My 2020 Audi S5 has an issue with the interior windshield fogging up. I can use the windshield blower to clear it, but the fog returns pretty quickly. I’ve adjusted interior temp. No real help. I’ve cleaned the windshield interior. Better for a drive or two but the fog/haze/film returns. Is…

Do you run the climate control all the time? If not, it might just be that general humidity is fogging the windows. If you do run the climate control frequently, you should take it to a dealer if you haven’t already. I doubt that you exceeded the mileage part of your warranty, and certainly are cov…

The best glass cleaner that I have used is Hope’s Perfect Glass, which can be found at Lowe’s, Home Depot, and some supermarkets. If that doesn’t work, then you might try using rubbing alcohol, but you need to be careful that you don’t get any alcohol on the dashboard’s vinyl cover. If none of t…

[image] VDCdriver: you need to be careful that you don’t get any alcohol on the dashboard’s vinyl cover. IPA won’t damage the dashboard if it’s cleaned off immediately. Still,I’d spray it on the wiper outside the car and then wipe the windows. BTW, IPA doesn’t work well on the window deposits…

I have no ideas about how to clean the windshield but if this been happening since the car was new I would say the fogging is being caused by off gassing from the plastics and other materials the interior is made from.

The fogging you are describing is a combination of humidity and outgassing from interior materials. You can just run your defroster all the time, that will keep the humidity low enough to keep water vapor from condensing on your windshield. Cleaning the windshield will do the most good, but those …

Ammonia based cleaners work well. The spray foam types not so good. White vinegar and isopropel alcohol in distilled water works. Scouring powder…non scratching types… on the tougher films. Rain X No Fog on the inside helps keep the window from fogging up.

When was window glass invented? 1600’s? You’d think by 2021 the tech wizards would have figured out how to prevent it from fogging up. But apparently not … lol … Good ideas above, esp about using the AC to dry-out the passenger compartment air.

I had one car that would do that, for whatever reason ac blowing through the vents by the windshield would cause fogging. I think changing the airflow to feet solved it, but but not sure, so long ago.

I think this is just Outgassing from dash and other parts. Some vehicles have it more than others and it will stop . It could be weeks or months . Speaking for my self I am not taking Steel Wool to a new car windsheild not matter how fine it is.

Cleaning Windshield

General Discussion

Beancounter September 19, 2021, 12:15am 13

Make a DIY cleaner

Mix a bowl of warm water with a teaspoon of dishwashing liquid and add in just a few drops of vinegar (whatever you have in the kitchen should do the trick).
Have two microfiber towels ready to go. …
Twist the excess water out of the soaked microfiber cloth and wipe the interior of the car windshield.

I add a splash of ammonia instead of vinegrar and alcohol to just to get it to dry faster. .

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Cleaning Windshield

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