Finally changed the non-original window motor in the driver's door by a regular one, and restore the original plug butchered to the motor. No more "beep beep" for the antitrap not set!! Great!
The job of replacing the window lift mechanism was made easy since someone had already replaced it by a non-original mechanism, thus drilling the rivets already.
Took the time also to add some vibrodamping and sound insulation to both front doors, I always like that ...
I need to remove the rear window mechanism in both rear doors ... left one is "stuck", pressing the switch there is a clicking and the motor "thunks" but no movement, so I need to take it apart to check what's wrong. There is power to the plug when the switch is pressed, so it is not a BeCM or switchboard issue (thanks Marty!).
Right one, I need to replace the entire door in preparation for the paint respray, at it was badly fixed in an earlier stage and "wobbly" and I will just used the donor's door.
To remove the window lift, the manual calls for removal of 4 bolts but I don't see them, see instead a bunch of rivets. I presume the process is like in the front? Drill drill drill?