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G Class (W460, W461, W463) Produced 1980-2018: 290 GD, 290 GDT, 300 GD, 350 GD, 500 GE, G250, G300, G300 DT, G320, G500, G550, G55 AMG, G63 AMG
View Poll Results: Has your 2019 g-wagon suffered a cracked windshield?
No. I feel lucky!
15
34.88%
Yes, under 5000 miles :-(
13
30.23%
Yes, over 5000 miles :-(
8
18.60%
Yes, more than once! :-( :-( :-(
3
6.98%
Yes, but it was my fault, not the factory glass - hit a bird!
0
0%
No, I used a product to protect my windshield like Exoshield, etc
4
9.30%
Voters: 43. You may not vote on this poll

Official Poll: Windshield Cracks g-wagon 2019+

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Old 06-05-2021, 11:41 AM
  #26  
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Originally Posted by places
I think I got most of this lol.

Seriously though, this is probably the best answer I've heard pertaining to the windshield issue. So is it an install issue? Are these windshield being installed incorrectly (outside the tolerance levels)?
For those interested, there's a fairly comprehensive primer on ADAS at https://www.aaa.com/autorepair/artic...s-repair-costs
...and things that can go wrong in windshield installation -- http://www.tpglassworks.com/windshie...-installation/
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Old 06-06-2021, 04:15 PM
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Originally Posted by places
I think I got most of this lol.

Seriously though, this is probably the best answer I've heard pertaining to the windshield issue. So is it an install issue? Are these windshield being installed incorrectly (outside the tolerance levels)?
No, that's not it at all. The correct answer is the rubber gasket that the old G Wagen used as well. It allowed the windshield the flex and absorb the rock hits better.
The windshields on the current G Wagen are installed by robot. I have yet to hear of a stress fracture on a G Wagen windshield.
It's all rock damage.
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Old 06-06-2021, 08:18 PM
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Originally Posted by mercedesmax
No, that's not it at all. The correct answer is the rubber gasket that the old G Wagen used as well. It allowed the windshield the flex and absorb the rock hits better.
The windshields on the current G Wagen are installed by robot. I have yet to hear of a stress fracture on a G Wagen windshield.
It's all rock damage.
A rubber gasket around the windshield's perimeter does nothing to absorb direct impact of a rock.
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Old 06-07-2021, 01:41 PM
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Originally Posted by streborx
A rubber gasket around the windshield's perimeter does nothing to absorb direct impact of a rock.
It does if that's what's holding the windshield to the car. It allows a little flex in the glass. Modern windshields are epoxied directly to the chassis, no flex at all.

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Old 06-07-2021, 09:46 PM
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Originally Posted by mercedesmax
No, that's not it at all. The correct answer is the rubber gasket that the old G Wagen used as well. It allowed the windshield the flex and absorb the rock hits better.
The windshields on the current G Wagen are installed by robot. I have yet to hear of a stress fracture on a G Wagen windshield.
It's all rock damage.
I'm curious about the windshield flex theory. I'd like to see the flex from the windshield when a rock hit it (and the flex contributes to non-breakage). I wonder if the new windshield is just thinner glass and/or the glass is more fragile.
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