E34 540i Driver's Side Fog Light Cable - Bimmerfest - BMW Forums

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E34 (1989 - 1995)

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Old 05-17-2013, 07:15 PM
jdbertig jdbertig is offline
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Location: Dayton, Ohio
Join Date: May 2013
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Mein Auto: E34 540i
E34 540i Driver's Side Fog Light Cable

I bought my E34 540i two months ago and I have a bit of an issue with my driver's side fog light. When I bought the car the previous owner had trouble figuring out why that light wouldn't work. The fuses and bulb were fine. Being the junior aerospace engineering student and BMW fan I am, in the past two months I've been tinkering around with it knowing I'll eventually figure out what the problem is. Two weeks ago I used a little CLR to clean the contacts in the housing and the cable to the housing because they were caked with road grime. I got the light to work and found that there's a short in the cable so I duct taped it to the top of the brake scoop in a position that didn't let it short out and this worked fine until today's rain made it come off (I felt terrible putting black duct tape on a black BMW even when its inside the bumper haha). I'm thinking about pulling out the cable and replacing it since it looks like was spliced many times and is shorting out in a splice. Is this a hard Do-it-yourself job or will it be a simple disconnect and reconnect under the fuse box? My Bentley doesn't have anything on this that I can find.

Thanks for any help!
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Old 05-19-2013, 05:28 AM
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CarDriver CarDriver is offline
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Location: Saint Albans, New York
Join Date: Apr 2008
Posts: 2,421
Mein Auto: 1992 525it /2004 ML350
You seem on the right track. Level of difficulty depends on experiences. Just carefully trace out the wire and run the new one along side it and replace. You should do just fine. Be confident and be careful.
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