941549 Eliminating Symptoms on Body Exterior - Reworking Headlights (Dust/Condensation In Main Headlight)
WM 941549 Eliminating symptoms on body exterior - Reworking headlights (dust/condensation in main headlight)
General information
Symptom
Dust in main headlight and/or main headlight misted up due to condensation.
Cause
- Filter element for headlight ventilation system is not flat/centred or fully sealed in the filter element housing.
- Filter element for headlight ventilation system is very dirty.
- Seal for cover of dipped beam/auxiliary main beam headlight is not centred or fully sealed in the cover.
Remedial action
In the event of a complaint, check the filter element and covers and replace them if necessary.
Tools and materials
955.631.254.00 => Filter element
955.631.237.00 => Cover, left
955.631.238.00 => Cover, right
955.631.241.00 => Cover, left for auxiliary , main headlight
955.631.242.00 => Cover, right for auxiliary , main headlight
Reworking headlights
NOTICE
Voltage peaks
- Risk of damage to load or to the control unit
-> Remove the ignition key and switch off load before disconnecting or removing load.
Remove main headlight.
1. Open front lid.
2. Press cover -1- in engine compartment down in -direction of arrow- and remove it.
Removing cover
3. Slide a socket wrench -5- onto the release for the main headlight -3- and release it in direction of arrow -arrow A- or -arrow B-.
Releasing main headlight
4. Pull the main headlight -1- forward until the connector -2- is accessible.
Removing main headlight
5. Release the connector -2- ( -arrow A- ) and pull it off the main headlight -arrow B-.
6. Remove main headlight -1- from the wing by pulling it forward -arrow C-.
Information
The filter element for the headlight ventilation system is located on the bottom of the main headlight.
Check filter element for headlight ventilation system.
Filter element for headlight ventilation
1. Pull upper part of filter element -1- out of the lower part of the filter element -3- ( -arrow- ).
Leave lower part of filter element -3- on the main headlight.
Removing filter element
2. Examine filter element -2- for soiling and leaks and check that it is seated correctly. Replace it if necessary.
3. Check upper part of filter element -1- and lower part of filter element -3- for damage and replace them if necessary.
Information
Make sure that the filter element is centred in the lower part of the filter element -3-. The filter element must not be kinked.
4. Insert a new filter element -2- ( -arrow- ).
Installing filter element
5. Fit upper part of filter element -1- on the lower part of the filter element -3- and press it in securely -arrow-.
Installing filter element
6. Check that the upper part of the filter element -1- is seated securely.
Remove cover on dipped beam/auxiliary main beam headlight.
7. Release cover on dipped beam headlight -1- at the two clips -arrows A-.
Removing cover on dipped beam headlight
8. Swivel the cover on the dipped beam headlight -1- out of the guides on the main headlight and remove it -arrows B-.
9. Release cover on auxiliary main beam headlight -1- at the two clips -arrows A-.
Removing cover on auxiliary main beam headlight
10. Swivel the cover on the auxiliary main beam headlight -1- out of the guides on the main headlight and remove it -arrows B-.
Check cover on dipped beam/auxiliary main beam headlight.
11. Check the seal -1- on the cover -2- to ensure that it is seated fully all the way around.
If the seal is pinched or damaged -arrows- , replace the cover.
Checking cover and seal
Install cover on dipped beam/auxiliary main beam headlight.
12. Fit cover for dipped beam headlight -1- down into the guides on the main headlight and swivel it up -arrows A-.
Installing cover for dipped beam headlight
13. Press cover for dipped beam headlight -1- onto the main headlight until the two clips engage securely -arrow B-.
14. Fit cover for auxiliary main beam headlight -1- down into the guides on the main headlight and swivel it up -arrows A-.
Installing cover for auxiliary main beam headlight
15. Press cover for auxiliary main beam headlight -1- onto the main headlight until the two clips engage securely -arrows B-.
Install main headlight.
1. Insert main headlight -1- into the guide rails and push into the wing -arrow A- until the connector -2- can be plugged in -arrow B-.
Installing main headlight
17. Push main headlight -1- all the way back into the wing -arrow A-.
18. Press the main headlight to the rear and, at the same time, turn the socket wrench -5- in direction of arrow -arrow A- or -arrow B-. In the process, the headlight lock -3- must engage with an audible and perceptible click.
Locking the main headlight
19. Check that the main headlight is seated securely.
20. Insert cover -1- and fold it over -arrow-.
Installing cover
Working time
94154901: Reworking headlights; Labor time 50 TU