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#11
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#12
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Mine would be a 2002 3.0d European version.
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#13
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I don't know if I've ever seen anyone take apart the seatbacks to get the leather off for back heating elements, but it'll be an interesting project. Nigwhyrito, are you going to clip off the OEM connectors and solder in new multipin connectors?
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2000 Z3 2.3 Steel Gray 2004 X5 4.4i Jet Black |
#14
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Answer to helmuth.
I have an 06 3.0i USA. my plugs were under the seat.. which made me want to start the project since it was already wired. Answer to nra0707 - yes im going to pull the hog rings off. add some aftermarket elements then put the leather back on and put some more hog rings.. or zipties depending how I feel back on. I am going to be soldering to the bmws wire harness just tapping into the wries that way if ever in future i find a rear heated seat or i sell my x.. I will still have the factory connector in good shape. Im just getting upset though because i think the bmw uses a dual stage heat elements for the rear seats. the one i have is a single stage elements from my kia sorento before i crashed it. Im may have to get a new temp sensor from digikey to make it work.. but there about $8 bucks so no worries there. if i cant make them work then i have to purchase the dual stage elements $160 buck ones off the internet.
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E53 06 3.0i wishlist Comfort Seats speckdock 2.5 Mods Air suspension - wip skid plate replica - in box OEM sunroof deflector OEM bluetooth streaming navi,dsp,tv retrofit - wip Low prof roof racks 2 directtv satelite tuners Grom audio usb2 quarter and back window sunshades 2 10"subs- boxes opposite sides/Alp MRP-M850 rear heated seats retrofit rear footwell lights retrofit remote window roll up |
#15
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Sorry everyone got side tracked.. things that through me off 1.. bmw schematic is actually backwards.. the one you pointed to helmuth is actually backward on wds bmw reversed the wire code up on that page. you have to look up this schematic x337 that actually is the rigth schematic for the wiring. 2. monday driving home caught a flat tire. had to put everything back together so bmw would replace it under warranty. 3 my seat heat elements are 2 wires they are wired in series where as bmw uses there in parrallel and use 3 wire. Still trying to source the thermistor on digikey and mouser website so I can add it to the circuit. My elements do have temp switch tested it out today with a heat gun and it went from 2.3 ohms to 0/infininty.
4. its freaking cold..lol. in my searching I found some good info. seat heat temperatures NTC thermistors 3 stage switch for front seats but im doing the rear and they are set by bmw for 2 stage switch. stage 1 high = 44ºc stage 2 med = 39ºc stage 3 low = 35ºc input = 120w 95ºc turns off so this is what i think i need from mouser or digikey 2 NTC thermistors 1 for each side. I guess at 10kΩ and operating temp of 40º C and 120w with 10 amp current not sure if they will work any electronics engineers? Im working the circuit over with my dad in his spare time.. I do not feel like buying new aftermarket elements. also found some good info here about range rovers which were i think made by bmw. Heated Seat Temperature Upgrade on Range Rover 4.0/4.6 i did finish the retrofit of the rear footwell lights that was done in under 30 mins.
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E53 06 3.0i wishlist Comfort Seats speckdock 2.5 Mods Air suspension - wip skid plate replica - in box OEM sunroof deflector OEM bluetooth streaming navi,dsp,tv retrofit - wip Low prof roof racks 2 directtv satelite tuners Grom audio usb2 quarter and back window sunshades 2 10"subs- boxes opposite sides/Alp MRP-M850 rear heated seats retrofit rear footwell lights retrofit remote window roll up Last edited by nigwhyrito; 03-25-2011 at 11:22 PM. |
#16
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Great, just did mine yesterday
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#17
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NIK wheres the pics?
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E53 06 3.0i wishlist Comfort Seats speckdock 2.5 Mods Air suspension - wip skid plate replica - in box OEM sunroof deflector OEM bluetooth streaming navi,dsp,tv retrofit - wip Low prof roof racks 2 directtv satelite tuners Grom audio usb2 quarter and back window sunshades 2 10"subs- boxes opposite sides/Alp MRP-M850 rear heated seats retrofit rear footwell lights retrofit remote window roll up |
#18
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Problem statement: I have the original heatet rear seat and the original switches but my cable to the seat is missing so it seams I am somehow lost. Was always hoping that all cabling would be there in a 2002 3.0d.
I believe the + cable should come from the relay in the trunk - this might not be a problem but how do I connect the switches and the temerature measurement sensor? Has anybody solved that in the past? |
#19
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Are the rear footwell light lenses the same as the front footwell light lenses? I can't find a part number on RealOEM. I would assume it's part 9?
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#20
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mm, I did take one or two pics, I will post if you guys want it. I baseicly Removed Center console, Drivers side seat and pulled the carpet. there are two plugs that I took and put heated seat switches on. then Replaced the backseat.
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