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      12-19-2008, 01:44 PM   #5
sageashton
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Drives: 2006 325i, Manual
Join Date: Jul 2007
Location: Santa Clarita, CA

Posts: 221
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Yes they both have memory and the memory works in the new seat. I almost 100% set that the red/white wire is for heat and that this new seat is not in fact heated. It looks like all three of the small gauge wires are constant on both harnesses. Here is what I think I am going to do:

Pull my wife's seat (heated, zsp) and plug it in my car. Does it have heat? If yes, than I know this is a non heated seat.

If no, then I know the wiring is off. So, I will pull out the multimeter and check which wire gives power when the heat button turns on. I will then try and find the corresponding wire on the seat. If no wire, then I assume no heat. I will then retrofit (or at least try very hard) my old elements into the new seat. If there is a corresponding wire then I will assume heat and then I will solder in the old harness.

At this point I am pretty sure this will be a retrofit job, though.

I will take pics for anyone else who wants to see how this goes...

Cheers and happy holidays!
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