Well I am assuming my dilemma is from car wash wax. My windshield has a white haze when it rains. Night time visibility is poor in the rain when the wipers are in motion.
Anyone have any tips. I have tried BonAmi glass cleaner, I was thinking maybe rubbing alcohol? I don't have any rain x or similar products on the windshield.
Go ahead and try the alcohol. I keep some in the garage for cleaning the wiper blades. Also I run my wipers in the car wash during the wax or sealer phases so as little as possible accumulates on the windshield. I do use rain-x, but not often. BTW I replace my blades usually 2X per year.
I would suggest:
New wipers (Bosch Icon I reccomend)
Alcohol base cleaner ( CLR might work too)
All else fails, clay bar will remove unwanted oily type residue
Do not use CLR anywhere on a car unless insanely necessary, even then it'd be a spot thing, not somewhere it'll get on paint or plastics. . It's acid and a heavy surfactant. If you like a safer and more commonly used product for windows is white vinegar, while vinegar is also an acid it is a much more dilute version and does not interact with nearly as many things as lactic acid, plus lactic acid attracts misquotes. It also won't destroy finishes or rubber. The next thing would be a small amount of bar keepers friend with a lot of water and a soft micro fiber and no pressure. Absolutely no scotch rite or other abrasive pads as you will scratch the windshield. Use water, lots of water All of these with serious rinsing and a follow up with simple window product like windex. RainX is user choice as some believe all glass should be sealed others think sealers are the reason windshields look bad and wipers go bad.
On the inside, a scrubber type sponge soaked in Windex can remove a goodly amount of the gunk that builds up, then scrub with decent paper towel. Before quitting, rub thoroughly with a good clean microfiber towel. Betwixt washes, just scrubbing with a good clean microfiber can help.
Clean windshield facing very bright sunlight if possible--it is almost impossible to see small streaks and film on it in a garage.
Stop by your local Mercedes dealer parts dept. get their wiper additive. It's called Summer Fit. Add one bottle with your regular blue stuff. I have been using this for the past 10 years.
I tend to see haze inside the window more when it rains and when the sun is low. The haze that I get is exhaust contaminants from sitting in traffic behind other cars. It builds up over time. Warm water and dish soap tends to do the job.
So, yes, replace the wipers, etc. But if you spend time in heavy traffic then also clean the inside of the windshield.
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