Next Level Auto Brokers
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Forum > BMW M3 (F80) and BMW M4 (F82) General Forum

Post Reply
 
Thread Tools Search this Thread
      10-30-2014, 07:24 PM   #23
milpar34
Private First Class
milpar34's Avatar
36
Rep
106
Posts

Drives: 2015 F80 M3 (SO/BLK)
Join Date: Nov 2011
Location: Arlington, VA

iTrader: (0)

Quote:
Originally Posted by P-TownM3
Quote:
Originally Posted by milpar34 View Post
I had the same problem on my E92 and it most definitely was the diff. my service advisor said it's a know problem and they would look into possibly replacing the diff. since it was a lease and i was turning it in a few days i didn't do anything.

The really shitty moment was about 1,000 miles into my new F80 I heard the same noise. Only once and not since then but I'm really worried there is a flaw with BMW's rear diff's.
I noise in my e92 M3 (which was fixed with changing the Diff oil) was a much different sound than this. It was more of a deep thumping, where as this sound is a loud, sharp grinding metallic sound.
Ptown, the sound I was getting from my differential was an aluminum can/popping sound. Very metallic sounding. Very embarrassing. Lots of "tings" and "pings" (no offense to any Asian members )
__________________
2019 G07 X7 4.0 - Black Sapphire
2015 F80 M3 - Sakhir Orange / BLK (RETIRED)
2012 E92 M3 - Interlagos Blue / BLK (RETIRED)
2008 E60 528i - Space Grey / BLK (RETIRED)
Appreciate 1
      10-30-2014, 11:09 PM   #24
-JLT-
Brigadier General
-JLT-'s Avatar
3420
Rep
4,181
Posts

Drives: '22 X4M COMP, '23 iX xDrive50
Join Date: Dec 2006
Location: CHITOWN

iTrader: (1)

i have been hearing the metallic grinding for the past few days and i have 6600 miles. wtf
__________________
-JLT-
Appreciate 0
      10-31-2014, 01:01 AM   #25
Wah
IG@i.am.wah
Wah's Avatar
United_States
2779
Rep
3,815
Posts

Drives: M2 CS
Join Date: Jul 2009
Location: NJ

iTrader: (4)

Garage List
Definitely rocks stuck in the rotor. Just touch the dust shield and you can see how loud it is. I wish they made it out of a different material or something... its ridiculous. It makes the car sound like something is broken. Last time I had to jack the car up and take the wheel off to find it. Try backing up or using the e-brake while moving slowly.
Appreciate 0
      10-31-2014, 01:08 AM   #26
Lups
...
Lups's Avatar
11820
Rep
15,400
Posts

Drives: I don't own a car.
Join Date: Mar 2014
Location: Lost as usual

iTrader: (0)

Quote:
Originally Posted by Wah View Post
Definitely rocks stuck in the rotor. Just touch the dust shield and you can see how loud it is. I wish they made it out of a different material or something... its ridiculous. It makes the car sound like something is broken. Last time I had to jack the car up and take the wheel off to find it. Try backing up or using the e-brake while moving slowly.
I got a rock in just a few days ago. That noise stopped my heart, I was so sure I had run into the hippo crossroad guard, something really bad. Thank Coffee I was at a body shop at the time talking about exhaust systems, the boys helped me out and me and my happily quiet Peter went for a school run!

Horrible moment.
__________________
Quote:
Originally Posted by Joekerr View Post
You're still a little new here, so I'll let you in on a little secret. Whenever Lups types gibberish, this is an opportunity for you to imagine it to be whatever you'd like it to be.
Quote:
Originally Posted by Delta0311 View Post
How would you know this? Did mommy catch you jerking off to some Big Foot porn ?
Appreciate 0
      10-31-2014, 01:34 AM   #27
Wah
IG@i.am.wah
Wah's Avatar
United_States
2779
Rep
3,815
Posts

Drives: M2 CS
Join Date: Jul 2009
Location: NJ

iTrader: (4)

Garage List
Quote:
Originally Posted by Lups View Post
I got a rock in just a few days ago. That noise stopped my heart, I was so sure I had run into the hippo crossroad guard, something really bad. Thank Coffee I was at a body shop at the time talking about exhaust systems, the boys helped me out and me and my happily quiet Peter went for a school run!

Horrible moment.
You're lucky it was just a moment... mine lasted a week or two. The rock wouldn't work itself out. It got so bad people were staring at me while my car was screeching and clanking down the street like some broken down hoopty.
Appreciate 0
      10-31-2014, 01:48 AM   #28
Lups
...
Lups's Avatar
11820
Rep
15,400
Posts

Drives: I don't own a car.
Join Date: Mar 2014
Location: Lost as usual

iTrader: (0)

Quote:
Originally Posted by Wah View Post
You're lucky it was just a moment... mine lasted a week or two. The rock wouldn't work itself out. It got so bad people were staring at me while my car was screeching and clanking down the street like some broken down hoopty.
lol I might have read a rant or two about that, and I never understood you till that second I hit the reverse and was doing about 2 miles an hour and heard it. My life stopped.
__________________
Quote:
Originally Posted by Joekerr View Post
You're still a little new here, so I'll let you in on a little secret. Whenever Lups types gibberish, this is an opportunity for you to imagine it to be whatever you'd like it to be.
Quote:
Originally Posted by Delta0311 View Post
How would you know this? Did mommy catch you jerking off to some Big Foot porn ?
Appreciate 0
      11-01-2014, 08:54 AM   #29
AMPowerJ
One mod leads to another ...
AMPowerJ's Avatar
United_States
415
Rep
2,900
Posts

Drives: 2014 F10 M5
Join Date: Apr 2008
Location: Blythewood, SC

iTrader: (10)

I hope it's just a rock. I've gotten the sound a couple times in my 550 miles of ownership. One time it sounded like a dog barking.
__________________

Current: 2014 F10 M5
Previous: 2015 F80 M3, 2013 E92 M3, 2013 F10 M5, 2009 E90 M3, 1998 E36 M3
Appreciate 0
      11-01-2014, 11:56 AM   #30
m3ct
Lieutenant
m3ct's Avatar
United_States
351
Rep
458
Posts

Drives: 2022 M3 Competition xDrive Bro
Join Date: Aug 2013
Location: CT

iTrader: (0)

I get it usually after it rains, never seems to last more than one or 2 driving sessions
Appreciate 0
      11-01-2014, 12:21 PM   #31
whitstap
Private First Class
80
Rep
122
Posts

Drives: 15 f80 m3
Join Date: Apr 2014
Location: Jupiter, FL

iTrader: (2)

From what I understand the plastic bottle crunching noise comes from rust that builds on parking brake while parked, and it says something in owners manual about applying the hand brake lightly while driving slowly to clean it off after rain or car wash to eliminate the noise...I only heard it a few times on my f80 in 3k miles but keep it garaged, haven't washed it much lol and it hasn't rained much lately in our area plus it's flat here so don't always pull hand brake when parked good luck that's my take, haven't heard noise since I've been cleaning off the e-brake per the manual when needed
Appreciate 0
      11-02-2014, 11:08 AM   #32
ss134
Brigadier General
ss134's Avatar
United Kingdom
229
Rep
3,899
Posts

Drives: F80 M3
Join Date: Feb 2009
Location: Germany/UK

iTrader: (1)

Quote:
Originally Posted by P-TownM3 View Post
I'm not buying that explanation. No way little pebbles stuck around a brake shield could make the very loud metal on metal grinding sound that I heard.
The sound I heard sounded like my exhaust had fallen off and was being dragged under the car..........believe it or not it was small stones stuck in the heat shield.
__________________
2014 AW F80 M3 DCT
2011 AW E90 M3 DCT - Sold
2010 JZB E90 M3 DCT - Sold
2009 6MT E90 LCI 335i M -Sport - Sold
Appreciate 1
      11-04-2014, 10:44 AM   #33
rkaregaran
New Member
1
Rep
25
Posts

Drives: '15 M4
Join Date: Jan 2007
Location: San Diego, CA, USA

iTrader: (0)

I've been getting it since last night (400 miles, non-CCB, no wash yet, rained a couple of days on the weekend). Its probably one of the most awful sounds I've heard coming out of any car... This is ridiculous. Tried pulling the ebrake slightly and the noise definitely got worse.

Will try to move it back and forward a few times, pulling the ebrake slightly to see if I can dislodge the mysterious pebble...or maybe my car will just explode.
Appreciate 0
      11-04-2014, 10:56 AM   #34
curehead
Second Lieutenant
curehead's Avatar
Luxembourg
78
Rep
206
Posts

Drives: F80 M3
Join Date: Jan 2014
Location: Luxembourg

iTrader: (0)

Quote:
Originally Posted by rkaregaran View Post
I've been getting it since last night (400 miles, non-CCB, no wash yet, rained a couple of days on the weekend). Its probably one of the most awful sounds I've heard coming out of any car... This is ridiculous. Tried pulling the ebrake slightly and the noise definitely got worse.

Will try to move it back and forward a few times, pulling the ebrake slightly to see if I can dislodge the mysterious pebble...or maybe my car will just explode.
ebrake? handbrake?
Appreciate 0
      11-04-2014, 11:18 AM   #35
AMPowerJ
One mod leads to another ...
AMPowerJ's Avatar
United_States
415
Rep
2,900
Posts

Drives: 2014 F10 M5
Join Date: Apr 2008
Location: Blythewood, SC

iTrader: (10)

Mine has done this now at least a half dozen times. My wife and I are calling it the 'M Cough'.
__________________

Current: 2014 F10 M5
Previous: 2015 F80 M3, 2013 E92 M3, 2013 F10 M5, 2009 E90 M3, 1998 E36 M3
Appreciate 0
      11-04-2014, 11:26 AM   #36
JoeFromPA
Colonel
1791
Rep
2,995
Posts

Drives: '15 AW M3 6MT Stripper
Join Date: Aug 2013
Location: SE PA

iTrader: (0)

So I remembered that I had a variation of this sound on one other car and wanted to share that: I had a car that everytime it hit 9 or 15mph (something like that) for the first time after a re-start did an ABS self-check.

And it made a .5 second grinding sound before going away.

Now I believe this is a diff noise, don't get me wrong, but I also wonder if BMW's "brake rotor wipe" tech that applies the pad to the rotor very lightly to wipe the rotor clean is also a factor in some of these noises....
__________________
AW/Carbonstructure 6MT 2015 M3 picked up 8/22/2014. Stripper except for adaptive suspension. Weighed at 3,450 pounds with 1/4 fuel. 70,000 miles as of February 2020.
Appreciate 0
      11-04-2014, 01:11 PM   #37
rkaregaran
New Member
1
Rep
25
Posts

Drives: '15 M4
Join Date: Jan 2007
Location: San Diego, CA, USA

iTrader: (0)

I just started to fiddle with the flimsy aluminum shield on my drivers side rear rotor, and it sounds just like it's where the sound would be coming from. Also heard some debris loosen up as I pulled and pushed gently. Hopefully that clears it up. This looks like a design flaw; that shield is garbage.
Appreciate 0
      11-04-2014, 01:37 PM   #38
SuspectisHatless
Private First Class
52
Rep
158
Posts

Drives: 2015 M3
Join Date: Jul 2014
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by ss134 View Post
The sound I heard sounded like my exhaust had fallen off and was being dragged under the car..........believe it or not it was small stones stuck in the heat shield.
Any chance someone could put together a DIY w/pictures?
Thanks
Appreciate 0
      11-04-2014, 01:45 PM   #39
Andrew115
Major
Andrew115's Avatar
327
Rep
1,450
Posts

Drives: Silver Bullet
Join Date: May 2013
Location: Charlotte NC

iTrader: (0)

I am not buying the stone in the heat shield theory. I am hearing it at least 2/3 times a week at very low speeds in my work parking garage. It's very annoying.
Appreciate 0
      11-04-2014, 02:09 PM   #40
Gstone
Lieutenant
142
Rep
555
Posts

Drives: '18 GT350, '15 M4 sold
Join Date: Sep 2014
Location: NY Burbs

iTrader: (0)

I'm also not sure about a stone. But I do think it is related to the aluminum brake shield/plate.

Could it be catching on the spinning wheel/tire or something at lower wheel spin?
Appreciate 0
      11-04-2014, 02:30 PM   #41
AMPowerJ
One mod leads to another ...
AMPowerJ's Avatar
United_States
415
Rep
2,900
Posts

Drives: 2014 F10 M5
Join Date: Apr 2008
Location: Blythewood, SC

iTrader: (10)

Quote:
Originally Posted by JoeFromPA View Post
So I remembered that I had a variation of this sound on one other car and wanted to share that: I had a car that everytime it hit 9 or 15mph (something like that) for the first time after a re-start did an ABS self-check.

And it made a .5 second grinding sound before going away.

Now I believe this is a diff noise, don't get me wrong, but I also wonder if BMW's "brake rotor wipe" tech that applies the pad to the rotor very lightly to wipe the rotor clean is also a factor in some of these noises....
Mine hasn't happened when it's wet or right after starting the car. It does seem to be at slow speeds however. It sounds like it is on the driver's side rear of the car. Not in the center or the right side.
__________________

Current: 2014 F10 M5
Previous: 2015 F80 M3, 2013 E92 M3, 2013 F10 M5, 2009 E90 M3, 1998 E36 M3
Appreciate 0
      11-04-2014, 03:12 PM   #42
Wah
IG@i.am.wah
Wah's Avatar
United_States
2779
Rep
3,815
Posts

Drives: M2 CS
Join Date: Jul 2009
Location: NJ

iTrader: (4)

Garage List
Drive on the shoulder where all the little rocks are, and you will get one stuck in there eventually. Then you will know it is a rock.
Appreciate 0
      11-04-2014, 03:48 PM   #43
bishop4142
Private First Class
bishop4142's Avatar
United_States
58
Rep
151
Posts

Drives: 2024 M4 Convertible
Join Date: May 2009
Location: FL

iTrader: (0)

Garage List
  [0.00]
I have 3500 miles and with I make a hard right a hear a almost scraping noise coming from the rear. Anything on this?

Thanks
Appreciate 0
      11-04-2014, 04:43 PM   #44
rkaregaran
New Member
1
Rep
25
Posts

Drives: '15 M4
Join Date: Jan 2007
Location: San Diego, CA, USA

iTrader: (0)

I tried moving it a bit, there doesn't seem to be anything lodged inbetween it and the rotor as far as I can tell. It really just feels like this thing is flimsy and has gotten slightly out of perfect alignment and now sometimes doesn't fully clear the rotor. I'm sure debris would make it even worse.

Anyone have any luck with BMW, yet? Can we just ask them to remove it altogether?
Appreciate 0
Post 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 -5. The time now is 06:25 AM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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