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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Heated Seat Retrofit



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      04-19-2012, 04:43 PM   #177
E90inSC
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This is list on Ebay. Search for e90 heated seats.
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      04-27-2012, 12:09 PM   #178
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Quote:
Originally Posted by Booster4075 View Post
Anyone who is interested, I am selling the retrofit kit I bought at:

http://www.ebay.com/itm/130671949405...#ht_843wt_1413
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Originally Posted by E90inSC View Post
Like Booster, I bought the parts and did not get them installed before my car was in an accident. Car is gone, but I have the kit for retrofitting the heated seats in an E-90 including the switches, cover plate, heating elements, etc.

If anyone is interested, I would like to sell the kit. I have about $600 invested in everything. Any reasonable offer would be accepted. All OEM parts.
GLWS of your kits!

I finally have all my parts but haven't had time yet as I was rebuilding the calipers on my other car. We also had 80 degree weather last weekend
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      04-30-2012, 05:41 AM   #179
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Did anybody have any luck?
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      06-12-2012, 10:53 AM   #180
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Quote:
Originally Posted by smallseafishie View Post
Let us know how it goes!
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Originally Posted by Mallard View Post
yeps sorry , i am having the leather with heating elements fitted as we speak
Then i just need to put the wiring together , and it hopefully will be done
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Originally Posted by JimVR4 View Post
Great to hear! My parts on on order and due by about 4/15. I plan to do the leather myself too
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Originally Posted by Relentless335i View Post
Did anybody have any luck?
OK, a long overdue update on my progress. First of all I managed to obtain a DVD of BMW TIS from 12/2007 from an Ebay seller. Installation of the SW was a little tricky on my Windows 7 64-bit machine as TIS has to run under a virtual windows XP. I was able to obtain all of the service procedures for seat removal and disassembly. However there were a few discrepancies that probably relate to the age of my TIS version. To my knowledge a newer version is not available outside of the BMW dealer.

I completed the driver seat upgrade over the weekend. Too many steps to list and it's basically covered in TIS but there were a few extra things. I needed to adjust the seatback from fully flat (needed for removal / installation of the seat bottom cushion) to full upright (needed to remove seat back panel). The side airbag had to be removed (two 10mm nuts inside the seat and I left the electrical dangling). I removed the seat bottom cushion completely but did not (could not) remove the headrest so I just pulled the seatback cushion inside out to work on it. The thigh support cushion was removed but the leather remains attached at the end away from the seat edge.

The thigh support was first. The heating element is adhered to the cushion and the wire harness snaps into a slot in the frame.

The seat bottom cushion had 12 visible hog rings to cut. After doing that there are several hog rings that have to be accessed by folding back the leather and reaching down into the channels in the cushion. The sides have to be done first, then the retaining wires are pulled from their sleeves and then the leather can be folded in the other direction to access the hog rings in the horizontal channels. After releasing all the hog rings and pulling out the remnants, the heating element can be adhered to the seat cushion. The leather is reattached as a reversal of the former steps. The vertical channels are done after re-inserting the retaining wires. Lastly the leather is pulled around the edges and the 12 rings are installed on the bottom. There is a hole in the foam to accomodate the wire harness.

The seatback is done similarly however all the hog rings are hidden in channels. First the verticals, then pulling the retaining wires, then the horizontal ones. The heating element is adhered as before and the leather is re-attached with new hog rings. I had to take care to position the foam after having turned the leather inside out to access the last hog rings.

After completing the seat assembly I installed the seat back in the car and made the mistake of turning on the car without all electrical re-connected which set off an error in the seatbelt / airbag system. I was able to clear the error using my OBDII cable and INPA.

Seat heating on the driver side is now fully functional
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Last edited by JimVR4; 07-10-2012 at 03:23 PM.
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      06-12-2012, 06:19 PM   #181
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You can use the TIS on win7...I do.
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      06-13-2012, 12:25 AM   #182
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Quote:
Originally Posted by woodpecka
You can use the TIS on win7...I do.
I don't think TIS can run under 64 bit Win 7 though.
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      08-24-2012, 01:36 PM   #183
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My passenger seat has been done for some time and I intend to update this thread with a complete description of the wiring and seat upgrades.
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      01-31-2013, 03:51 AM   #184
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heated seat looms E90

hi all, the listing referred to is gone, someone in Czech repunlic is selling them for 61 euros, anyone know a reasonable UK seller..?! cheers!
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      07-30-2013, 03:48 PM   #185
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OK so I finally did the retrofit after all this time.

For the e92, both the driver side and passenger side seats have the big seat module where the heated seats are controlled via canbus (on sedans, it's on the driver side seat). This means that there is no coding required if you replace for the e92's. It's just plug and play.

Hardest part of it all is installing the heating elements. It's a major royal pain in the a$$. To whoever that is thinking about doing it, it's very very time consuming. I seriously want to stress that it's very time & labor intensive!

After the elements are installed, it's just a matter of swapping out the seat module. No new harness are required or wiring. For the e92, it's just install elements and upgrade the seat module to ones that are meant for heated. Plug in the new switch panel and you're done.

If you get stuck on seat dis-assembly, PM me and I can give you some pointers.
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      08-09-2013, 07:48 PM   #186
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smallseafishie, thanks for the update on the E92 retrofit.

I've got a 2011 M3 with sport seats and memory that I want to retrofit with heated seats.

Can you tell me the part number of the module? Is it 61356926433 ?
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      05-26-2014, 09:09 AM   #187
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Hi guys a just retrofitted some e92 m3 seats into my e92 and the m3 seats have heating however my car standard didn't have heating, what will i need to retrofit?
My standard PDC and heated seat panel only had PDC, however i do have a PDC + Heated seat panel at home.
What is involved for my self for the fit?
Cheers,
Tom
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