Repair Trunk Wiring Loom
#11
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The entire wiring loom wires are wrapped in cloth tape. I had to remove some of it in order to get to the broken wires. I'll be black electrical taping them back.
#12
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Don't solder and heat shrink!!
The point where the solder wicks into the strands becomes a new point of failure. This is true of any wiring harness that is subject to flexing. Use a butt splice crimp (bare), and cover with adhesive lined heat shrink.
The point where the solder wicks into the strands becomes a new point of failure. This is true of any wiring harness that is subject to flexing. Use a butt splice crimp (bare), and cover with adhesive lined heat shrink.
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FormerE30Owner (07-08-2020)
#14
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donpb (07-08-2020)
#15
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#16
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I was planning on using wire tap connectors but now butt crimp seems to be a better option. I had pulled the entire hardness out of the tube and so no problem getting to the wires. I haven't fixed it yet because I've been under the weather for a few days and also this isn't urgent. From the photo, you can see that I have two broken wires and two exposed.
#17
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Join Date: Apr 2017
Location: pa
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My Ride: 528i
Model Year: 2010 528i e60
Engine: N52k
I see your thick brown wire is fully cut in half.
When my trunk stop opening and I unraveled the wire loom, my brown wire was also cut in half.
That told me the brown wire was hanging on by a strand for a while (and the trunk still opened).
When my trunk opened I was not observant enough to see the 2 interior trunk lights were out (because those wires were cut in half).
This would have told me to unravel the loom a lot sooner.
When my trunk stop opening and I unraveled the wire loom, my brown wire was also cut in half.
That told me the brown wire was hanging on by a strand for a while (and the trunk still opened).
When my trunk opened I was not observant enough to see the 2 interior trunk lights were out (because those wires were cut in half).
This would have told me to unravel the loom a lot sooner.
#18
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@scottalexander Yeah this all first started awhile back with the left license plate light notification. But since there are two plate lights, I didn't really care much to fix it in a hurry. What got me moving forward recently though is the trunk would not open. I plan to butt crimp them bad boys this weekend.
#19
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My Ride: 528i
Model Year: 2010 528i e60
Engine: N52k
The reason I added 5 inches of extra wire to the broken wires is because I refused to put back the black rubber grommet.
I wanted plenty of wire to move freely for flexibility around where the grommet used to fit.
I wanted plenty of wire to move freely for flexibility around where the grommet used to fit.
#20
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I saw what you posted previously about it being the cause. I agreed. I'm definitely not putting that grommet back in.