[fozzydj]

Hi all,

Ive had a niggling problem with my 2007 335i SE (n54) for quite sometime now.

Its never bothered me enough to take it into a garage but now Im interested in having ago at sorting it myself.

Its related to my front passenger seat. Whenever an adult is sat in it I get a seatbelt disconnected warning light and also the airbag red warning light appears (at the sametime). Ive had a child in it and it didnt appear so Im assuming its some sort of pressure sensor?

I have the cloth electric/mem seats, not heated.

Can anyone point me in the right direction of the faulty part so I can look to replace it?

Thanks in advance

Regards,

Fozz

[Bmw4lifejoc]

[fozzydj]

Hi,

Turned out to be faulty occupancy matt in front passenger side. Bought a little bypass box and plugged this in. Drivers seat just gone also :-( Same fix I think

[rasa bmw]

Originally Posted by fozzydj

Hi,

Turned out to be faulty occupancy matt in front passenger side. Bought a little bypass box and plugged this in. Drivers seat just gone also :-( Same fix I think

will that box turn airbag off?what if you have an accident?interested to know

[fozzydj]

No, it bypasses the occupancy matt so the car assumes someone is occupying the seat. When I dont have a passenger in I have to put a little clip in the seatbelt so the car thinks its on, other than that all fine. Airbag lights gone (so one would assume they are working)

[fozzydj]

They are about £25 on Ebay, easy plug and play behind underside of seat. Ive heard replacing the matts is an expensive job

[bfleming]

Originally Posted by fozzydj

Drivers seat just gone also :-( Same fix I think

There isn't an occupancy mat in the drivers side, the logic being that if the car is in an accident, the drivers side will have someone sat in the seat.

[fozzydj]

Ahh, that makes sense. Hmm, my lights are back on then, I just assumed it was same fault, drivers side. Wonder if my box has failed? Its worked fine for a number of months.

[Rudders82]

hi i am having issues with the lights on the dash relating to seat occupancy mat and noticed there is a connector at the back of the seat as attached picture which doesn't go to anything i can see any wires for it at all . the previous owner changed the seats and never fixed the airbag light which i thought could be a simply bypass jobby but now i am not so sure can anyone help

[rasa bmw]

Originally Posted by fozzydj

No, it bypasses the occupancy matt so the car assumes someone is occupying the seat. When I dont have a passenger in I have to put a little clip in the seatbelt so the car thinks its on, other than that all fine. Airbag lights gone (so one would assume they are working)

are ok thats champion.

[fozzydj]

Hi Rudders, buy a box that we are talking about and plug it into the plug in your picture

Regards,

Neal