I picked up my 2011 ES 350 a little over a month ago. The previous owner didn't take very good car of the car's exterior. Evidence points to a car that sat outside all of the time. The windshield has more pitting than I would like, but that isn't what is troubling me.
On the right third/ passenger side, down where the wiper rests in the black tinted area, there is something on the glass and I can't get it off. It is only visible from certain angles, but you can feel with with your fingers. It's almost like sticker residue or some kind of sap residue, but not sticky/tacky.
I also noticed 6 or 7 water (?) spots higher up in the glass in that same 1/3 area, but those feel like they are below the level of the glass. It's weird. I can scratch at them with my fingernail but it does't do anything. Again, they aren't noticeable except from certain angles with the light just right. I wondered if maybe it's a defective glazing or water repellant? I don't know what's on the windshield from the factory.
My concern is that it may interfere with the wiper in some manner- contamination, premature wear.
I saw mention of 3M glass polish elsewhere, but I don't know if that would be too aggressive? I know of Bon Ami - the plain old Original 1886 formula feldspar and Tallow soap, but don't know if it would be bad with any coating on the windshield.
Stoners glass cleaner and rubbing alcohol don't do anything.
Hopefully you can make out what I'm talking about in the pictures.
Any suggestions would be appreciated! Thanks!