Wire in door seal

[slawless]

I replaced the door seals in my E46 M3 (2003) today. There is a wire from the door seal that connects in the A-pillar. Does anyone know what it does?

[bigjae46]

Pinch sensor for the windows. When you close the door the windows roll all the way up.


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[BMWE46M3]

It connects to the air bags in the A-pillar. So be sure to connect it up.

[K-Dawg]

It connects to the air bags in the A-pillar. So be sure to connect it up.

??

[slawless]

thanks, makes sense. I couldn't figure out why a door seal would need a connection. and for K-dawg. the connector is in back of the A-pillar air bag. not the air bag itself.

[Feakara]

It’s the pinch protection sensor. Your window will not roll up automatically with out it.

[I M Legend]

so is this for the airbag or pinch sensor or both? sometimes the internet is full of mis or incomplete information. can someone that knows please confirm.

[bigjae46]

Pinch sensor


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[coolchill]

Thanks for the info & explanations all, I was about to install it in my car and was wondering the same thing if I needed to disconnect the battery. if it may be an airbag related sensor, but now know it is that pinch sensor.

[heinzboehmer]

I would still disconnect the battery if you're gonna be messing around with things that are anywhere near an airbag.

[coolchill]

I would still disconnect the battery if you're gonna be messing around with things that are anywhere near an airbag.

True, good point, thanks for the advice & insight