I would think it has a crush washer for a reason. Go to local dealer and get one, if there not too much get more for future oil changes. If price is high add some if you had to order parts. I think your talking about the "window regulator" check out these links. Hope this helps and get you going down the right path.
https://www.youtube.com/watch?v=swh72qx4-sg
https://www.youtube.com/watch?v=2VbJoSuWncQ
Porsche Boxster Window Regulator Replacement / Window Switch Replacement / Window Motor Replacement - 986 / 987 (1997-08) - Pelican Parts Technical Article