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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Wash, Wax, Detailing and Cosmetic protection/repairs Sun Roof Question
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      06-19-2018, 08:48 PM   #1
Brian Edward
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Sun Roof Question

On my 2013 528i, the air deflector that pops up when you open the sun roof is not like the old ones used to be. The design is not a flat edge all the way across to deflect air, but "notched" if that's what you would call it?.....Anyone know why this is?
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      06-19-2018, 11:41 PM   #2
ezaircon4jc
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Quote:
Originally Posted by Brian Edward View Post
On my 2013 528i, the air deflector that pops up when you open the sun roof is not like the old ones used to be. The design is not a flat edge all the way across to deflect air, but "notched" if that's what you would call it?.....Anyone know why this is?
Air flow management; kind of like a diffuser.
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      06-20-2018, 12:36 AM   #3
Brian Edward
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So it is designed to deflect some of the air over the car and some basically into it?.?
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      06-20-2018, 01:22 PM   #4
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So it is designed to deflect some of the air over the car and some basically into it?.?
I would say designed to divert most of the air over the car (past the hole in the roof) so the occupants don't get wind-blasted. It also helps keep dust and dirt out of the car (while driving, of course) as well as aerodynamically (though not to a great extent).
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      06-22-2018, 04:36 PM   #5
lsturbointeg
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I think most of it goes over the car as I don't feel anything at all when I put my hand down close to the roof
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      06-25-2018, 12:35 PM   #6
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I installed a glue on plastic defector on the roof to remove more of the wind noise. Works much better than OEM built in one.
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      07-03-2018, 09:57 PM   #7
Brian Edward
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Great Info

Thanks for the reply...B
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