Hello, together, I’ve been having a little problem for a year. The windshield is very thickly smeared. Tagsueber it is little problematic. One sees light lubrication on the windshield, as if the windshield wipers would lubricate a little oil on the windshield. At night is another story. Especially in the city with lots of traffic, luminous traffic lights, cars with brake lights, turn signals etc. It looks like Starship Interprise. With Lenseflares all around. I already have all e gaengige means from crystal clear to sodium (as with grandmother), except Sonax disc cleaning polish, tried. Nothing helps. It’s so bad that I really have to think about when I have to drive at night. Does someone know each other with such a problem? For a tip, solution, a warm word I would be very grateful! cheers, ar43r