Mine just did the same thing... E53.
Driver's door
On my way home tonight, nice weather so I opened it all the way for the first time this year... when I got home, I was sad to find that I couldn't close my window.

I press UP, it clicks and moves up 1/4 inch. Then stops. Nothing. I press down and it goes down. I did it once more to see if it was maybe stuck or something. Same thing. So I stopped and came here to read up in case I burn the regulator or motor or something.

Worst part: my mechanic just went away for 2 weeks vacation... no one else has touched my baby, and it's always run perfectly... I'm nervous to go anywhere else.

Too many butchers in this world.

Any ideas? I have never taken the doors apart before, and have been searching on here for the past hour but can't seem to find anything specific on this topic, or results, or tips, etc.

I also am trying to see if I can find pictures on how to take the door apart without breaking any of the clips...

Can someone direct me?