Mercedes C-Class

W203 since 2000 of release

Repair and operation of the car



Mercedes-Benz
+ Mercedes-Benz cars of class C (W-203)
- Operation manual
   Main bodies and panels of management/control
   Locks, keys and locks. Uniform lock
   Protection against theft
   Simplification of landing and disembarkation from the car
   Seats
   Systems of safety
   Steering wheel, rear-view mirrors
   Memory of provisions of seats, steering wheel and external mirrors
   Control panel
   Multipurpose steering wheel, universal display
   Switches
   Automatic heater and conditioner of air. Ventilation. Independent heater
   Heater of back glass
   Window regulators, roof hatch
   Equipment of salon
   Driving and auxiliary systems
   Precautionary alarm and control lamps, and also messages of the information display on the registered malfunctions
   First-aid kit, fire extinguisher, tool, sign of an emergency stop and compartment of a spare wheel. Sealing of punctures of tires
+ Routine maintenance
+ Engine
+ Cooling system and heating
+ Power supply system and release
+ Engine electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment







Locks, keys and locks. Uniform lock

Locks with the device of remote radio control

1 — the Main key
2 — the unlocking Button
3 — Functions of a key
4 — Control of state of charge of batteries

The device of remote radio control the car can open from long distance, even out of visibility limits.
In order to avoid penetration into the car of strangers to use the device of remote radio control only from the next distance.

Two main keys with the device of remote control belong to elements of a complete set of the car. For the best distinction of the button of unlocking (2) have various colors.

Do not subject keys to the increased electromagnetic radiation. Violations in work are possible!


Unlocking of locks of the car

Switching between the Unlocking of a Door of the Driver and Full Unlocking installations can be made.

Full Unlocking installation

Press the button once, all doors, a cover of the hatch of the fuel tank and a door of a luggage carrier open.

Unlocking of a Door of the Driver installation

Press the button once, the door of the driver and a cover of the hatch of the fuel tank open.

Press the button two times, all doors, a cover of the hatch of the fuel tank and a door of a luggage carrier open.

Unlocking of the car and switching off of the anticreeping alarm system of system (EDW) are confirmed by a disposable blinking of lamps of the index of turn.

If after unlocking of the car neither a door, nor a trunk lid did not open, then approximately in 40 seconds the car is automatically locked.

Locking of locks of the car


Press the button once, all doors, a cover of the hatch of the fuel tank and a door of a luggage carrier are blocked.

Behind closed doors and luggage carrier doors activation of system of check of the authorized driving or operational readiness of the anticreeping alarm system (EDW) after locking are confirmed by a thrice blinking of lamps of the index of turn.

Control of state of charge of batteries

At each use of a key the control light-emitting diode of state of charge of batteries quickly lights up.

If the control light-emitting diode does not light up, it is necessary to make replacement of batteries immediately.

Installation of functions of unlocking of the car

At the same time press the buttons and and hold them pressed within about 6 seconds.

The control light-emitting diode (4) lights up two times.

Switching between the Unlocking of a Door of the Driver and Full Unlocking installations is made.

Replacement of batteries of the main key

You make replacement of batteries in pairs.



Do not throw out the discharged batteries together with household garbage.

Take out an emergency key.

Press a key in an opening (1), then raise a compartment for batteries in the direction of an arrow (2) a little and take out in the direction of an arrow (3).

Insert batteries (4) under a contact spring (5), using the napkin made of cloth which is not leaving fibers. Plus up!

Push a compartment for batteries in the key case before fixing.

Automatic locking of doors during the movement

At a speed over 15 km/h, locking of the uniform lock of the car is made.

When opening one of forward doors unlocking of all locks of the car is made from within provided that the last unlocking of the uniform lock of the car was made by the device of remote control.

Inclusion and switching off of function of automatic locking of the uniform lock of the car was made by the device of remote control.

Inclusion and switching off of function of automatic locking of doors can be made in the VEHICLE menu (CAR) of the Individual Installation system, in the menu of the AUTOMATIC DOOR LOCK installation (AUTOMATIC LOCKING of DOORS). (Address the Part "Individual installation" of the Section the Multipurpose steering wheel, the universal display).

Automatic unlocking of doors at accident

Doors open, since collision of precisely certain force.

Switch of the uniform lock

The switch of the uniform lock is on the average console.

Press the switch:

1 — Locking
2 — Unlocking

The car can be unlocked or locked by the switch of the uniform lock from within. Locking can be made only if forward doors are closed.

If locking was made by a key, then unlocking by the switch is impossible.

Opening or closing of side glasses and the panoramic shifted roof panel (function of opening in summertime of year / comfortable closing)

Function of opening in summertime of year:

opening of the panoramic shifted panel of a roof and lowering of side glasses is made.

Comfortable closing: closing of the panoramic shifted panel of a roof and raising of side glasses is made.

For safety reasons inclusion of function of opening in summertime of year / comfortable closing can be made only from the next distance through infrared function of the device of remote control. Therefore direct an edge of a key to the handle of a door of the driver.

Function of opening in summertime of year:

Unlock the car, hold the button pressed until side glasses and the panoramic shifted panel of a roof do not reach required position.

Opening process interruption: Release the button.

Comfortable closing: Lock the car, hold the button pressed until all glasses and the panoramic shifted roof panel up to the end are closed.

Leaving the car, check whether all side glasses are lifted and whether the panoramic shifted roof panel is closed.

Opening of a door

1. Opening of a door outside

The door gives in to opening outside only if it was previously unlocked.

2. Opening of a door from within

The door gives in to opening as well at the locked car from within. When opening a door of the driver or forward passenger, both doors open.

Unlocking of a door is confirmed by a vydviganiye of the blocking button (3).

Emergency key

1. Unlocking button
2. Emergency key

The driver's door (emergency opening of a door) can be unlocked and locked by an emergency key (2) and the driver's door (emergency opening of a door) is separately locked and the trunk lid is separately locked or released.

Vydvigany an emergency key from the main key:

Displace the button of unlocking (1) in the direction of an arrow and put forward an emergency key (2).

Zadvigany an emergency key on the main key:

Push an emergency key (2) before fixing.

Emergency unlocking of a door of the driver

If the car does not open the device of remote control of a key, unlock a door of the driver an emergency key.

Remarks for the models equipped with the anticreeping alarm system:

The anticreeping alarm system works when opening a door an emergency key. The disturbing alarm system can be switched off only having inserted a key into the switch of ignition or having pressed the buttons or on the main key.

Emergency unlocking of a door of a luggage carrier

The castle cylinder is in deepening for back registration plate.

If the luggage carrier door at malfunction does not give in to opening, then make release of a door of a luggage carrier an emergency key.

Turn an emergency key in situation (1) and pull for the handle.

The remark for the models equipped with the anticreeping alarm system:

The anticreeping alarm system works only when opening a door of a luggage carrier an emergency key. The disturbing alarm system can be switched off only having inserted into the switch of ignition or having pressed the buttons or on the main key.

Opening of a trunk lid

The handle is in deepening for back registration plate.

The trunk lid gives in to opening manually if before it the uniform lock of the car was unlocked.

For opening pull for the handle.

Closing of a door of a luggage carrier

Lower a luggage carrier door, having pulled it for dredging (1) down, and close, having pressed from above.

Emergency unlocking of a cover of the hatch of the fuel tank

Turn a latch of the right side facing and take side facing aside.

Pull for the handle of release (shooter) and at the same time open a cover of the hatch of the fuel tank outside.

Loss of a key or emergency key

Charge to one of HUNDRED "Mercedes-Benzs" blocking of a key and immediately inform insurance company of loss of a key.

At loss of an emergency key it is necessary to replace mechanical elements of locks.

The new or emergency key can be got only on HUNDRED "Mercedes-Benzs".

General comments on system of locks

If the car does not give in to unlocking or locking:

Direct an edge of the main key to the handle of a door of the driver.

Check state of charge of batteries of the main key (materials at the beginning of the Section).

Open the car an emergency key. Insert a key into the lock of ignition and wait until the key in the lock of ignition does not give in to turning.