E-Class (W124) 1984-1995: E 260, E 300, E 320, E 420, E 500 (Includes CE, T, TD models)

Electrical problem with window switches and dash lights.

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Old Jul 26, 2017 | 01:25 PM
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1990 300e
Electrical problem with window switches and dash lights.

Ok for the last year. I have been trying to figure out this problem I am having. The lights will randomly come on whenever they want and the only way to get them off is to turn the headlight switch on and off 1 or many times it depends on how it feels. I replaced the headlight switch to see if that was it but no dice. Right now I have my cluster out and I saw this relay, that square plug will turn the lights off if I unplug it, is it possible that that would need replacing. It looks kinda hard to remove it. Attached some pics of the relay and the lights that I am talking about.




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Old Jul 26, 2017 | 05:04 PM
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hanly2's Avatar
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1990 300e
Thank you so much. I was looking at the diagrams in the haynes manual but I have no clue what Im doing.
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