E46 M3 Heated / Electric Seats

[davros]

Yeah I left it, I tried to swap the sensor over but the blue plug on it is different on both?! The one on the M3 was also plugged into a blank did you have this?

Hi mate, there should be 2 cables going into the sensor. 1 wire from the sensor mat coming from the rear of the seat and the other cable going into the main yellow connector plug.
You will need to remove the M3 sensor AND the cable & connector going into the main yellow power plug beneath the seat and replace them with the Z4 one. To remove this cable you will need to slide back the black part of the main yellow plug and the occupancy sensor connector should then slide out. The z4 one should then slide in. (The occupancy sensor connector which fits inside the big yellow plug should be the same shape for the M3 & Z4).
You will then need to unplug the occupancy mat wire coming from the rear of the seat from the sensor and plug in the Z4 one.
To remove the actual sensor, you will need to twist it 1/4 or 1/2 turn and then pull it from the seat base.
I hope this makes sense. It’s quite difficult to explain.
(I’ve attached a picture of the yellow plug with the black top slid open, ready for the connectors to be pulled out)

Thanks so much for that - made perfect sence and got it all swapped around now!

That’s great news Kyle. Glad you got it all sorted. Enjoy your new seats

 

[davros]

Hi Lee,
it was nice meeting you today.
Good luck fitting the seats. Hope the rain holds off for you.
Cheers
Dave

 

[G600]

Thanks Dave, you too, I'm really impressed with the condition of the seats
I got the driver's side fitted in-between the rain and I wish I'd bought at set of these as soon as I got the car, far more supportive than the standard seats!

 

[davros]

That’s great news Lee, I’m glad your pleased with them
Hopefully the rain will hold off a bit tomorrow for you to fit the passenger one too. They certainly are a massive step up from the standard SE seats imo