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I went from standard semi electric non heated to fully electric heated with memory a month back.
If your original seats are heated then i will be an easier job, if they aren't you will need to run some wires from the gateway module by the front fuse box to the seats, then some coding will need to be done.
You will also need the main power plug for the seat module, then some wiring modifications to the original loom the comes under the seats
You only need to run 3 wires from the gateway module under the center console then split them off to each seat, would be quicker to make up a 3 wire loom and fit, than try and strip an OEM loom for the wires you need.
You will have modules fitted to the new seats, all you will need is a power connector(8pin) and to run 3 wires from the gateway module. then a bit of swapping wires around from the original car to seat loom
Dear
Im having e61 2009 with cloth half power seats.
Yesterday I bought memory comfort power leather seats from older model 2006 .
Bouth of them are heated.
The problem Im facing now there is big black/yelow plug in jack is the same , when I plug in nothing happens seats don't move. And there is a little plug in jack that dont look the same. Wire loom going to plug in jack is not the same. Can anyone help me how do I wire those seats .pictures shows old wiring that came with memory seats and my existing wiring loom.Last picture is the cable from memory seats first 2 pictures is my wiring plug in jack thanks in advance.
Last edited by Emir Kikanovic; 06-05-2019 at 04:11 AM.
Dear
Im having e61 2009 with cloth half power seats.
Yesterday I bought memory comfort power leather seats from older model 2006 .
Bouth of them are heated.
The problem Im facing now there is big black/yelow plug in jack is the same , when I plug in nothing happens seats don't move. And there is a little plug in jack that dont look the same. Wire loom going to plug in jack is not the same. Can anyone help me how do I wire those seats .pictures shows old wiring that came with memory seats and my existing wiring loom.Last picture is the cable from memory seats first 2 pictures is my wiring plug in jack thanks in advance.
HI
Its been a long time since i have done this retrofit.
The black plug in your last photo is the power plug for your new seats, the large brown and red/green wire coming out of the black plug need to be connected to the brown and brown/red wires from your original yellow block connector. This is + & -
Also the black power connector has 3 thinner wires connected to it, i cant remember which wire goes where but they are for the heated seats, power for seat switches and memory button illumination.
This forum thread helped me out quite a lot Seat Retrofit