01-03-2019, 02:17 AM | #1 |
F90_M5
44
Rep 103
Posts |
F90 M5 Unknown ANNOYING Noise
Starting a new thread on this topic since since large number of F90 are being affected. Please post reply if you have the same problem.
Let's solve this together. Previous Post Link: https://f90.bimmerpost.com/forums/sh...t+title&page=3 My new F90 M5 makes really annoying, disturbing, weird, embarrassing air leaking/metal scratching type of sound To see if your M5 makes the same noise, turn off the music and refer to my reproduction conditions below. The conditions observed so far for me are: - Occurs at low speed between 15-40 mph. (worst and most often at around 20 mph) - Happens more when outside temperature is cool or cold - When car has cooled down for enough time. A day or overnight - Either when gas pedal is pushed or released - Does not happen when not moving - Sound goes away after driving for a while or highway It's the kind of sound when huge bus or trucks make when they stop and go. I have been working with my dealerships service center for the last 3 months but no fix yet but I'm taking it in for another check this week. Will keep this thread updated and hope to hear from others too. Below is my M5's log. |
01-03-2019, 03:56 PM | #2 |
Brigadier General
2272
Rep 3,297
Posts |
That would drive me NUTS! WTF!!!! Hope you find the cause. And the fix.
Mike
__________________
2018 M5 and 2019 Porsche Boxster GTS Prior. '94 325is, '97 M3 Lux, '16 M2 |
Appreciate
0
|
01-03-2019, 04:46 PM | #3 | |
Private First Class
75
Rep 142
Posts |
Quote:
It would come and go, but more so when it was cold. - the only way I could get it to reproduce on command was driving over a speed bump slowly. |
|
Appreciate
0
|
01-03-2019, 04:59 PM | #4 | ||
Private First Class
30
Rep 101
Posts |
Quote:
Actually, that's an odd sound. Something not right. |
||
Appreciate
0
|
01-03-2019, 06:25 PM | #5 |
Private
29
Rep 63
Posts |
This may not be it at all, but here goes. This drew my attention:
- Either when gas pedal is pushed or released Could it be the seat? Your body will shift as the car accelerates and decelerates, particularly at lower speeds. I had a problem with the seat in my M550ix, though the sound differed (more of a pop), and the M550 has different seats from the M5. Thread here: https://g30.bimmerpost.com/forums/sh....php?t=1560595 To see if it is the seat, try sitting in the car, while stopped, and engine off. Then put your foot on the footwell and push back into the seat as if you are accelerating. See if that pushes your butt down and makes the noise. |
Appreciate
0
|
01-03-2019, 06:31 PM | #6 | |
Captain
420
Rep 862
Posts |
Quote:
Something is being actuated.
__________________
Retired 2016 BMW 550i xDrive MSport | 2013 BMW 550i xDrive MSport | 2012 BMW 535i xDrive | 1988 BMW 325ic | 1984 BMW 318i
|
|
Appreciate
0
|
01-03-2019, 06:36 PM | #7 |
Captain
420
Rep 862
Posts |
Actually...thinking about how a kazoo works...I bet it's some sort of gasket or weather stripping that's catching air and vibrating.
__________________
Retired 2016 BMW 550i xDrive MSport | 2013 BMW 550i xDrive MSport | 2012 BMW 535i xDrive | 1988 BMW 325ic | 1984 BMW 318i
|
Appreciate
0
|
01-03-2019, 07:42 PM | #9 |
Captain
420
Rep 862
Posts |
Listening to it again, you could be right. it is s short-ish sound.
Very curious. Can't wait to find out!
__________________
Retired 2016 BMW 550i xDrive MSport | 2013 BMW 550i xDrive MSport | 2012 BMW 535i xDrive | 1988 BMW 325ic | 1984 BMW 318i
|
Appreciate
0
|
01-03-2019, 08:58 PM | #11 |
Plenipotentiary
2614
Rep 3,046
Posts |
Woo woo!
|
Appreciate
1
stealth70mde375.50 |
01-03-2019, 10:22 PM | #12 | |
F90_M5
44
Rep 103
Posts |
Quote:
|
|
Appreciate
0
|
01-03-2019, 10:24 PM | #13 |
F90_M5
44
Rep 103
Posts |
|
Appreciate
0
|
01-03-2019, 10:25 PM | #14 |
F90_M5
44
Rep 103
Posts |
|
Appreciate
0
|
01-03-2019, 10:26 PM | #15 | |
F90_M5
44
Rep 103
Posts |
Quote:
Mine happens without bumps on flat road. |
|
Appreciate
0
|
01-03-2019, 10:28 PM | #16 | |
F90_M5
44
Rep 103
Posts |
Quote:
Same mechanism of how your fart make sound. It does sound like some air leaking and vibrating metal or how to put it, air scratching metal part? |
|
Appreciate
0
|
01-03-2019, 10:29 PM | #17 |
F90_M5
44
Rep 103
Posts |
|
Appreciate
0
|
01-03-2019, 10:31 PM | #18 |
F90_M5
44
Rep 103
Posts |
Just took it in today. Got brand new 750i as loaner.
Nice car! No comparison to M5 in terms of fun driving but damn the ride is so smooth. It just licks all the holes on the road(pot holes, manholes). Last edited by F90_M5; 01-03-2019 at 10:49 PM.. |
Appreciate
0
|
01-03-2019, 11:01 PM | #19 |
Enlisted Member
8
Rep 30
Posts |
Often 1-2 seconds but I have experienced 3-4 seconds of continuous squeal. Often when coming on or off the throttle at low speed. I'm leaning more to suspension adjustment because it goes away as though the car has adjusted to a changed load.
|
Appreciate
1
CGM18.00 |
01-04-2019, 05:42 AM | #20 |
Second Lieutenant
255
Rep 255
Posts |
|
Appreciate
0
|
01-04-2019, 10:08 AM | #21 |
Captain
420
Rep 862
Posts |
Have side skirts, PPF, or other mods been added to these cars?
__________________
Retired 2016 BMW 550i xDrive MSport | 2013 BMW 550i xDrive MSport | 2012 BMW 535i xDrive | 1988 BMW 325ic | 1984 BMW 318i
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|