well my solenoid kit and filter arrived (those things are hard to find nearby so i had to order them from usa) and im taking the car to a shop soon.. will write here when i see if that solves the problem..

the filter was never changed and the car has like 65k km so I guess it might have something to do with it..

what happens if i put like some no name brand fluid in the trans ? it seems oem and big brands are hard to find where i live