Any way to reduce the high-speed side-windows wind noise?

S6F · 03-01-2021, 03:53 PM

Or am I the only one who thinks it’s excessive? Not whistling, but buffeting sounds above, say, 65mph. Wish they offered acoustic glass for the G30! Thanks.
2019 540iXMSport

Dephead2004 · 03-01-2021, 04:33 PM

You could try using a thin bead of black silicon around the join of the door mirror and it's shell. Worked for me. Not perfect but an improvement. Cost is almost zero and if you don't like it, peel it off

GL · 03-01-2021, 08:20 PM

This is the only reason I'm not considering buying my vehicle at lease end. Fantastic vehicle with an unfortunate design flaw!

paquet · 03-02-2021, 10:15 AM

Honestly, never noticed it.
But I've been told by BMW SA's that mirror wind noise is a common thing if you notice it - and it's much less in an M car (now he could just be shitting me...)

aerof16 · 03-02-2021, 10:48 AM

I listened for this on my way to work this morning, after reading this thread. My drive is 10 minutes @ 75mph plus 10 minutes @ 45-55 mph.

I didn't notice anything other than what I would call wind rush. I can hear air passing over the car but I don't hear any buffeting. With the radio on, it's a non issue for me. Even with the radio off, I think the car is exceptionally quiet in the cabin. Maybe go drive another G30 and see if you notice it?

The only time I hear buffeting is if I have the front windows down without the rear windows down, which I think kind of sucks. Even with all the windows down, the wind seems to smack you around a little bit if you're driving at those speeds, more so than other cars I have owned.

LuvMyE92 · 03-02-2021, 12:21 PM

Never noticed it, can't hear any wind noise that's louder than the road/tire noise.

Had this issue on another car, E34 perhaps? It was the mirror housing.

GL · 03-02-2021, 04:59 PM

I have had 4-5 loaner G30's. All have the noise. I have taken the entire mirror assembly apart. I have replaced the gasket/foam in the area where the mirror mounts to the car. I have taped every seam on the left side of the car to see if I could isolate an alignment issue. No difference.

I'm sure it's because the rest of the car is so quiet. The air over the mirror is more noticeable because it's about the only noise. For those saying the noise is no more than the tire noise: the difference is the frequency of the noise. Apparently some of us are more sensitive to the mid/upper range noise generated by the wind as opposed to the lower frequencies of the tires.

The aggravating part of this is my wife's lowly Acura MDX has acoustic glass on the driver and passenger side - at a lower price point. The difference is very noticeable when switching vehicles.

The best way to hear it is to drive at 55-60 mph, then quickly accelerate (for example passing) to the upper 60's to mid 70's. That air on the left side of the car should not be as noisy as it is.

To me, no acoustic glass is just a tacky way for BMW to differentiate a 540 from a 750 (the lowest model that does acoustic glass in the sedan lineup.)

S6F · 03-02-2021, 05:26 PM

Thanks so much for confirming what I’ve noticed since day one. I’m not crazy! Wish the noise could be mitigated since it diminishes my interest in purchasing the 540 after the lease ends.

THEX5BEAST · 04-17-2021, 11:34 AM

Quote:

Originally Posted by S6F

Or am I the only one who thinks it’s excessive? Not whistling, but buffeting sounds above, say, 65mph. Wish they offered acoustic glass for the G30! Thanks.
2019 540iXMSport

These cars are so quiet any sounds can be annoying. I took mine in for this complaint a week ago. The dealership replaced the outer shell of the drivers side mirror. Problem solved.

THEX5BEAST · 04-17-2021, 11:41 AM

Quote:

Originally Posted by S6F

Thanks so much for confirming what I’ve noticed since day one. I’m not crazy! Wish the noise could be mitigated since it diminishes my interest in purchasing the 540 after the lease ends.

Dealership fixed mine with a new mirror cap and gasket. These cars are soo quiet you could hear a pin drop so any sounds are annoying.

ejlover06 · 04-19-2021, 03:32 AM

Does it have a different part code or shape? Or yours was damaged? How did it solve that?

m@rco · 04-23-2021, 12:55 PM

Quote:

Originally Posted by THEX5BEAST

Dealership fixed mine with a new mirror cap and gasket. These cars are soo quiet you could hear a pin drop so any sounds are annoying.

Would like to learn more! Also like to see a picture of someone who 'created beads' (above).

03-01-2021, 03:53 PM	#1
S6F First Lieutenant 95 Rep 334 Posts Drives: '19 540ixMsport Join Date: Aug 2010 Location: Central NJ iTrader: (1)	Any way to reduce the high-speed side-windows wind noise? Or am I the only one who thinks it’s excessive? Not whistling, but buffeting sounds above, say, 65mph. Wish they offered acoustic glass for the G30! Thanks. 2019 540iXMSport
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03-01-2021, 04:33 PM	#2
Dephead2004 Lieutenant 179 Rep 548 Posts Drives: G30 520i Join Date: Feb 2018 Location: UK iTrader: (0)	You could try using a thin bead of black silicon around the join of the door mirror and it's shell. Worked for me. Not perfect but an improvement. Cost is almost zero and if you don't like it, peel it off Last edited by Dephead2004; 03-02-2021 at 04:52 PM..
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03-01-2021, 08:20 PM	#3
GL Private First Class 121 Rep 165 Posts Drives: 2022 X7 M50i, 2019 540i Join Date: May 2018 Location: NW Arkansas iTrader: (0)	This is the only reason I'm not considering buying my vehicle at lease end. Fantastic vehicle with an unfortunate design flaw!
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03-02-2021, 10:15 AM	#4
paquet Lieutenant 630 Rep 433 Posts Drives: 2019 540i M Sport etc Join Date: Sep 2020 Location: FL iTrader: (0)	Honestly, never noticed it. But I've been told by BMW SA's that mirror wind noise is a common thing if you notice it - and it's much less in an M car (now he could just be shitting me...)
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03-02-2021, 10:48 AM	#5
aerof16 Private First Class 81 Rep 133 Posts Drives: 2017 540i Join Date: Dec 2020 Location: Arizona iTrader: (0)	I listened for this on my way to work this morning, after reading this thread. My drive is 10 minutes @ 75mph plus 10 minutes @ 45-55 mph. I didn't notice anything other than what I would call wind rush. I can hear air passing over the car but I don't hear any buffeting. With the radio on, it's a non issue for me. Even with the radio off, I think the car is exceptionally quiet in the cabin. Maybe go drive another G30 and see if you notice it? The only time I hear buffeting is if I have the front windows down without the rear windows down, which I think kind of sucks. Even with all the windows down, the wind seems to smack you around a little bit if you're driving at those speeds, more so than other cars I have owned.
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03-02-2021, 12:21 PM	#6
LuvMyE92 Occasionally frequent poster 3000 Rep 2,744 Posts Drives: CT5V-Blackwing Join Date: Jan 2008 Location: RTP NC, USA iTrader: (0)	Never noticed it, can't hear any wind noise that's louder than the road/tire noise. Had this issue on another car, E34 perhaps? It was the mirror housing. __________________ Current inventory: F22 & G05 Cadillac CT5-V Blackwing w/3 pedals Past: E24,E28(3),E34,E36,E37,E38(2),E39(4),E46,E89,E92 (obviously),F01,F06,F10,F30,F87,G12,G30(2),G82(2)
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03-02-2021, 04:59 PM	#7
GL Private First Class 121 Rep 165 Posts Drives: 2022 X7 M50i, 2019 540i Join Date: May 2018 Location: NW Arkansas iTrader: (0)	I have had 4-5 loaner G30's. All have the noise. I have taken the entire mirror assembly apart. I have replaced the gasket/foam in the area where the mirror mounts to the car. I have taped every seam on the left side of the car to see if I could isolate an alignment issue. No difference. I'm sure it's because the rest of the car is so quiet. The air over the mirror is more noticeable because it's about the only noise. For those saying the noise is no more than the tire noise: the difference is the frequency of the noise. Apparently some of us are more sensitive to the mid/upper range noise generated by the wind as opposed to the lower frequencies of the tires. The aggravating part of this is my wife's lowly Acura MDX has acoustic glass on the driver and passenger side - at a lower price point. The difference is very noticeable when switching vehicles. The best way to hear it is to drive at 55-60 mph, then quickly accelerate (for example passing) to the upper 60's to mid 70's. That air on the left side of the car should not be as noisy as it is. To me, no acoustic glass is just a tacky way for BMW to differentiate a 540 from a 750 (the lowest model that does acoustic glass in the sedan lineup.)
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03-02-2021, 05:26 PM	#8
S6F First Lieutenant 95 Rep 334 Posts Drives: '19 540ixMsport Join Date: Aug 2010 Location: Central NJ iTrader: (1)	Thanks so much for confirming what I’ve noticed since day one. I’m not crazy! Wish the noise could be mitigated since it diminishes my interest in purchasing the 540 after the lease ends.
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04-19-2021, 03:32 AM	#11
ejlover06 First Lieutenant 105 Rep 335 Posts Drives: 2017 G30 520 1.6lt Join Date: Dec 2019 Location: Ankara iTrader: (0)	Does it have a different part code or shape? Or yours was damaged? How did it solve that? __________________ 2017 G30 520 (1.6lt) 2016 S1000RR 2014 W205
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