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Discussion Starter · #1 ·
So winter has started and I've found a flaw in design of the defrost for the windshield. It's been fine in snow and rain. But I hit some freezing rain on the highway and for some reason the center of the windshield kept icing up. So I felt the vent to see if there was airflow in the center and noticed that the center of the vent isn't an air passage. It only exits to defrost in front of the driver and passenger. Most cars have airflow right across the entire top of the dash. It's really an annoying flaw cause the camera is right in the center and in freezing rain it just builds up ice right in front of the camera.
 

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So winter has started and I've found a flaw in design of the defrost for the windshield. It's been fine in snow and rain. But I hit some freezing rain on the highway and for some reason the center of the windshield kept icing up. So I felt the vent to see if there was airflow in the center and noticed that the center of the vent isn't an air passage. It only exits to defrost in front of the driver and passenger. Most cars have airflow right across the entire top of the dash. It's really an annoying flaw cause the camera is right in the center and in freezing rain it just builds up ice right in front of the camera.
I'm pretty sure the defrost is for inside vehicle to clear the fog away and us not designed to melt ice on entire windsheild
 

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Discussion Starter · #3 · (Edited)
It's actually for both inside and outside...it warms the windshield to keep ice from building up on the outside especially at highway speeds where in northern climates ice can build very quick. We can get to - 40c with wind standing still, so at those speeds windchill is even higher.
 
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