Replacement of incandescent lamps for outdoor lighting devices (Mercedes-Benz C-Class W203)

The lighting system includes: headlights, fog lights, tail lights, brake lights, reversing lights, turn signals, fog lights, license plate lights and interior lights.

The failure of the incandescent lamp is indicated on the universal display. (The warning system and fault signaling are discussed in Section Warning and indicator lamps, as well as information display messages about registered faults).

There is a risk of injury!

Be careful when replacing high-voltage xenon lamps in headlights! To be on the safe side, turn off the headlight and disconnect the battery. After replacement, briefly turn the headlight on and off to relieve residual voltage. For safety reasons, wear shoes with rubber soles.

Incandescent bulbs and bulb holders can be very hot. Therefore, wait until the light fixture has cooled down before replacing the bulbs.

Keep lamps out of reach of children.

Do not use dropped or scratched lamps as they may break.

Note: Do not handle the glass bulb of the incandescent lamp with your hands. It is best to use napkins or cotton gloves for this purpose. Fingerprints evaporate and settle on the reflector, fogging it. Any accidental stains on the bulb should be removed with a clean, lint-free towel soaked in alcohol.

Incandescent lamps must only be replaced with lamps of the same type.



Replacing the H7 lamp: The lamp is under pressure. Therefore, you should wear protective glasses and gloves.

If the bulb does not light after replacement, turn off and then turn on the lighting again. If the replaced bulb still does not light, contact a service station "Mercedes-Benz".

Attention! Plastic headlight lenses have a protective coating. Under no circumstances should they be cleaned or rubbed with a dry cloth. No cleaners or solvents should be used for this purpose. Such lenses should be cleaned with a clean, soft towel.

Before replacing the lamp, check that the corresponding switch is turned off.

Low beam

Note: To gain easy access to the rear of the headlight, raise and support the rear of the vehicle on stands. Remove the wheel mounting bolts and remove the front of the fender liner, refer to Section Removal and installation the front wing liner.

1. Open the hood.

2. Squeeze the tabs and remove the cover from the back of the headlight.

Note: The low beam lamp is located in the outer chamber of the headlight.

3. Disconnect the lamp connector (1).

4. Halogen headlight: Release the retaining clips (2) and remove the bulb.



5. Models with xenon headlights: Press the locking lock, turn the bayonet ring and remove the xenon bulb from the light.

6. Halogen headlight: Insert the new bulb so that the tabs fit into the corresponding grooves on the housing. Tighten the locking clips.

7. Models with xenon headlights: Insert the new bulb with the groove on the bulb pointing upwards. Install and turn the bayonet ring, making sure the locking lock is in the correct position.

8. Connect the connector to the lamp.

9. Install the cover and secure it.

High beam

Note: To gain easy access to the rear of the headlight, raise and support the rear of the vehicle on stands. Remove the wheel mounting bolts and remove the front of the fender liner, refer to Section Removal and installation the front wing liner.

1. Open the hood.

2. Squeeze the tabs and remove the cover from the back of the headlight.

Note: The low beam lamp is located in the outer chamber of the headlight.

3. Disconnect the connector (1) of the lamp (2).

4. Disconnect the locking bracket (3) and remove the lamp. (4) – parking light.

5. Insert the new lamp so that the tabs enter the corresponding grooves on the housing. Fix the locking bracket.



6. Connect the lamp connector.

7. Replace the cover and secure it.

Parking light

Note: To gain easy access to the rear of the headlight, raise and support the rear of the vehicle on stands. Remove the wheel mounting bolts and remove the front of the fender liner, refer to Section Removal and installation the front wing liner.

1. Open the hood.

2. Press the bar and remove the high beam and parking light lamp cover.



3. Remove the socket (1) with the lamp (2) from the device.

4. Remove the lamp from the socket.

5. Insert a new lamp into the socket.

6. Insert the cartridge into the device.

7. Replace the cover and secure it.

Front direction indicator

1. Open the hood.



2. Turn the socket (1) with the lamp counterclockwise and remove it from the device.



3. Press the bulb in, turn it counterclockwise and remove it from the socket.

4. Insert the new bulb and turn it clockwise.

5. Insert the socket with the bulb into the direction indicator and fix it by turning it clockwise.

Direction indicator in exterior mirrors

1. Remove the mirror trim, refer to Section Removal and installation the exterior rearview mirror trim.



2. Remove the screws (1).

3. Press the turn signal (2) out of the mirror trim from the outside. (3) - connector.



4. Open the clamps (1) and remove the bar (2).

5. Remove the lamp (3) and insert a new lamp.

6. Place the lamp bar on the turn signal (4) and secure it.

7. Insert the turn signal into the exterior mirror trim and secure it. Make sure that the indicator is correctly positioned in the trim.



8. Install the outside mirror trim, refer to Section Removal and installation the exterior rearview mirror trim.

Fog light

1. Remove the front mudguard, refer to Section Removal and installation the front wing liner.



2. Disconnect the connector (1) of the fog lamp.

3. Turn the cartridge (2) counterclockwise and remove it.

4. Remove the lamp from the socket.

5. Insert a new bulb into the socket, insert the socket into the headlight by turning it clockwise, and connect the connector.

6. Install the front mudguard, refer to Section Removal and installation the front wing liner.

License plate light

1. Remove 2 screws (1).

2. Remove the diffuser from the trunk lid or tailgate using a plastic wedge.

3. Remove the damaged spotlight from the plastic holder (2) and replace it with a new one.



4. Check the diffuser gasket and replace if necessary.

5. Insert the diffuser and secure it with screws.

Rear light

The tail light contains the following lamps: brake light, parking light, turn signal and reversing light. The tail light on the driver's side contains a fog light.

Sedan

1. Open the trunk.

2. Open the cover (6) in the trunk trim.

3. Disconnect the lamp connector.

4. Turn the locking lever and remove the lamp strip.

5. Press the lamp in, turn it counterclockwise and remove it.

6. Insert the new bulb and turn it clockwise.

7. Place the lamp bar and turn the locking lever back.

8. Connect the lamp connector.

9. Install the cover into the trunk trim.

Sports Coupe

Station wagon

1. Open the tailgate. Press the button (1), lower and remove the cover (2).

2. Disconnect the rear light connector.

3. Press the two locking bars together (arrows in the illustration) and remove the lamp strip, while carefully pressing down on the support tab (1).

4. Press the bulb in, turn it counterclockwise and remove it.

5. Insert the new bulb and turn it clockwise.

6. Place the lamp bar and secure it.

7. Connect the rear light connector.

8. Insert the cover and fix it.

Additional brake light

The high-mounted additional brake light operates with special light diodes. If the brake light fails, it is replaced as a set.

Sedan

1. Open the trunk and remove the trunk lid trim, refer to Section Removal and installation the trunk lid trim.



2. Remove 4 screws (arrows in the illustration) on the retaining clips (1) of the additional brake light and push the light out of the trunk lid.



3. Disconnect the connector (2) of the additional brake light.

4. Fasten the retaining clips (1) to the new additional brake light (arrows in the illustration). Make sure that the retaining clips are slightly compressed. When installing the clips on the brake light, position them under the stop.

5. Connect the connector.

6. Insert the brake light into the trunk lid so as to avoid damaging the paintwork. Pay attention to the correct position of the sealing gasket.

Note: If necessary, use technical petroleum jelly as a lubricant.

7. Reinstall the trunk lid trim, refer to Section Removal and installation the trunk lid trim.

Station wagon

1. Open the tailgate and remove the trim, refer to Section Removal and installation the tailgate trim.

2. Remove the rear spoiler, refer to Section Removal and installation the rear spoiler.

3. Disconnect the additional brake light connector.

4. Remove the 4 mounting screws and remove the brake light from the rear spoiler. At the same time, carefully remove the sealing tape from the additional brake light.

5. Installation is performed in the reverse order of removal.

Sports Coupe

1. Open the tailgate.



2. Using a plastic wedge, remove the cover (1) from the spoiler trim.

3. Disconnect the additional brake light connector.

4. Loosen the mounting screws and remove the additional brake light from the rear spoiler.

5. Installation is performed in the reverse order of removal. Make sure that the sealing gasket is in the correct position.