On a 997.1s convertible, the passenger window seems to have gotten loose on the rear end. Let me explain:
. Lowering the window seems less smooth
. It doesn't lower all the way: 1/4" still visible after it hits bottom
. Moving with window using hand friction: seems the glass was disconnected from the rear, if you know what I mean

I read the chapters in the workshop manual. I have opened a door panel before (driver side), i feel comfortable doing it again. I also am comfortable with the mechanical part.

The question: has anyone repair something like that ? Do I need a PIWIS/durametrix to calibrate the window at the end of the repair?

Thanks all in advance!