In trying to replace the glass of the passenger side window, I was able to insert the new glass and fastened one bolt near the outer part of the door. I encountered a problem with the bolt for the inner part of the door, close to the car body; the bolt seems to be short. I discovered that a green piece seen in the photo is misaligned. It seems to be a stop piece. I searched the manual and there is no reference to it. Does anyone know the alignment of this green piece in regards to the glass clip and the door hardware? Is it goes upward or downward? Is the notch seen in the photo should face me downward or upward? Thank you.

 

I see this is an older post, but as I am finishing up a regulator replacement and ran into this green shim piece falling loose as I pulled the passenger window, I will make some notes.
As noted, the green shim goes on the forward part of the window, closer to the body. It sits behind the regulator tab, but in front of the rubber grip with the female threads that the bolt tightens down to hold the window.
This is when sitting inside the door, looking at the panel side.
The shim is angled, so shifting it up widens the gap, and pulling it down shrinks the gap. The outer grooves sit on the matching nubs on the back side of the regulator tab, then the rubber grip piece sits behind it.
lined up the shim so the bolt fits the slot on the green shim before tightening down on the rubber grip pieces female threads. Fairly certain the tab on the green shim should face towards the interior door panel side,
my pictures show it both ways as I was adjusting it to check. The images should help clarify any confusion with my previous statements.