how can I clean water stain on car window?

[wonchoi88]

i recently bought a 92 300E from friend of mine.. car is awsome and even look stunning after a complete detail but theUgly water stain on winshield doesnt want to come off... any advice?

[jtwh20]

you could try 000 steel wool - just go lightly, and slowly

[AYLBENZ]

Try mixing some vinegar and salt and rub this mixture on the stain.

[94Wagenmeister]

Use "Barkeeper's Friend". It's great. Feels powdery but has enough grit to clean crap off widows. I first used it on my glass shower doors, and use it about once a year on my cars (right before reapplying RainX)