Well I have to disagree Jon, as I have taken out many mechanisms when they wouldn't move. Also, whilst your measurements may be fine for a window fully up, what about when it is stuck part way? You could end up with long slot holes to cater for any position! :-)
Excellent point Roy, but I didn't intend my post to be an instruction for removal in all situations. Hopefully, if your power window fails, it fails in the fully closed position, otherwise you could have a pretty drafty ride.
I did remove the inside window seal, but not the outside one. With the window closed the outside seal would probably be destroyed if you try to remove it, because it is made of hard plastic and clipped on in a manner that requires lateral movement for removal. a movement that will be difficult with the window in the way.
If you are unfortunate enough that your window is stuck partially open, you can measure from inside the window grove to the top of the window and add that measurement to the 9 cm from the top ledge. That should put you on top of the bolts, except for the lateral movement torward the front of the door, due to the slant of the slide. I would first figure out that angle and draw a line accordingly from the center, where the holes in the fully closed position should be cut.
Once cut, the holes are easily covered with, for example, duct tape, and then you have easy access to remove the window, if you ever have to remove the mechanism again for lubriction or replacement.
Do
not drill out the bracket on top of the slide (pop rivet shown in photo) It is not necessary to remove the bracket to take out the slide. Just unscrew the two bolts visible under the holes in the photo and the one at the bottom of the door. The bracket will guide you to positioning the slide correctly when reinstalling.
Getting to the window bolts for removal
is possible without the holes, but just try to reinstall them without the holes and you will probably curse yourself for not cutting them
How you managed is beyond me, I do not have that kind of patience or dexterity.