SOS: Airbag // Seatbelt light on

[nikica]

So yesterday I took out my passenger seat because it had a tear in the stitching and dropped it off to be repaired. Put it back in my car and plugged everything up only to realize my instrument cluster looks like a Christmas tree lol.

I just read somewhere it could be because I had it unplugged and was driving around with the seat out.

What do I do?? Any help is really appreciated! :]

Niko
818.645.2400

[2Veloce]

I have the same problem because I replaced the front seats from 135i to 128i, my car is the 128i, the airbag and seatbelt lights are on

[nikica]

Does anyone know how to fix this issue?

[135iblk2009]

For taking the seat in and out, just clear the codes with INPA software.

For the seat change there should be two connectors under the seat, a larger rectangular yellow one and a small round white one. Take a look where the white one leads to, the headrest or seat rail. Use whatever your car had originally. Clear codes.

[nikica]

I have the Schwaben scan tool & I tried clearing the codes multiple times and it wouldn't clear the issue =[

[2Veloce]

Originally Posted by 135iblk2009

For taking the seat in and out, just clear the codes with INPA software.

For the seat change there should be two connectors under the seat, a larger rectangular yellow one and a small round white one. Take a look where the white one leads to, the headrest or seat rail. Use whatever your car had originally. Clear codes.

I had 2 issues , first the airbag and seatbelt lights on, second, The Backrest width adjustment was not working, second point was fixed, I can't see the small round white connector, I will check and try to clear the codes, I appreciate your help.

[nikica]

Does anyone know what I can do to fix my problem??

[128ibro]

I mounted a phone mount under one of the bolts for the passenger seat. I didn't like it and took it off and now I have the same problem sometimes it goes off by itself, but when someone sits on the passenger seat and move it comes back on.

Help!

[nikica]

I took it to my mechanic & he said I need the new sensor..... It's $830 =[

Anyway to code this out with INPA??

[2Veloce]

Originally Posted by nikica

I took it to my mechanic & he said I need the new sensor..... It's $830 =[

Anyway to code this out with INPA??

Which sensor he told you?

[nikica]

The sensor stating if someone is sitting in the seat or not..

Even if someone is sitting in the seat with their seatbelt on I still get this light on the dash...

[Raz108]

Originally Posted by nikica

The sensor stating if someone is sitting in the seat or not..

Even if someone is sitting in the seat with their seatbelt on I still get this light on the dash...

Attachment 1898908

I have the same light. It's the occupancy seat MAT sensor. It's a sensor which lies on the bottom of the seat cushion. Upholstery work is involved when replacing the sensor. There are aftermarket bypass systems but that seems a little too risky, in my opinion. The sensor does work intermittently if the passengers weighs a certain weight and sits at the right spot on the cushion. lol

BMW has done several recalls for this specific sensor but non of the recalls apply to the 1 series. I think it's total BS. The dealer quoted $1300 for the replacement.

I am curious as to whether a strongly worded complaint to BMW citing safety reasons and previous recalls for the same part will do any good.

Let me know if you find another fix.

[nikica]

Ive been told you can code it out using INPA! Im going to go that route to be honest... Im not trying to spend $800 + on a sensor for a damn seat. Bummer part is that it only went off when I took my seat out last weekend to fix some of the stitching on my seat.

Or you can find a used seat in good condition and just swap the whole thing

[2Veloce]

I found the issue, the sport seat do not have the occupancy sensor, maybe I can use a bypass or try to transplant the sensor from my old seat (is a headache)

[2Veloce]

I solved the issue, I bought the occupancy simulator and the light was deleted

[2Veloce]

Some pics