355 Windows

Gents. As we know, our side windows do not retract fully into their doors. When fully down a thin arc of glass remains exposed. My windows seem to work fine but the left glass arc remains 3 cm exposed while the right remains 3.5 cm exposed. I've owned this car from new and never noticed this difference before. Now I can't take my eyes off it. So I gotta ask. Do your windows stick out the same? Is my right window not fully retracting? Many thanks.

 

I don't have ready access to my car, but I am pretty sure they retract down the same amount on each side.
I wonder if you gently push on the right side while you lower it... will it go down the remainder of the .5cm?