the car im referring to is an 07 328xi coupe
the initial time i noticed the problem was while opening the passenger side door, the window automatically opened completely. When i tried to close it, the window struggled to go up (it was pulsing, would go up about 3cm everytime i lifted the button).
The pulsing of the window is now persistant, either going up or down. as far as opening the door, it sometimes triggers the window to go down and sometimes it doesnt.
i cant seem to find much information about this online or asking around so any help would be appreciated, thanks.