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2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) General G20 Sedan / G22 Coupe / G26 Gran Coupe Discussions Grinding/wind noise

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      12-03-2019, 04:05 AM   #23
Glaede
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So, are we all running the same 18" Style 790 wheel?

This wheel style:
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      12-03-2019, 04:08 AM   #24
clausmoll
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Quote:
Originally Posted by XXXX View Post
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Originally Posted by clausmoll View Post
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Originally Posted by XXXX View Post
Do you, who have this problem, have 18 or 19"? I borrowed a 320d xdrive sedan with 19" and it had not this sound.
In my case it's 18". One of the summer tires sets could have been 17" but not sure. I also tried a 320d Touring 2019 from the dealer, and there were no issues found here.
I thougt that it could be the front diff at first but I see that you got the 2wd? So it must be something else.
Yes. I only have 2wd.
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      12-03-2019, 04:09 AM   #25
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Quote:
Originally Posted by Glaede View Post
So, are we all running the same 18" Style 790 wheel?

This wheel style:
Yes. These are similar to my summer tires
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      12-03-2019, 04:10 AM   #26
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Quote:
Originally Posted by kohlzor View Post
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Originally Posted by clausmoll View Post
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Originally Posted by XXXX View Post
Were it 18 or 19" on the car with no issues?
No - those were 17"
Is your moonroof tilted? I only hear the sound from the drivers window when I have it on tilt makes no sense but that's what I have discovered so far
I have no sun roof
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      12-03-2019, 04:23 AM   #27
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Originally Posted by clausmoll View Post
I have no sun roof
Neither do I. Also 2wd here.

Are you running on a different winter setup now Claus or the same wheels like I do?
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      12-03-2019, 05:41 AM   #28
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Quote:
Originally Posted by Glaede View Post
So, are we all running the same 18" Style 790 wheel?

This wheel style:
Yes, I have the same wheels but I have Bridgestone
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      12-03-2019, 06:28 AM   #29
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Hi guys,

New to this forum.

Ended up here after some googleing since my brand new 2020 330d touring xdrive m-sport seem to have the same wind/road noise as described in this thread.

My perception is that the noise is coming from the right hand side foot well.

My car is on studded 18" 224/45 tires and is equipped with acoustic glas.

I do not belive the noise is from the tires since my previous car 2017 330d xdrive m-sport did not make such a noise on studded tires. The noise varies with speed. The noise is noticeable from about 50 km/h and up, around 130 km/h it starts to get really annoying.

I hope someone will find the cause of the noise. I will be visiting the dealer next week and let you know what happens.
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      12-03-2019, 06:37 AM   #30
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Quote:
Originally Posted by jugga View Post
Hi guys,

New to this forum.

Ended up here after some googleing since my brand new 2020 330d touring xdrive m-sport seem to have the same wind/road noise as described in this thread.

My perception is that the noise is coming from the right hand side foot well.

My car is on studded 18" 224/45 tires and is equipped with acoustic glas.

I do not belive the noise is from the tires since my previous car 2017 330d xdrive m-sport did not make such a noise on studded tires. The noise varies with speed. The noise is noticeable from about 50 km/h and up, around 130 km/h it starts to get really annoying.

I hope someone will find the cause of the noise. I will be visiting the dealer next week and let you know what happens.
Thanks for sharing! Keep us posted.
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      12-03-2019, 07:08 AM   #31
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Quote:
Originally Posted by jugga View Post
Hi guys,

New to this forum.

Ended up here after some googleing since my brand new 2020 330d touring xdrive m-sport seem to have the same wind/road noise as described in this thread.

My perception is that the noise is coming from the right hand side foot well.

My car is on studded 18" 224/45 tires and is equipped with acoustic glas.

I do not belive the noise is from the tires since my previous car 2017 330d xdrive m-sport did not make such a noise on studded tires. The noise varies with speed. The noise is noticeable from about 50 km/h and up, around 130 km/h it starts to get really annoying.

I hope someone will find the cause of the noise. I will be visiting the dealer next week and let you know what happens.
I don't think it is the tires, but i think that different wheels can reenforce the noise, and the 18" m-sport wheels seems to be the most common here and probably the worst? It would be interesting if anyone who have 19" also have this noise.
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      12-04-2019, 12:49 AM   #32
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Quote:
Originally Posted by XXXX View Post
Yes, I have the same wheels but I have Bridgestone
So did I when I recieved the car. It came with Bridgestone Turanza's and the noise was present back then as well.
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      12-04-2019, 12:51 AM   #33
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It seems like we are a bunch of guys that all have the same problem. Do we all have the M-Sport version with M-Sport brakes and Sports transmission?

I'm just trying to find a pattern here ;-)
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      12-04-2019, 01:11 AM   #34
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Quote:
Originally Posted by Glaede View Post
It seems like we are a bunch of guys that all have the same problem. Do we all have the M-Sport version with M-Sport brakes and Sports transmission?

I'm just trying to find a pattern here ;-)
I have M-sport (non adaptive), M-sport 18", M-brakes, acoustic glass
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      12-04-2019, 03:12 AM   #35
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Quote:
Originally Posted by XXXX View Post
I have M-sport (non adaptive), M-sport 18", M-brakes, acoustic glass
Same here. 330i Touring M-sport.
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      12-05-2019, 01:56 AM   #36
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Morning..

So, I've noticed the wind/grinding noise is also present in idle now! I opened the hood and it sounds like its comming from the area around the turbo!

I have recorded it on a video. Turn your volume up to hear it.

https://photos.app.goo.gl/io5RrdzR235YY76W6
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      12-05-2019, 05:26 AM   #37
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Very good find, also the video, thanks!

Although I doubt it is the turbo itself, as in my case the pitch of the sound stays the same regardless of revs, also the volume is pretty much constant.

I am very curios now what could be the culprit. And I'm starting to worry that this might be considered by BMW as a "normal" engine sound (though I hope I'm wrong).
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      12-05-2019, 10:50 AM   #38
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I don't think that mine noise have something to do with the engine. I'm quite sure that it has something to do with the transmisson or bearings. I can't hear it when the car stand still.
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      12-05-2019, 10:52 AM   #39
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But the sound of the video have the same tone, so I really don't know.
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      12-05-2019, 11:00 AM   #40
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Quote:
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But the sound of the video have the same tone, so I really don't know.
I can't really hear the sound in the cabin when holding still either. But if I pop the hood I have the exact same noise from the engine from outside. Wether this is a "normal" sound from the engine or infact the culprit we are looking for, I'm not entirely sure of.
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      12-05-2019, 11:40 AM   #41
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Quote:
Originally Posted by clausmoll View Post
Quote:
Originally Posted by XXXX View Post
But the sound of the video have the same tone, so I really don't know.
I can't really hear the sound in the cabin when holding still either. But if I pop the hood I have the exact same noise from the engine from outside. Wether this is a "normal" sound from the engine or infact the culprit we are looking for, I'm not entirely sure of.
I doubt it is the same because I have a 320d
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      12-07-2019, 09:23 AM   #42
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Quote:
Originally Posted by Glaede View Post
Morning..

So, I've noticed the wind/grinding noise is also present in idle now! I opened the hood and it sounds like its comming from the area around the turbo!

I have recorded it on a video. Turn your volume up to hear it.

https://photos.app.goo.gl/io5RrdzR235YY76W6
I did the same today and I also have the same sound at idle. So strange because I got a 320 diesel. Maybe it's servosound? Or it could be the turbo but than it's not the sound I hear at speed because that sound doesn't follow the revs.
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      12-09-2019, 03:26 AM   #43
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Quote:
Originally Posted by clausmoll View Post
Same here. 330i Touring M-sport.
Quote:
Originally Posted by XXXX View Post
I have M-sport (non adaptive), M-sport 18", M-brakes, acoustic glass
Quote:
Originally Posted by XXXX View Post
I did the same today and I also have the same sound at idle. So strange because I got a 320 diesel. Maybe it's servosound? Or it could be the turbo but than it's not the sound I hear at speed because that sound doesn't follow the revs.
Could it be the gearbox?
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      12-09-2019, 04:18 AM   #44
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I have had a talk with my dealer and my tire guy, the dealer acknowledged the noise and is willing to take the car in for troubleshooting. Their first action would be to try a different set of tires.

My tire guy who sold me my studded Continentals said that is not uncommon for tires to need a break in period before they quiet down. He recommended me to run them for 3000-4000km before any other troubleshooting.

Hopefully the run in will be enough, I will try that first and report back in a couple of weeks if the noise hasnīt gone away.
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