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Old 02-21-2013, 07:26 PM
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Join Date: Sep 2012
Location: los angeles
Posts: 15
92 e400 head and tail lights not working

Ive been slowly putting this car back together after a front end collision. After a new harness , fuel pumps, rad and gas tank I'm readdy o tackle the lights.

The tails never worked but the left headlight did, the secondary lamp. No biggie, I got new bulbs and a new right headlight from yard. The new right headlight worked great but the left did not with the new bulb. I took a chance and spliced in a differrnt connector that plugs into the lightbulb on the left headlight and that did the trick but the bulb would light up very dim.

I plugged the right headlight onto the left headlight plug and it lit up dimly as well. I thought I was making progress here, but then something happened that the lights don't turn on at all now.

Also, the right headlight plug has four metal pieces on the female end and the left only three. Is this correct or did I rip out one of the pins when I unplugged the original headlight?

I got a new fuse for the headlights too. What do you guys think?

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Old 02-22-2013, 12:48 PM
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Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,421

My best guess:

* Lamp control relay MB# 1265420132 has failed.
* At least two grounds are broken or not connected.

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Old 02-23-2013, 04:34 PM
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Join Date: Sep 2012
Location: los angeles
Posts: 15
Is there a way I can test the relay to see if its broken?

Is the relay responsible for the tail lights not working?

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