Replacing incandescent lamps (Mercedes-Benz S-Class W140)

Precautionary measures

Warning!

• Incandescent lamps and lamp holders can be very hot. Therefore, wait until the lighting fixture has cooled down before replacing the lamps!
• Keep lamps out of reach of children!
• Do not use dropped or scratched lamps, they may burst!

Replacing the H7 lamp

The incandescent lamp is under pressure, so you should wear protective glasses and gloves.

Headlights with xenon low beam lamps:

There is a risk of injury due to high voltage!

Do not replace xenon lamps yourself. For work on low beam headlights, contact specialists.

Procedure execution order

Before replacing incandescent bulbs, turn off the lights to avoid short circuits.

Handle new lamps only using soft silk paper or thin gloves.

Use only 12V incandescent lamps of the same type and appropriate wattage.

Direction indicators (PY 21 W, yellow)

1. Open the hood.

2. Squeeze the clamp (1) from the engine compartment side and pull the turn signal light housing forward.

3. Turn the bulb holder with the bulb to the left and remove it. Press the bulb, turn it to the left and remove it.

4. Insert the direction indicator housing with the protrusions (3) into the guides (4) and press it back until it locks into place.

Turn signal repeater (WY 5W, yellow)

Removal

1. Move the additional turn signal lamp housing forward and remove.

2. Turn the lamp holder with the incandescent lamp to the left and remove it. Pull the incandescent lamp out of the socket.

Installation

Place the housing of the additional turn signal light on the front, press and secure it at the rear.

Headlight aiming angle

Check the headlight level regularly. The headlight leveling procedure is described in Section Decorative radiator grille - installation details Chapters Body.

Note: On models with xenon lighting, the angle of the headlight optical axes is adjusted automatically.

Headlights

Providing access to lamps in halogen headlights

Providing access to lamps in xenon headlights

Attention! Do not disconnect the plug of the low beam headlights with xenon lamps!

Parking light/one-way parking light

Headlights with halogen lamps

1. Open the hood.

2. After pressing the retainer clip, remove the headlight housing cover (1).



3. Pull out the socket with the lamp.



4. Remove the lamp.

5. Installation is carried out in the reverse order - make sure the cartridge is securely fixed.

Headlights with xenon lamps

1. The procedure is similar to that described above for halogen headlights.





2. When installing, place the cover from below and press it from above until it locks into place.

Low beam, high beam, fog light

Warning! Risk of injury due to high voltage! Do not disconnect the plug for the low beam headlights with xenon lamps.

1. Open the hood.

2. Remove the cover above the headlight.

3. After pressing the retainer clip, remove the headlight housing cover (1) or (2).


4. Disconnect the plug from the corresponding lamp.







5. Release the retaining spring and remove the lamp.

6. Insert the new bulb so that the base fits into the recess in the socket.

7. Place the headlight housing cover at the bottom and press at the top until it locks into place.

Attention! Rear lights

1. The layout of the rear combination light bulbs is shown in the accompanying illustration.

2. Bend back the access cover panel (7).

3. Turn the lamp holder with the incandescent lamp to the left and remove it.

4. Press the bulb, turn it to the left and remove it.

5. Install the lamp holder by pressing until it locks into place.

License plate lights (With 5 W, spotlight)

Unscrew the mounting screws (1) and remove the flashlight.

Attention! High-level brake light (P 21 W).

1. Press the pads on the left and right and remove the cover.



2. Turn the bulb holder with the incandescent bulb to the left and remove it. Press the bulb, turn it to the left and remove it.