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Originally Posted by X5 in AK
Rock chips and pitting are usually two different issues. If a rock hits the windshield with enough force, it will chip (star, crack, whatever you want to call it) regardless of how 'hard' the glass is.
Pitting, or your windshield looking like it was sandblasted, probably is a function of glass quality. The windshield on my '85 728i was terribly pitted when I bought it as a 12 year old car, so bad that I couldn't see out it when the sun hit it just right. No rock chips, though. I had a new PPG windshield installed, no problems after 6 years. Still looks new.
So if you have a sandblasted looking windshield, I would vote for poor glass quality. A rock chipped windshield, that's just bad luck.  |
I have a sandblasted-looking windshield and you guys are going to think I'm crazy as to what I'm about to suggest. I hate seeing my X5 dirty during the winter months up here in the Northeast (where they heavily sand & salt the roads during snowstorms), so I frequent a new super high-pressure, touchless car wash after each and every snow storm. When they first installed this new car wash during the summer, I was especially impressed on how clean the X was after a 4 minute high-pressure wash. Now it's winter, and every carwash in our area is required to recycle water (as per law). Well, I wonder how much filtering is going on with this dirty; sand & salt infested water during the wash cycle. After a wash last month, as I pulled out into the street to drive away, I noticed a "starfield" of small pitts on my windshield that would rival some planetariums. Boy was I PO'd. A few days later, I noticed small pits & tiny dents on the hood surface and rear hatch - like I was doing 70 mph in reverse and hit a stone??? It's got to be this car wash. When I attempted to contact the owner of the car wash/gas station, his response was "the sign says enter at your own risk". Nice. Anyway, I'm curious, anyone else out there with a pitted windshield frequent a high-pressure car wash, or am I and my theory just plain crazy? 
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2022 X6///M - Toronto Red, Silverstone Full Merino Leather, Executive Package w/Remote Engine Start, Soft-close doors, Heated & Cooled Cupholders, Front Ventilated Seats, Front & Rear Heated Seats, Front Massaging Seats, Carbon Fiber Trim.
2002 X5 3.0i, Sport Premium, Titanium Silver, Grey Dakota, Cold Weather Pkg, Xenons, DICE, LED Tails, just a winter vehicle...
2007 550i, Sport Premium, Silver Grey Metallic, Grey Dakota, Nav, Cold Weather Pkg, Comfort Access, HD Radio, Xenons.
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