Right Rear window rolls down randomly

[mart]

Hi,

So i've bought a vw polo 1.4 2002 which is doing just fine for me.
However since two days ago, the rear window rolls down randomly. The switches at the right rear side are not responding eather.
I can still control the rr window using the switch at the driver's seat.
When I lock the windows using the button at the driver's seat, it won't roll down anymore.

I already disconnected the switch once, this didn't seem to be the problem.
I checked the cables and they also seem to be fine and not the problem.

Is it the circuit board inside the motor or should I look somewhere else?

Part nr of the window motor: VW240RR

Thanks in advance!

[Adamsnake]

If you take the door pannel of there is a motor (either electric or manual)

something like this -

https://www.youtube.com/watch?time_cont ... e=emb_logo