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Ok I read the about the problem with the sunroof. I have NO sunroof, BUT the same wuuh, wuuh, wuuh, pulsating noise from the pressure changing in the cabin occurs when the windows a cracked open. It seems to be the worse when 1 single window is open 1/2 way or more. It eases when another one is cracked, but not completely. it happens @ 35-50+ MPH.

Would wind deflectord on the doors help? Any "clear/non obstrusive" ones out there?

Anyone else having this issue?

Thanks,
Norbert
 

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Thats normal in some of the cars, it is what I call the bottle gulping affect :D . The air is pushing in pressurizing your cabin, as it pressurize it force air to escape thru the same window. The 2 air stream is fighting each other, thats the noise you heard. I dont think a vent visor would help much in this case. A simple way to solve this problem is to open another window slightly, giving the air another path to go.
 
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