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Old 10-29-2018, 10:54 PM
Join Date: Oct 2018
Location: New York
Posts: 4
JohnOfTheJungle is on a distinguished road
Installing X5 seats into non-BMW. Power is not working.

Hi - Iím in the process of installing heated + memory power X5 seats from a 2007-2010 into a non-BMW.

So far Iíve been working on and testing only the passenger seat by running power & ground directly to the corresponding wires on the seat (red/green for power, Brown for ground). The seat is giving me no response whatsoever.

Iíve also tested each of the motors separately by hooking them up to power and they all work. Iíve done quite a bit of reading on the topic, but canít seem to find many resources on someone putting X5 seats in a different vehicle. I also can not find a wiring diagram for this model with heated + memory seats.

Iíve read that in some cases K-Can might be needed (which I donít have). Iím also considering the possibility that the ECU under the seat or the switches themselves could be dead. The person I bought the seats from insists they worked fine when he pulled them.

Can anyone shed some light on whether there is anything else I can try here to get the seat to respond? Any advice is appreciated!

Here are a few pics of the wiring

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Old 11-02-2018, 08:55 AM
Qsilver7's Avatar
Join Date: Oct 2012
Location: Indiana, USA
Posts: 3,282
Qsilver7 is on a distinguished road
Can't help with the issues you've raised...but can give you a link to BMW wiring schematics. Go the link below and select the correct model generation (if you don't have the VIN then select one of the "e70 X5" that is pre-facelift)...once you have a specific model, there's also a search box that you can use to type in key words or phrases that may help find what you're looking for: https://www.newtis.info/tisv2/a/en/

For a specific example...I selected for an e70 X5 4.8is...then typed "seat module" into the search box and got the results you can see if you click this link: https://www.newtis.info/tisv2/a/en/e...?q=seat+module

TIP: if you open one of the wiring diagrams...take note that there are "clickable" links within the wiring schematic that will open up more details and information about the module, fuse, wiring connector, etc that is represented in the schematic.
{BMW CCA Member #191509 - (for more info see: www.bmwcca.org)}
  • 2013 f06 650ix GC (1/13 build date) Black Sapphire exterior/Schwarz (black) Nappa Leather interior
  • 2006 e53 X5 4.4i (12/05 build date) Sterling Gray exterior/Schwarz (black) Dakota Leather interior
  • 1997 e38 740iL (sold) Arctic Silver
  • 1999 e39 540iT (sold) Orient Blue
  • 1995 e34 525iT (sold) Alpine White
  • 1991 e32 735iL (sold) Schwarz (black)
  • 1985 e30 325e (sold) Bronzit

Last edited by Qsilver7; 11-02-2018 at 09:03 AM.
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Old 11-07-2018, 12:39 PM
Join Date: Oct 2018
Location: New York
Posts: 4
JohnOfTheJungle is on a distinguished road
Thanks a lot for the links, I'll dig in and check it all out, will update if I'm able to get it to work.
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Old 11-14-2018, 11:52 PM
BigBody's Avatar
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Location: nyc
Posts: 201
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Out of pure curiosity... where are those seats going
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Old 11-15-2018, 01:46 PM
Join Date: Oct 2018
Location: New York
Posts: 4
JohnOfTheJungle is on a distinguished road
Trying to put them into a 3rd gen 4runner, since I can't get them to move though it's not working out too well!
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Old 04-18-2019, 02:51 PM
Join Date: Aug 2008
Location: EU - NL - Nijmegen
Posts: 31
BMTouring is on a distinguished road
afaik the seats do not need any bus connection unless you want to use the memory function.
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Old 04-18-2019, 03:24 PM
Join Date: Oct 2018
Location: New York
Posts: 4
JohnOfTheJungle is on a distinguished road
Grrr...maybe I got ripped off and sold dud seats.

They've been sitting on my floor for a few months now. I can revisit them and see if maybe some internal circuit protection mechanism got tripped and has reset with time. Far fetched, but who knows.
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