E90Post
 


N54Tuning.com
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Help identify "mild screeching" noise when 2011 E92 328i comes to complete stop



Reply
 
Thread Tools Search this Thread
      04-07-2017, 10:19 PM   #1
limeyinca
Registered
limeyinca's Avatar
0
Rep
2
Posts

Drives: BMW 328i Coupe (E92, 2011)
Join Date: Apr 2017
Location: Hollywood, CA

iTrader: (0)

Hi everyone!

My otherwise mechanically excellent 2011 (California) 328i E92 SULEV 328i with 48,000 miles -- I thought mechanically excellent with a full service history and a clean bill of health -- started exhibiting a strange little noise when I come to a complete stop. I'm hoping some of the experts here might have heard this noise before, and know what it is.

So, after having gotten up to 5-10mph or more, and then coming to a complete stop, there is an odd little noise.

It sort of sounds like a bird squealing. It doesn't sound like its coming from the brake area, more like the engine bay. The sound is always the same, same tempo, same pitch. Same sound. Sort of sounds like a bird screeching 3 times.

I've had squeaky brakes on many cars before, and it has never sounded like this. At first I suspected a pulley or belt but being that it always sounds the same, a pulley or belt didn't seem right.

I managed to get a recording of. The URL is:



The sound starts at exactly 8s in the clip above. When I recorded it, I came to a complete stop right around 7.5s. You'll have to turn your sound up.

The sound persists for one or two more "revolutions" ater coming to a complete stop. But the sound never starts (or I don't hear it) until I am *almost* at a complete stop.

Any ideas?

Wheel bearing problem? (though it doesnt sound like any wheel bearing problem I've ever had before)

Thank you so much!!!

-Limey

Last edited by limeyinca; 04-07-2017 at 10:20 PM. Reason: (added SULEV)
Appreciate 0
      04-08-2017, 11:55 AM   #2
Flyboy161
Second Lieutenant
Flyboy161's Avatar
United_States
84
Rep
244
Posts

Drives: 2012 335i M Sport
Join Date: Apr 2014
Location: Perry, GA

iTrader: (0)

Garage List
2011 BMW 328i  [0.00]
2012 BMW E92 335i  [0.00]
Sounds like glazed brake pads. But you were stopped and not rolling at the 7.5s mark?

Last edited by Flyboy161; 04-08-2017 at 11:57 AM. Reason: Re-read the OP
Appreciate 0
      04-09-2017, 11:53 AM   #3
limeyinca
Registered
limeyinca's Avatar
0
Rep
2
Posts

Drives: BMW 328i Coupe (E92, 2011)
Join Date: Apr 2017
Location: Hollywood, CA

iTrader: (0)

Quote:
Originally Posted by Flyboy161 View Post
Sounds like glazed brake pads. But you were stopped and not rolling at the 7.5s mark?
that is correct! at 7.5s the car had been fully stationary for about 0.1 or 0.2 seconds. i would say that about 9/10 of the sound is heard when the car is stopped!

that is what is making me scratch my head on this one!!!!
Appreciate 0
      04-09-2017, 01:24 PM   #4
dannyjones
First Lieutenant
24
Rep
318
Posts

Drives: 2011 BMW 335i M-Sport
Join Date: Jan 2014
Location: Florida, USA

iTrader: (0)

I'm not sure if the 328i is anything like the 335i in this regard but a common whistling/chirping noise on the 335i when braking is when the pcv valve is bad and air is getting through the front seal. I'm sure an expert will chime in to confirm it as a possibility or not, but will give you something to search for in the meantime.
Appreciate 0
      04-09-2017, 02:35 PM   #5
Flyboy161
Second Lieutenant
Flyboy161's Avatar
United_States
84
Rep
244
Posts

Drives: 2012 335i M Sport
Join Date: Apr 2014
Location: Perry, GA

iTrader: (0)

Garage List
2011 BMW 328i  [0.00]
2012 BMW E92 335i  [0.00]
Then that is peculiar. I'm stumped
Appreciate 0
      04-10-2017, 03:49 PM   #6
BluesDriver
Private
3
Rep
73
Posts

Drives: 2011 328i Coupe
Join Date: Nov 2011
Location: Los Angeles

iTrader: (0)

Is your climate control on? If so, turn it off and see if it still making the noise.

I'm getting a somewhat similar noise on my 2011 when braking but it stops once I turn off the fan.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


All times are GMT -4. The time now is 09:12 AM.




e90post
e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST