Race Build

4M · 03-22-2018, 07:26 AM

So, with my fire suit firmly in place, I have to confess to a major mistake and seek some help from the group.
In the process of gutting my E92 M3, I cut the power to the fuel pump. Long story/poor decision/need a fix. After substantial research and discussion with various parts suppliers and local parts guys I trust, I have ruled out the possibility of sourcing the 3 foot length of wiring (four braided wires, terminated on each end through a different type of plug) that I need. It has no BMW PN and is only available by purchasing an entirely new wiring harness for the vehicle, which I would then cannibalize for the piece I need. It may come to that (+ a painful wait/$450) but there are at least two other ways to go.
The two other options that I see are to either 1) repair the cut wires by splicing them back together or 2) finding a donor vehicle (part car/totaled/junk yard). Not being thrilled with the prospect of option 1, I'm looking for help from the group about possible sources for option 2 and/or ideas about other options I haven't considered. I do have a few salvage title candidates that are on the auction block now, but that feels a bit like a wild goose chase and would depend of the buyer being willing to render the car inoperable. I also know that this particular wiring is universal to at least all E92s, so I'm not limited to the M3 crowd, but I thought I'd start here given the greater likelihood of those who track their cars and may have parts sources.
Thanks!

doogee · 03-22-2018, 08:14 AM

I'll be honest I'm not sure if you're being serious.

Repair the wires.

Replacing an entire body harness because you cut a wire would be pretty hilarious.

BOOF-M3 · 03-22-2018, 08:30 AM

Quote:

Originally Posted by doogee

I'll be honest I'm not sure if you're being serious.

Repair the wires.

Replacing an entire body harness because you cut a wire would be pretty hilarious.

I agree, if you are not confident to do the splicing and keeping the wires from shorting out just go to a reputable stereo shop.

4M · 03-22-2018, 08:42 AM

Thanks for the input Gents. I agree that splicing is the easiest way to go - just looking for other ideas to make sure I'm not missing something and a little concerned with the integrity of even the best splice.

doogee · 03-22-2018, 08:49 AM

Quote:

Originally Posted by 4M

Thanks for the input Gents. I agree that splicing is the easiest way to go - just looking for other ideas to make sure I'm not missing something and a little concerned with the integrity of even the best splice.

Doesn't sound like something you should be doing yourself if you aren't confident.

deansbimmer · 03-22-2018, 09:43 PM

What wires were cut? The 14gauge yellow/red wire cluster?

4M · 03-23-2018, 10:10 PM

This Forum comes through again! I got a pm today from another member with a wire harness. He is sending me the bits I need to replace the sections I cut.
So grateful for the help. It will save me time and expense.

deansbimmer · 03-24-2018, 03:01 PM

Great to hear! That’s why I was asking, I too may have had what you needed.

03-22-2018, 07:26 AM	#1
4M Second Lieutenant 142 Rep 284 Posts Drives: '13 Melbourne Red E92 Join Date: Oct 2012 Location: Chicago iTrader: (1) Garage List 2013 BMW M3 Coupe [7.60]	Race Build - Wiring HELP Needed So, with my fire suit firmly in place, I have to confess to a major mistake and seek some help from the group. In the process of gutting my E92 M3, I cut the power to the fuel pump. Long story/poor decision/need a fix. After substantial research and discussion with various parts suppliers and local parts guys I trust, I have ruled out the possibility of sourcing the 3 foot length of wiring (four braided wires, terminated on each end through a different type of plug) that I need. It has no BMW PN and is only available by purchasing an entirely new wiring harness for the vehicle, which I would then cannibalize for the piece I need. It may come to that (+ a painful wait/$450) but there are at least two other ways to go. The two other options that I see are to either 1) repair the cut wires by splicing them back together or 2) finding a donor vehicle (part car/totaled/junk yard). Not being thrilled with the prospect of option 1, I'm looking for help from the group about possible sources for option 2 and/or ideas about other options I haven't considered. I do have a few salvage title candidates that are on the auction block now, but that feels a bit like a wild goose chase and would depend of the buyer being willing to render the car inoperable. I also know that this particular wiring is universal to at least all E92s, so I'm not limited to the M3 crowd, but I thought I'd start here given the greater likelihood of those who track their cars and may have parts sources. Thanks!
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03-22-2018, 08:14 AM	#2
doogee Major 748 Rep 1,256 Posts Drives: '08 M3, '09 328xi Sport Wagon Join Date: Oct 2008 Location: Ancaster, ON, Canada iTrader: (0)	I'll be honest I'm not sure if you're being serious. Repair the wires. Replacing an entire body harness because you cut a wire would be pretty hilarious. __________________
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03-22-2018, 08:42 AM	#4
4M Second Lieutenant 142 Rep 284 Posts Drives: '13 Melbourne Red E92 Join Date: Oct 2012 Location: Chicago iTrader: (1) Garage List 2013 BMW M3 Coupe [7.60]	Thanks for the input Gents. I agree that splicing is the easiest way to go - just looking for other ideas to make sure I'm not missing something and a little concerned with the integrity of even the best splice.
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03-22-2018, 09:43 PM	#6
deansbimmer BimmerPost Supporting Vendor 3749 Rep 2,907 Posts Drives: 2011 E93 M3 Join Date: Nov 2014 Location: DFW, Texas iTrader: (17) Garage List 1988 BMW M3 [0.00] 2013 BMW M3 [0.00] 2011 X5M [0.00] 2011 BMW M3 [0.00]	What wires were cut? The 14gauge yellow/red wire cluster?
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03-23-2018, 10:10 PM	#7
4M Second Lieutenant 142 Rep 284 Posts Drives: '13 Melbourne Red E92 Join Date: Oct 2012 Location: Chicago iTrader: (1) Garage List 2013 BMW M3 Coupe [7.60]	Faith Affirmed This Forum comes through again! I got a pm today from another member with a wire harness. He is sending me the bits I need to replace the sections I cut. So grateful for the help. It will save me time and expense.
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03-24-2018, 03:01 PM	#8
deansbimmer BimmerPost Supporting Vendor 3749 Rep 2,907 Posts Drives: 2011 E93 M3 Join Date: Nov 2014 Location: DFW, Texas iTrader: (17) Garage List 1988 BMW M3 [0.00] 2013 BMW M3 [0.00] 2011 X5M [0.00] 2011 BMW M3 [0.00]	Great to hear! That’s why I was asking, I too may have had what you needed.
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