BMW E36 Electric Windows acting strange?

[bene211]

Hi all,

I've come to this forum as I believe the advice im looking for is much more specific and after posting on all the E36 forums its clear that this is an unheard of problem which seems to be happening to me.

My car is a 1996 BMW 3 Series (Also known as an E36)

My main problem with the window are 2 bizzare things are happening

1) Whenever the key is turned over in the ignition, the windows automatically wind down... the buttons are not being pressed down etc it just automatically starts going down

2) When the windows do go down, they all go down at the exact same time - and in the past when i managed to get the windows slightly/almost working briefly by trying loads of different methods they were still all working together almost in union.

The convertible models has a one touch button i believe which allowed the windows to all work together however mine is a Saloon so it definitely shouldnt be happening.


All motors and regulators have been either replaced or are already tested and working fine (and the GM4 module which controls the windows has been replaced and tested as working).

If there is any more information that could be helpful please let me know - Im also very happy to supply requested photos as all the door cards are off at the moment.

Thanks all for any help!
Ben

 

[plugsandsparks]

From memory, BMWs i have had including the one i drive now has a function where if you press and hold the unlock button on key fob, all windows will go down together, equally if you press and hold the lock button, they will all go up together. It may be your key is faulty.

 

[bene211]

From memory, BMWs i have had including the one i drive now has a function where if you press and hold the unlock button on key fob, all windows will go down together, equally if you press and hold the lock button, they will all go up together. It may be your key is faulty.

Thanks for the reply - This is something which someone else has also mentioned to me which may be worth looking into - However my key fob was broken so I use the manual key entry, so I dont think my FOB could be the cause of it in this scenario but thanks for the suggestion