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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > UK Technical Forum > Electric swivel tow bar wiring help needed



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      07-06-2021, 03:29 PM   #1
Bean801
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Electric swivel tow bar wiring help needed

Hello all, I apologise in advance for the long thread.
Iím hoping someone here might be able to help me.

My car is a 2008 E91 320d Msport, pre LCI

I have brought a second hand OEM folding tow bar with modules & loom from a breaker. The loom I have has been cut out of the donor car. The breaker promised to take photos of the loom in place before removing but sadly ďforgotĒ.
I have now installed the bar and brought the loom into the car but donít know where all the wires need to go.

I have looked at the retro fit guide but I just canít get my head around it. Probably not helped by the cut loom I have received.

I have taken some pictures but I donít know how to upload them

So Iíll begin

The first branch of wires come out just after the grommet that goes through into the boot. There are 5 wires in this branch that are just cut
Blue with brown trace
Thick brown
Grey with blue trace
Yellow with purple trace
Black with blue trace
These do match with the plug on the rear of the driver side light apart from the yellow with purple trace

The second set of cut wires come out of the main loom after the first branch of 5 wires. Here there are 9 cut wires
4 x Brown (2 x thick & 2 x medium thickness)
Red with blue trace (thick)
Yellow with purple trace
Grey with blue trace
Blue with brown trace
Black with blue trace

Next set come from the AHM module that has a black plug
Here I have 7 cut wires
Red with purple trace (thick)
Red with yellow trace (thick)
Brown
Blue with brown trace
Black with yellow trace
Green and orange with green trace twisted together

Next set come from the AHV module that had a white plug
Here I have 8 cut wires
Red with black trace (thick ish wire)
Brown
Green with black trace
White with brown trace
Blue with brown trace
Blue with white trace
Blue with green trace
Blue with black trace

Iím also assuming that the brown wires should all be earthed?

Itís just the rest that Iím not sure of.
Any help would be greatly appreciated
Or even better if there is anyone local to redditch that can do the wiring? Or recommend anywhere that can do the wiring for me.

Thanks in advance
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      07-07-2021, 03:50 PM   #2
Bean801
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https://share.icloud.com/photos/0NgW...MI_bZpNXQ#Home

Photos in the link above.
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      07-11-2021, 01:31 PM   #3
Bean801
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Does anyone have one currently fitted that could take some pictures of the wiring in their boot for me?
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