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      09-18-2020, 09:37 AM   #1
JOHNBMWM5
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Cracked screen

Anyone had the windscreen just Crack?, mine was in the Garage and it just Cracked a foot long from the top???.
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      09-18-2020, 08:09 PM   #2
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Quote:
Originally Posted by JOHNBMWM5 View Post
Anyone had the windscreen just Crack?, mine was in the Garage and it just Cracked a foot long from the top???.
Must of had a chip that you didn't notice. Is it hot where you are? Heated garage?
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      09-19-2020, 04:00 AM   #3
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Originally Posted by Maverik259 View Post
Must of had a chip that you didn't notice. Is it hot where you are? Heated garage?
No heated Garage and it was fine when I put it in 4 days ago.
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      09-19-2020, 05:05 AM   #4
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It just happens. car glass is so prone to chips and cracks, unfortunately. Here in the south the hot sun will cause a small chip to turn into a crack from expanding and contracting with temps.
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      09-19-2020, 08:21 AM   #5
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Had it happen twice for no reason.

535d many years ago. Driving down the road and the rear screen let go. Wow that made me jump.

my Camper van, a few months ago sitting round the back of my house. One day fine next day 14" crack.
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      09-19-2020, 01:47 PM   #6
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Quote:
Originally Posted by JOHNBMWM5 View Post
Anyone had the windscreen just Crack?, mine was in the Garage and it just Cracked a foot long from the top???.
Just replaced my windshield- did get hit by road debris and in the 3 days I waited for the replacement to come in, the crack tripled in size.
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      09-21-2020, 09:51 PM   #7
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Quote:
Originally Posted by JOHNBMWM5 View Post
Anyone had the windscreen just Crack?, mine was in the Garage and it just Cracked a foot long from the top???.
Yes happened twice already from the top as well. Once, dead center, going down doing an inverted Y outside of each camera.
The second time, top right, then slowly going left towards about ¾ of the windscreen...

Maybe it has to do with different materials expanding/retracting at different rates (Carbon fibre roof, vs A-pillars + bottom support)
Or different rigidity of different materials. Carbon roof probably not much prone to flexing and sends this extra energy to the glass.
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