Are these hard water spots or windshield defects

[Joe F]

Just got my 2018 MX and I have the same thing. Severely effects visibility in rain and dark. Anyone have an answer as to what it actually is and what fix is available?

So you didn't read the thread?

 

[Muzzman1]

Distilled Vinegar will easily remove water spots with no hard to car surfaces. Put it in a spray bottle and get a microfiber cloth and go to town.
Once you're done wash the car with your preferred method.

Easy Peasy.

 

[cucubits]

2 month old car. Never driven in rain at night until few days ago. Noticed these spots after wipers go over the windshield. Makes driving really hard at night in rain. Notice that there are other spots and horizontal and vertical lines as well. I’ve tried invisible glass product and that didn’t help. Any tips on how to remove them if these aren’t defects in the windshield.

I noticed this exact same spotting on my pre-owned S which I just bought from Tesla. I think they're from some previous treatment, chemical, water etching or just from having the car out in the sun for long long time...

Very strange, when dry, the glass seems perfectly clean, but when it rains or it gets wet, it's very obvious. It's like tiny tiny water droplets bead in those spots.

In any case, I've been reading around, tried random cleaners, claying, all with zero impact. What did it for me what a couple light passes with a slow speed random orbital polisher, with a soft foam pad and a bit of regular Meguiars 210 (I know, intended for paint, but it's very light, doesn't cut much). Really all it took was about two low pressure passes and the windshield is spotless. All that's left is to decide which sealant to get for it.

 

[Mnm4242]

Did you ever get this resolved? I have the same thing on my new model y. Came that way from factory.

 

[ishareit]

Did you ever get this resolved? I have the same thing on my new model y. Came that way from factory.

I had to get the windshield replaced on my S in 2018. 4 years later, my new Y delivered in March 2022 has the same issue.