08-02-2013, 09:16 AM | #1 |
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Wind noise- It's the mirrors
Featured on BIMMERPOST.com X1 F30 The one thing I find interesting about these contemporary BMW mirrors is that they don't include any of the "bumps and channels" that mirrors typically posses to break up the airflow and reduce noise. This is an E34 side mirror. Note the little "bumps" on the side of the housing. They exist solely to reduce noise. An unfortunate side effect is a very, very small increase in drag. Perhaps this quest for "Efficient Dynamics" went a tad too far. I'm contemplating testing my theory by affixing some sort of spoilers on my mirrors to see if it has any effect. My noise isn't nearly as bothersome as many have complained, but there is a hint of it for certain. I'm guessing the F30 either has more insulation than the X1 or they did a better job of insulating the point where the mirror is attached to the door frame. |
08-02-2013, 09:20 AM | #2 |
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I wondered the exact same thing because my E36 had dimples on the mirror to reduce wind noise. I might see if I can get something to place on the drivers side mirror, and then if the noise seems to be coming from the passenger side only then its a fair bet you hit on it.
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08-02-2013, 09:23 AM | #3 |
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I should add that this isn't necessarily a universal thing since many have indicated that they have had whistling noises and other wind noises that were attributed to poorly fitted trim and misaligned doors. I personally haven't had any noises of that sort, just a hint of buffeting that is definitely noise OUTSIDE the car, not air entering the cabin.
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08-27-2013, 08:38 AM | #5 | |
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08-27-2013, 10:09 AM | #6 |
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Yes! I must add. I got a loaner MY14 X1 while my car is in service and also hear the same type of wind noise and I suspect this to be the mirror design as well.
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08-27-2013, 11:32 AM | #8 |
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08-27-2013, 11:34 AM | #9 |
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