14. Air volume control for center air outlets
15. Glove box (illuminated with electronic
key in steering lock position 1 or 2)
16. Left front seat heater switch

17. ASR or ESP control switch
18. Switch for rear seat head restraints
19. Hazard warning flasher switch
20. Central locking switch,
21. Switch for Tow-Away Protection
Indicator lamp for antitheft alarm system
22. Right front seat heater switch
23. Climate control (C 230)
Automatic climate control (C 280,
C43 AMG)
Rear window defroster switch
24. Audio system
25. Open storage compartment
26. Ashtray with lighter
27. Storage/eyeglasses compartment
28. Power window switches, front doors
29. Power window safety switch, rear doors
30. Airbag off indicator lamp
31. Power window switches, rear doors
32. Trunk lid release switch
33. Mirror adjustment switch

Central Locking System

Radio Frequency and Infrared Remote Control
The electronic main key has an integrated radio 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.
A command received by the central locking system is acknowledged by the function control lamp blinking once. The
vehicle doors, trunk and fuel filler flap can be centrally locked and unlocked via remote control. Opening and closing
the windows and sliding/pop-up roof can only be done with the infrared portion of the remote control. Aim transmitter
eye (5) at a receiver (6 or 7) press and press transmit button. With vehicle centrally locked, the trunk can also be
opened
by using the remote control. If the electronic key is inserted in steering lock, the vehicle cannot be locked or unlocked
with the remote control.




1. Transmit button
Locking
Unlocking
Opening trunk (if not key locked)
2. PANIC button
3. Release button for mechanical key
4. Lamp for battery check and function control
5. Transmitter eye
6. Infrared receiver in driver's door handle

Locking and Unlocking

Unlocking:
Press transmit button . All turn signal lamps blink once to indicate that the vehicle is unlocked.
The remote control can be programmed for two kinds of unlocking methods (see below):
Selective unlocking mode:
Press transmit button once to unlock driver's door and fuel filler flap.
Press transmit button twice to unlock doors, fuel filler flap, and trunk.
Global unlocking mode:
Press transmit button once to unlock doors, fuel filler flap, and trunk.

Notes:
If the trunk was previously locked separately, it will remain locked (see Index). 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). The vehicle is automatically locked again, if within 40
seconds of unlocking with the remote control, neither door or trunk is opened, the electronic key is
not inserted in the steering lock, or the central locking switch is not activated.


Locking:
Press transmit buttononce. All turn signal lamps blink three times to indicate that the vehicle is
locked


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 transmitter (if ok, battery check lamp in transmitter will light briefly
when
transmitting) or to synchronize the system, see Remote Control in Index.

Choosing Global or Selective Mode on Remote Control
Press and hold transmit buttons and simultaneously for five seconds to reprogram the
remote control. Battery check lamp will blink two times indicating the completed mode change.

Panic Button

To activate press and hold button (1) for at least one second.
The alarm will last for approximately 3 minutes in form of blinking
exterior lamps, and an alarm will sound
To deactivate press button (1) again, or insert electronic key in
steering lock.


Note:
For operation in the USA only: This devise 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 the user's authority to operate the equipment.



Mechanical Keys
The entire vehicle may be locked or unlocked by using either the mechanical key in driver's door or trunk lock, or
central locking switch located in center console. The central locking system also locks or unlocks the fuel filler flap.

Note:
If the fuel filler flap cannot be opened, refer to Fuel Filler Flap, Manual Release (see Index).

Doors

1. Opening - pull handle
2. Unlocking
3. Locking
4. Individual door from inside:
• Push lock button down to lock.
• Pull lock button up to unlock.
When you lock the car, all door lock buttons should move down. If any one stays up, the respective
door is not properly closed. You should then unlock the car, open and reclose this door, and lock the
vehicle again.
Each individual door can be locked with door lock button - the driver's door can only be locked when
it is closed. If the car has previously been locked from the outside, only the door being opened from
the inside will unlock, and the alarm will corne on. The remaining doors, the trunk lid and fuel filler
flap remain locked.

Notes:
In case of a malfunction in the central locking system the doors can be locked and unlocked
individually. To lock, turn mechanical key to position 3 or push down lock buttons. To unlock, turn
mechanical key to position 2 or pull up lock buttons.

Central locking switch

1. Locking
2. Unlocking

The central locking switch is located in the center console. The doors can only be locked with the central locking
switch, if the front doors are closed. If the car was previously locked with the remote control or mechanical key, the
doors and trunk cannot be unlocked with the central locking switch. If the vehicle was previously locked with the
central locking switch, while in the selective remote control mode, only the door opened from the inside is unlocked. If
the vehicle was previously locked with the central locking switch, while in the global remote control mode, the
complete vehicle is unlocked when a front door is opened from the inside.

Note
The fuel filter flap cannot be locked or unlocked with the central locking switch.

Automatic Central Locking
The central locking switch also operates the automatic central locking.
To activate:
With electronic key in steering lock position 2 hold upper portion of switch (1) for a minimum of 5 seconds.
To deactivate:
With electronic key in steering lock position 2 hold lower portion of switch (2) for a minimum of 5 seconds.
With the automatic central locking system activated, the doors and trunk are locked at vehicle speeds of approx. 9
mph (15 km/h) or more. The fuel filler flap remains unlocked.

Notes:
If doors are unlocked with the central locking switch after activating the automatic central locking, and neither door is
opened, then the doors remain unlocked even at vehicle speeds of approx. 9 mph (15 km/h) or more. Opening a door
from the inside at speeds of approx. 9 mph (15 km/h) or less with the automatic central locking activated, the door will
again be automatically locked at speeds of approx. 9 mph (15 km/h) or more.

Important
When towing the vehicle, or with the vehicle on a dynamometer test stand, please, note the following:
With the automatic central locking activated and the electronic key in steering lock position 2, the vehicle doors
lock if the left front wheel as well as right rear wheel are turning at vehicle speeds of approx. 9 mph (15 km/h) or
more. to prevent the vehicle door locks from locking, deactivate the automatic central locking.

Emergency Unlocking in Case of Accident
The doors unlock automatically a short time after an accident (this is intended to aid rescue and exit).
However, the electronic key must still be in the steering lock.

Trunk

0. Neutral position - push to open
1. Unlocking
2. Locking (detent)
3. Separate locking of trunk - remove mechanical key in this position.

When the trunk is separately locked, it remains locked when centrally unlocking
the vehicle. To deny any unauthorized person access to the trunk, lock it
separately. Leave only the electronic main key less its mechanical key with the
vehicle.
Notes:
In case of a malfunction in the central locking system the trunk can be locked and unlocked individually. To lock, turn
mechanical key to position 2 or 3. To unlock and open the trunk lid, turn mechanical key to position 1, hold and push
to open. If the fuel filler flap cannot be opened, refer to Fuel Filler Flap, Manual Release (see Index).

Important !
Do not place mechanical key inside trunk, since trunk is locked again when closing the
lid. Lower trunk lid using handle (4) and close it with hands placed flat on trunk lid.

Sliding/Pop-Up Roof (optional)

1. to slide roof open
2. to slide roof closed
3. to raise roof at rear
4. to lower roof at rear


Turn electronic key in steering lock to position 1 or 2. The switch is illuminated when the
exterior lamps are switched on (except standing lamps). With the roof closed or tilted open,
a screen can be slid into the roof opening to guard against sun rays. When sliding the roof
open, the screen will also retract.


Warning !
When closing the sliding/ pop-up roof, be sure that there
is no clanger of anyone being harmed by the closing
procedure. The closing procedure can be immediately
reversed by either moving the switch in direction
(1) or (3), turning the mechanical key to the unlocking
position, or pressing button on the remote control,
and holding it.
Notes:
The sliding/pop-up roof can be opened or closed manually should an electrical malfunction occur,
refer to Sliding/Pop-Up Roof, Emergency Operation in Index. The sliding/pop-up roof can also be
closed with the mechanical key or infrared remote control while locking the vehicle doors or trunk
(see Central Locking System in Index).


Synchronizing Sliding/Pop-Up Roof
If the power supply was interrupted (battery disconnected or empty), or if the sliding/pop-up roof is
blocked during closing/opening procedure, the system has to be synchronized. To do so, turn electronic
key in steering lock to position 2, move and hold switch in direction (3) until the sliding/pop-up roof is
completely raised at rear, and hold for additional 1 second.