A rear window on an 95 S 420 was stuck in the down position. The switch moved the window unp and down a fourth inch.

I started to replace the regulator. I have removed the inner door cover; the speaker , the window motor, but now see the foam insulation. I have slit this cover in the middle to see the regulator, but don't know if this is how to procede.

How do I remove parts of this foam batting. It is held on with the most sticky take I have every dealt with.

Aslo instead of rivets can I use bolts and nuts to hold the regulator.

The All track data tell me to put the window in the arrested postion when I remove the regulator.

What does this mean.

Chuckg