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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > DIY Powered seat retrofit (WIP)



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      02-05-2021, 07:03 AM   #419
Juniorakos
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nevermind i connect pin5 to ignition plus 5A on fuse box , still i have issue after coding..when i press button light up and then lights off , sometimes it lights for 15-20 seconds and then off again , but i dont feel any heating coming , maybe there is issue with pin1 wire ? how can i check it ? with multimeter i dont get any volt on pin1 wire..should i get some volt ?
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      02-15-2021, 12:40 AM   #420
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Quote:
Originally Posted by Yotaismygame View Post
I did end up installing the seat position sensors. I'll get pics another time. It was difficult to find where they attached on the seat and the internet has almost no pics of said sensors. After clearing the codes the air bag light went off. The sensor is two pieces and the bottom sensor needs a hole drilled for it to mount. All is good with these seats now except for the heat not working.
where did you get the seat position sensor from?
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      02-15-2021, 10:06 AM   #421
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Quote:
Originally Posted by Socket View Post
where did you get the seat position sensor from?
ECS or FCP can't remember. Maybe both have it.
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      02-15-2021, 04:17 PM   #422
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Originally Posted by Yotaismygame View Post
ECS or FCP can't remember. Maybe both have it.
Thanks so much. Btw does leaving the seat position sensor unplugged cause an airbag/seatbelt error? or is it ok to just leave it disconnected?
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      02-18-2021, 01:30 PM   #423
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It does cause an airbag light. When I hooked up my scanner it specifically said seat position sensor for both sides.
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      03-01-2021, 06:33 AM   #424
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Hello,

I found a E92 coral red interior sports seat set for a very good price, however it is for a RHD car. This thread is very usefull and found others which did the same. On page 16 someone said that only a LHD control panel should be sourced and the wire harness be swapped over.

The current passanger seat (which will be the driver seat) has a cable which I think is the ocupation sensor, does anyone have pictures where this sensor leads. Do I need to remove the whole seat cover for example.

The set was advertised as Electric with memory but without heating, if the above needs to be done then maybe I will also retrofit heating at the same time.
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      03-04-2021, 08:32 PM   #425
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Any help appreicated:
https://www.e90post.com/forums/showthread.php?t=1804849

LCI non-sport seats to 2007 sports seats.
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      03-06-2021, 09:01 AM   #426
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Thanks for this, just what I needed!
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      04-13-2021, 11:19 PM   #427
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Quote:
Originally Posted by Juniorakos View Post
nevermind i connect pin5 to ignition plus 5A on fuse box , still i have issue after coding..when i press button light up and then lights off , sometimes it lights for 15-20 seconds and then off again , but i dont feel any heating coming , maybe there is issue with pin1 wire ? how can i check it ? with multimeter i dont get any volt on pin1 wire..should i get some volt ?
Did you ever figure out what pin 1 was for?
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      04-14-2021, 02:45 PM   #428
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Hello guys. Can you help me? I have a E90 2005 and I found some E92 Electric seats with heating and memory. Does it works on mine?

Thank you.
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      04-15-2021, 12:47 PM   #429
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Hello guys. I am negotiating these seats Can you tell if they have heat system? If someone can help me also with the part of the wiring by I would appreciate it.


Thank You.
Attached Images
  
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      05-01-2021, 12:47 PM   #430
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VW BUS

Has anyone attempted installing E90 seats in a VW bus?
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      05-09-2021, 07:48 AM   #431
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Fantastic thread - gratitude to all who've built it up.

I'm putting heated powered sport seats into a 2006 325i that came originally with manual heated seats.

2 questions:

1) I need to run KCAN to my driver's seat; are the KCAN wires green and green/orange everywhere? (I need to go hunting for the closet place to tap - no idrive wondering if KCAN may be in wires near my subwoofer... or I may try footwell module.)

2) for passenger side, I tapped into my one existing power and ground wire pair in the seat harness, effectively powering both heat module and bolsters from one source. I know this was discussed early in the thread, but can't quite discern the answer... is this arrangement safe / legit, or am I courting disaster relying on one power/ground for the entire seat?
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      06-11-2021, 09:29 AM   #432
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hello, tried everything with retrofitting from non heated seats (08/2007 e90) to 2006 heated sport seats, plugged in positive wires from x11006 pin 1 and 2, to pin 4, pin 34-38 to pwm pin 1, x11001 pin together to pin 5, and pin 8 grounding to front - under the hood, option added to FA $494 and FA_write to jbbl cappl and ihka, green led stays on but none of seats is actually heating... what can be the problem... thanks for any reply in advance, this toppic helped me a lot. i will answer and post pictures to any question
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      06-18-2021, 09:42 AM   #433
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Retrofitting E90 Seats into a Hot Rod or other car without a computer (KCAN).

Just wanted to add to this great discussion. I have been reading this for over a year while I build a 1968 Mustang Fastback. I have a set of 2008 M3 seats in dark red that matches the cars Shelby strips.

Obviously, the car does not have a KCAN signal or feed to keep the Driver's seat activated. I have been searching for a solution for quite a while and I think I found one...

I started with a 5v source @ 1-2 amps to trigger the KCAN feeds into the seat.

1st test included simply touching the wire to the feeds in the seat...result: seat worked for about 30secs to 1 min. By disconnecting and reconnecting, I was able to get another 30secs to 1 min.

2nd test, I found a common LED power source for retrofit automotive tail lights. It dropped the 12v feed to 5v - LEDs dont need full power. So by using an early mustang retrofit module where the LEDs sequenced to turn on each individual light bulb as the turn signal is activated, (the new mustangs, this feature is built in) I created a pulsing 5v signal. Low and behold, I found / created a signal that the seat saw as a KCAN Signal.

Result... the seat worked continuously while the ignition was active. All the other functions work when wired as others here have described.

For the Heated Seat function, I found a 10min timed relay. When a 12v signal was applied (via momentary switch), it would trigger the relay sending power to the heating element for 10mins then disconnect. If you wanted more time, hit the momentary trigger switch and the cycle started again. FYI... these relays come in many different times, 1 min, 2mins, 5mins... etc.

Just wanted to share my 2 solutions...
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