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BMW 3-Series (E90 E92) Forum
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Heated Seat Retrofit
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11-27-2009, 02:44 AM | #23 |
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In doing a little more research (on the leather-sport seats), I was able to find that the sport seat heated elements are not available for US cars, but for European cars, you can get all three elements separately from the seat cushion:
Heating element, sports seat leather - 64116973943 $107.88 Heating element, sports backrest - 64117140539 $83.47 Heater element, thigh support - 64117138803 $20.88 Obviously, I would need two of each part and those are list prices, so the parts should be able to be had for less.... I'm thinking that the modules could be salvage yard items, as they are quite expensive. More R&D to come... |
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11-27-2009, 11:03 PM | #25 |
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11-29-2009, 05:26 PM | #27 | |
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So Booster, are the part # for the leather seat skins with the heating elements sew into the seat skin? I wouldnt mind upgrading my sport seat vinyl to leather if all I needed to buy were the skins. |
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11-30-2009, 02:09 AM | #28 | |
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I really wanted to go with the OEM grids, due to the sensitivity to the airbag (weight) sensors in the seat, as well as some concerns I had regarding the placement and the leather. I also wanted to utilize the factory switches and diagnostics should something break. I put aftermarket seat heaters in my wife's Acura, but wasn't as concerned with its leather - and it doesn't have the sensors or whatever on the seats that affect the way the airbags deploy like the E90. (As a side note, I did notice that Dodge actually makes a seat heater retrofit kit for the newer Ram pickups.) The part numbers I found are just for the heating grids sold on a European 335d with sport seats - they are not sewn into the leather like some makes. In fact, the OEM ones sold in the U.S. are a part of the seat foam-cushion, and the leather portions go over it. I thinking the best bet is to order the new grids, and get the seat modules and switches from a salvage yard. I'm thinking this could be a $600 retrofit, assuming I do the recoding. |
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02-14-2010, 01:23 AM | #29 |
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Love following this post - looking forward to doing this on my own 335i once I feel I have all the right pieces together. I found a OEM switch panel on ebay - Check, now just need the grids and the seat module(s?). I plan to put the modules in and somehow get the car recoded and test the elements BEFORE putting them into the seat baffles to make sure everything checks out before yanking the upholstery apart.
Regarding the recode - how do you go about recoding yourself? I've recoded an audi & VW before but I can't find much online about how to do it. |
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02-15-2010, 11:08 PM | #30 |
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call me a noob, but wouldn't it be easier to either go to a junk yard and find a bmw with heated seats, or order them from some place like tischer, order the panel, order the modules, and just hook everything up?
I'm also interested in doing this, and would ideally either order COMPLETE seats (with memory) and install them in plug-n-play fashion....
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02-15-2010, 11:59 PM | #31 | |
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Maybe you can price out the seats for us and let us know, but I'm sure you'll be shocked... |
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02-16-2010, 01:38 AM | #32 | |
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This would negate the issue with having to cut the seats open to insert heating elements, no?
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02-23-2010, 09:48 AM | #34 |
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Maybe... but not too many totalled cars wherre the airbags don't blow, and besides, as he has already said, yards KNOW what seats cost.
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02-23-2010, 09:49 AM | #35 |
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03-09-2010, 12:22 PM | #37 | |
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Last edited by acerboo; 03-09-2010 at 12:32 PM.. |
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03-09-2010, 10:18 PM | #38 |
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fudge... I would really like to add STOCK heated seats to my car, but if it requires programming and changing my VO, this sounds like a complicated thing....only reason I wouldn't go aftermarket heaters, is due to the fact that the seats would be OEM, and not aftermarket heated modified ones.
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'07 SGM + DG 335i sedan|Navi|ZPP|Rear PDC|Euphoria 6k LED interior|Matte Black Grills|OEM Blacklines|MTEC A.E's|CF Roundels|Alufelgen 19" CS7 with 15/12mm spacers
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03-09-2010, 10:21 PM | #39 |
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We are looking at the recoding with Autologic right now for audio reasons... wonder if they offer it for this, since the EU has the upgrade package... I'd like heated seats, too...
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03-10-2010, 01:29 AM | #40 | |
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So far, I have installed the switches (kinda got them as part of a deal) and they light up and all, but are inoperative. I plan to get some seat modules (used) - they are very expensive new and I haven't found correct salvage ones yet. I will change the VO when I get the modules and some grids to test it out (before ripping the seats out & apart...) |
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03-10-2010, 01:57 AM | #41 |
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I can help you with this as I did this retrofit to my E46 M3 in January. The cars aren't wired, and the seats do not have the elements in them. BMW aren't silly they won't waste money by putting in wiring for an option not selected as it costs them money.
Here is the DIY post for the E46http://www.m3torque.co.uk/showthread.php?t=1111 I am thinking seriously about doing this to my mother's E90 320i and got the EBA guide this morning. It looks straight forward. |
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03-10-2010, 02:10 AM | #42 | |
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I do believe that the wiring (up to the seats) is already setup on the E90 - at least up to the point of the seat module. Check out these "retrofit" kit instructions (non-sport seats only) available in Europe. I think I can adapt this kit and make it work for my sport seats (by either buying the heating grids that apply to my seats OR by purchasing my own correct OEM seat modules and wiring it up myself.) Either way, I think its completely possible.. |
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03-10-2010, 03:09 AM | #43 | |
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Easiest way to tell is look at the pin outs on plugs X279 and X275 under yor seat. |
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03-11-2010, 11:33 AM | #44 |
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im picking the seats up tomorrow, these are already heated and will have the modules needed, im just hoping the socket is in the back of the ac unit to plug the switches into, does anyone know how to remove the switches and ac panel? just need to get the switches - very expensive
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