Thanks
LemansX5 
for providing me with the 411 on that Spot-X which, i would say took care of 90% of the problem with those stubborn water stains on my passenger side window. Maybe 2 more applications and and it would be as good as new.
X5Meister: you
can't use this on the tinted surface.
You guys can use this thread to thank anybody in here that helped you out on anything with your X