2000 MERCEDES-BENZ C-Class lock

Air Recirculation
This mode can be selected to prevent annoying odours or dust from entering the car's interior.
Outside air is not supplied to the car's interior.
To select, press button.
To cancel, press button again.
The system will automatically switch from recirculated air to fresh air
• after approx. 5 minutes at outside temperatures below approx. 40°F (5°C),
• after approx. 30 minutes, at outside temperatures above approx. 40°F (5°C),
• after approx. 5 minutes, if button is pressed.
Notes:
If the windows should fog up from the inside, switch from recirculated air back to fresh air.
At high outside temperatures, the system automatically engages the recirculated air mode thereby
increasing the cooling capacity performance, switching to partially fresh air within 20 minutes.


Dust Filter
Nearly all dust particles and pollen are filtered out before outside air enters the
passenger compartment through the air distribution system.
Notes:
Do not obstruct the air flow by placing objects on the air flowthrough exhaust slots below the rear
window.
Also keep the air intake grille in front of windshield free of snow and debris.


Residual Engine Heat Utilization
With the engine switched off, it is possible to continue heating the interior for a short while.
Air volume and distribution are controlled automatically
To select:
Turn electronic key in steering lock to position 1 or 0 or remove electronic key.
Press button.
This function selection will not activate if the battery charge level is insufficient.
To cancel:
Press button.
The system will automatically shut off
• if you turn electronic key in steering lock to position 2,
• after approx. 30 minutes,
• if the battery voltage drops.

Car Keys

Included with your vehicle are:
• 2 electronic main keys with integrated radio frequency and infrared
remote controls plus slide out and removable mechanical key.
• 1 electronic reserve key without remote control functions, plus
removable mechanical key.


Warning !

When leaving the vehicle always remove the electronic key from the steering lock, 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.

Electronic main key with integrated radio frequency and infrared remote control, plus
slide out and removable mechanical key. The remote control (1) operates all locks on the car.
The mechanical key (2) works only in the driver's door, trunk, and storage compartment locks.

The mechanical key (2) can be removed by sliding it out of the remote control. To do so, move
lock (3) in direction of arrow and slide the mechanical key (2) in direction of arrow (5).
In the case of using the mechanical key for lock operations, it can be extended outward. To do so,
move lock (3) in direction of arrow, slide the mechanical key (2) in direction of arrow (4) until it locks in
place. The remote control transmitter is located in the electronic main key. The infrared receivers are
located in the front door handles.

Note:
Remove the mechanical key from the electronic main key when using valet parking service. To prevent
access to trunk or storage compartments lock them separately.



Electronic reserve key without remote control functions,
plus removable mechanical key.

The electronic reserve key (1) works only in the steering lock.
The mechanical key (2) works only in the driver's door, trunk, and
storage compartment locks. To use the mechanical key (2),
remove it from its electronic reserve key (1).
Note:
We recommend that you carry the electronic reserve key plus mechanical key with you and keep it in a
safe place (e.g. your wallet) so that it is always handy. Never leave the electronic reserve key in the vehicle.


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 dealer.

Start Lock-Out

Important !
Removing the electronic key from the steering lock ac tivates the start lock-out. The engine cannot be started.
Inserting the electronic key in the steer ing lock deactivates 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, the system is not operational. Contact an authorized Mercedes-Benz dealer or
call 1-800-FOR-MERCedes.

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.

Opening the Trunk

A minimum height clearance of 5.9 ft ( 1.8 m) is required to open the trunk lid.
Press transmit button until trunk lid is open.

Important !
Do not place remote control in trunk since trunk is locked again when closing the lid.

Note:
If the trunk was previously locked separately, it will remain locked (see Index).

Opening and Closing Windows and Sliding/Pop-Up Roof from Outside
Aim transmitter eye (5) of remote control at door receivers (6 or 7).
To open:
Continue to press transmit button after unlocking car
The windows and sliding/pop-up roof begin to open after approx. 1 second. To interrupt opening
procedure, release button.
To close:
Continue to press transmit button after locking car

The windows and sliding/pop-up roof begin to close after approx. 1 second. To interrupt closing
procedure, release button.

Warning !
Never operate the windows or 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 for opening
or for closing.

Note:
If the windows and 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 transmitter
(if ok, battery check lamp in transmitter will light briefly when transmitting), or to synchronize the
electronic main key, see Synchronizing remote Control in Index.

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.