Re: Electric window not working, drivers side
I had exactly the same symptoms with my window - clicking but no movement.
When the problem first started, I took off the door panel to have a look and discovered (by accident) a quick fix was to give the motor a gentle tap with a hammer. This produced a few months of service in fact, but then things got stuck again. A replacement mech is in order most likely.
If your window is currently aligned (there is no wind noises or loud road sounds when driving and the window doesn't catch anywhere), then you want to keep it that way! The main thing to do when fitting the mech is to not fiddle with any window alignment adjusters - just the anchor points of the motor mech. Its highly likely that when you fit the mech, your window wont be "right" but you should resist messing with anything other than the bolts that connect the mech to door and window.
I lost a fair few afternoons after thinking I could make things better by playing with the alignment stuff!
Aligning the window is very much trial and error IMO. The process described in the service manual requires special calibration type tools - but even if you could find some of these I'm sure they would only work when your rubber seals are brand new. Once the rubber has had years to "bed in" you just have to find that sweet spot for the window by eye and luck.