Looking for some help with pre LCI trailer wiring

deyrag · 08-22-2023, 08:41 AM

Can someone that has the OEM wiring installed on their pre LCI vehicle please check and let me know the part number on the trailer control module? I have purchased what I believe is the correct wiring harness and module but would like to verify before I plug it in and things get all smoky

R BMW · 08-22-2023, 08:53 AM

I believe it is these:
-harness retrofit kit: 71-60-2-458-028

-trailer module:
63-11-6-894-066

63-11-5-A05-6D0

deyrag · 08-22-2023, 10:34 AM

Thanks, but I think those are for the later (post 2014) version

richardodn · 08-22-2023, 06:49 PM

Current PN for pre-LCI module is 71606856747. There's also a bunch of part numbers that this one supersedes.
Supersession table for above https://www.realoem.com/bmw/enUS/par...&q=71606856747

Pre-LCI kit is 82112287407 (supersedes 82712157704), install instructions are in EBA 2222180

deyrag · 08-23-2023, 10:47 AM

Thanks, exactly what i was looking for.
The module I have is 71606855562 which shows as a previous version of 71606856747 so i believe i am good.
The harness i have does not appear to have a part number anywhere but tracing out all the wires and connectors it matches with the diagram in the install instructions although some of the colors are different.
Feel confident enough to go connect it up and see if it works. Either way has to be better than the pos Tekonsha I have been trying to get working.

martinisounds · 09-26-2023, 04:23 PM

Hi all! sorry just thought I would add on to this. Is there a different PN for LCI (2015-2017) trailer modules and wiring? Seems like most topics are 2014 and earlier.

deyrag · 09-27-2023, 11:18 AM

Quote:

Originally Posted by martinisounds

Hi all! sorry just thought I would add on to this. Is there a different PN for LCI (2015-2017) trailer modules and wiring? Seems like most topics are 2014 and earlier.

Yes.
I believe the relevant p/n's for the post LCI retrofit are in post 2 but have not verified

to find accurate p/n's your best bet is to enter your VIN on https://www.realoem.com/bmw/enUS/sel...e=0&series=F25

08-22-2023, 08:41 AM	#1
deyrag Private 15 Rep 79 Posts Drives: x3 2.8i Join Date: Sep 2017 Location: ma iTrader: (0)	Looking for some help with pre LCI trailer wiring Can someone that has the OEM wiring installed on their pre LCI vehicle please check and let me know the part number on the trailer control module? I have purchased what I believe is the correct wiring harness and module but would like to verify before I plug it in and things get all smoky
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08-22-2023, 08:53 AM	#2
R BMW Second Lieutenant 948 Rep 279 Posts Drives: 2014 328Xi GT, 2020 X3 MC Join Date: Apr 2019 Location: Minnesota iTrader: (1) Garage List 2020 BMW X3 M Comp [0.00] 2014 328Xi GT [10.00]	I believe it is these: -harness retrofit kit: 71-60-2-458-028 -trailer module: 63-11-6-894-066 63-11-5-A05-6D0
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08-22-2023, 10:34 AM	#3
deyrag Private 15 Rep 79 Posts Drives: x3 2.8i Join Date: Sep 2017 Location: ma iTrader: (0)	Thanks, but I think those are for the later (post 2014) version
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08-22-2023, 06:49 PM	#4
richardodn First Lieutenant 160 Rep 349 Posts Drives: '12 X3 35iX/'20 440ix cabrio Join Date: Dec 2018 Location: Denver, CO iTrader: (0)	Current PN for pre-LCI module is 71606856747. There's also a bunch of part numbers that this one supersedes. Supersession table for above https://www.realoem.com/bmw/enUS/par...&q=71606856747 Pre-LCI kit is 82112287407 (supersedes 82712157704), install instructions are in EBA 2222180 __________________ 1986 Delphin 528e - Roof rack equipped lumber hauler. 2008 Platinum-Beige X3 3.0si - Current project 2012 Alpine White X3 xDrive35i - My new snowmobile. 2020 Estoril Blue 440i xDrive cabrio w/MPPSK - This car is a blast to drive.
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08-23-2023, 10:47 AM	#5
deyrag Private 15 Rep 79 Posts Drives: x3 2.8i Join Date: Sep 2017 Location: ma iTrader: (0)	Thanks, exactly what i was looking for. The module I have is 71606855562 which shows as a previous version of 71606856747 so i believe i am good. The harness i have does not appear to have a part number anywhere but tracing out all the wires and connectors it matches with the diagram in the install instructions although some of the colors are different. Feel confident enough to go connect it up and see if it works. Either way has to be better than the pos Tekonsha I have been trying to get working.
	Appreciate 0 Quote

09-26-2023, 04:23 PM	#6
martinisounds Enlisted Member 9 Rep 38 Posts Drives: 17 X3 M Sport Join Date: Apr 2021 Location: Canada iTrader: (0)	Hi all! sorry just thought I would add on to this. Is there a different PN for LCI (2015-2017) trailer modules and wiring? Seems like most topics are 2014 and earlier.
	Appreciate 0 Quote