new bmw seats now what to do with all these wires?

[dozerking]

it so happens that i just installed the same seats but with out the heaters. i plan on redoing the upholstery and installing after market heaters,i might even consider using the bmw heater n heater switch,if i can find the factory wiring diagram,still searching. you will have to somehow trace the heater wires and wire in the switch n fuse.

its not that easy... i have the factory wiring diagram that i got from a elec. specialist here in town! from what i get from it any switch would work the trick is sending the right amount of power to the heaters and then being able to have a thermo switch that turns the power off and on when the heat gets to hot so your seats dont melt down!!

 

[alpinemechanic]

As I said before you'll probably need all the components in the diagram to get it working

 

[Stoshu]

I know this is a long shot and this thread is over 2 years old, but did anyone ever figure out the seat heating element wiring set up?

I just picked up a set of 323 power heated seats for my 60 and would love for me to be able to get the heaters to work!

Thanks guys!

 

[TLC Norway]

I'm also reviving this, as i have E49 seats with the big yellow connector on the seat.
There's a lot of info in the bimmer forums, but very little info about hooking up the seats heaters to another rig.
I think the one way for me is to find the BMW dash switches, as they produce a pwm signal to heat up the wires.
Hopefully i can just power up that bad-boy, wire it to the seats and skip the whole k-bus system.

From what i've read, theese heat pads are pretty hot, so i'd like to control them like factory, at the three stages.

 

[red66toy]

Also interested in this! Looking forward to any ideas on how to hook up the heaters in a clean way.

 

[Mica Peak]

I know this is an old thread, but I was able to figure out the green wire with yellow stripe is to the heating elements in the seats I have. My seats are from an 05 325xi. I bought the amazon two setting, round heat switches. The switches come with a ground wire attached, wired power to the center, the heat element to the two connectors on the left and right of the center connection. I wired the power from the passenger seat heater connection. I got some advice from Nick and Adam at Torfab before I started. I had a tough time figuring out the heater lead and though I'd share. On my seats, the heater wire was a larger gauge, 12?, that may help if the colors are different.

 

[SteveH]

I'm also reviving this, as i have E49 seats with the big yellow connector on the seat.

Bright yellow wiring can be for side-airbags, if your seat is so equipped, so be VERY careful what you apply 12+ to!