Nissan Primera Door Panel

There is a problem on my Dads 2006 Nissan Primera 1. 8 S, the front electric window judders at the top, sometimes it fails to close especially in the cold weather as there is a safety mechanism that prevents trapped hands so it goes back down. I took the door card off to look at the mechanism but all was ok, it turned out to be the run channel thats at fault the previous owner had wind deflectors on the car which have buckled the run channel. Anyhow this video shows how to take off the door card, and remove