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      05-27-2013, 02:52 PM   #1
thelord-akira
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retrofit electrical leather seats

Hi,
I am planing to retrofit electrical leather seats. Now I ve got sportseats with heating and sportadjustments. Can I retrofit full electrical leatherseats or must I change the wirings (I know I have to code memory)? Do s.o. have some informations for me?

Best regards
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      05-30-2013, 02:33 PM   #2
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Quote:
Originally Posted by thelord-akira View Post
Hi,
I am planing to retrofit electrical leather seats. Now I ve got sportseats with heating and sportadjustments. Can I retrofit full electrical leatherseats or must I change the wirings (I know I have to code memory)? Do s.o. have some informations for me?

Best regards
http://www.realoem.com/bmw/partgrp.d...11&hg=52&fg=10

i'm thinking about retrofitting my base seat to sport seat but i'm still doing my research. you can go to the site above and get the parts number you need. you can have your dealership or getbmwparts online order it for you. good luck
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      06-02-2013, 02:06 PM   #3
thelord-akira
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Hey,
now I ve got more infos. Changing to electrical seats (old ones may have heating) you have to change (make new) some wiring stuff...but I dont know what.

ebay has got some nice seats, but there are no informations about the wiring.

If you get more informations, please inform me.
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      06-03-2013, 02:16 PM   #4
antah
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Quote:
Originally Posted by thelord-akira View Post
Hey,
now I ve got more infos. Changing to electrical seats (old ones may have heating) you have to change (make new) some wiring stuff...but I dont know what.

ebay has got some nice seats, but there are no informations about the wiring.

If you get more informations, please inform me.
hi! what you have found on ebay? I leave near germany (in czech republic), but i don't speak german, so i can't search ebay properly...
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Honda Accord -> Subaru STi -> E93 -> F30 + F15 -> F30 -> F31 LCI -> G31
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      06-03-2013, 04:02 PM   #5
thelord-akira
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do you have any Infos about installing the wirings? if you help me, I will help you searching (dont want that you buy my seats ^^)
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      06-04-2013, 07:54 AM   #6
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Looking at the parts diagram, it appears that the cable bringing "juice" to the seat is part of the main wiring harness from the vehicle. Certainly to big of a job to change and also too expensive....

The seat module is powered by a 12V 30A circuit. For the backrest and lumbar, you have a 10A circuit to the seat. I am pretty sure that the 30A circuit is not part of your harness nor fuse box (at least, I did not have the 10A circuit to add my lumbar support).

Do you have the big yellow connector? (https://plus.google.com/photos/11743...38929768760203)

The two larger blades are for the seat module power (12V 30A) The two smaller pins are K-Can. The little pin alone is the lumbar/backrest power circuit. The bottom connector is the one from the vehicle harness (lumbar not present). If you could find the blade connector and the associated part from the vehicle haness connector, the job could be quite neat. If not, I would use a Molex connector to bring the current to the seat.

This said, I think it is doable, but you need to bring 12V from the battery or an accessory circuit. You may want to spend some time on BMWTIS.com to explore the electrical diagrams and figure out the best location to start that circuit.
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      06-04-2013, 10:21 AM   #7
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I forgot something that may be quite significant in my previous posting. The seat module interacts with the Central Gateway Module (in the FEM) and with the Integrated Heating and Air Conditionning System for mirror memory recall and seat heating.

Make sure you look at "Electric Seat Overview" in BMWTIS and at the wiring diagrams.

If K-Can integration with those module is important, then this thing may be much more complex than bringing 12V.

Also, the large yellow connector contains inserted connectors for the seat restraint system (airbag).
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      06-05-2013, 01:50 PM   #8
thelord-akira
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hey,

thx for your informations. This is my connector. I would by a 24h access to bmwtis.com, but I am not sure if I will find needed informations myself. Can you help me?

Best regards

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      06-05-2013, 09:53 PM   #9
mtherr
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I think the two red/green and brown may be the required power leads. For the TIS. Do not skim on that, you get good diagrams with connector PIN numbers. The descriptive documents are also good. When I purchased the access, I also downloaded other possibly useful procedures for future needs. I was able to print all I needed in PDF format for reviewing later.
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      06-05-2013, 09:55 PM   #10
mtherr
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one thing strange on your picture. I do not see the lumbar power lead in the same position as what I was expecting, not sure about k-can leads either.
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      06-06-2013, 06:06 AM   #11
thelord-akira
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Quote:
Originally Posted by mtherr View Post
one thing strange on your picture. I do not see the lumbar power lead in the same position as what I was expecting, not sure about k-can leads either.
hmm I dont know. I do def. have seatheating (bus connection must exists), electrical lumbar and side bolster. I think I will start checking the diagramms next week.
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      06-17-2013, 09:39 PM   #12
mtherr
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Any news on your project?
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      06-19-2013, 05:59 AM   #13
thelord-akira
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hey,
no. had less time to start with
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      06-21-2014, 06:42 AM   #14
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Hello thelord-akira

any news?

Last edited by maax227; 06-23-2014 at 01:29 PM..
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      11-18-2020, 12:29 AM   #15
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Quote:
Originally Posted by mtherr View Post
Looking at the parts diagram, it appears that the cable bringing "juice" to the seat is part of the main wiring harness from the vehicle. Certainly to big of a job to change and also too expensive....

The seat module is powered by a 12V 30A circuit. For the backrest and lumbar, you have a 10A circuit to the seat. I am pretty sure that the 30A circuit is not part of your harness nor fuse box (at least, I did not have the 10A circuit to add my lumbar support).

Do you have the big yellow connector? (https://plus.google.com/photos/11743...38929768760203)

The two larger blades are for the seat module power (12V 30A) The two smaller pins are K-Can. The little pin alone is the lumbar/backrest power circuit. The bottom connector is the one from the vehicle harness (lumbar not present). If you could find the blade connector and the associated part from the vehicle haness connector, the job could be quite neat. If not, I would use a Molex connector to bring the current to the seat.

This said, I think it is doable, but you need to bring 12V from the battery or an accessory circuit. You may want to spend some time on BMWTIS.com to explore the electrical diagrams and figure out the best location to start that circuit.
Starting from scratch here... I am looking to wire up some f30 non heated m spot seats up in a non bmw. I know it has been done. Can anyone help with the set up? Thanks!!!
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      11-18-2020, 12:31 AM   #16
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I also have two of these pigtails off of the donor car.
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