High Pitch Brake Squeal

BimmerNC413 · 11-29-2022, 03:28 PM

Hi Everyone -- took delivery of my 2023 M3 Comp on 11/19. Haven't had much of an opportunity to drive it until this week.

So far, I've put about 100 miles on it and I've noticed a very high-pitched squeal whenever I brake. Thought maybe things just needed to break-in, but I would have thought 100 miles would have corrected anything like that.

Curious if anyone else has experienced the same this early in ownership? If so, what was the issue?

forcefed · 11-29-2022, 03:32 PM

Try doing some hard braking from around 50-5mph a few times and see if it goes away.

M4ord · 11-29-2022, 03:32 PM

In certain braking situations, the perforated brake discs can emit functional noises. However, functional noises have no effect on the performance and operational reliability of the brake. - p 306 Manual

Totally normal, and honestly never goes away.

ominousM4 · 11-29-2022, 03:36 PM

It will happen occasionally. Slightly embarrassing, but not a big deal.

GixY2K · 11-29-2022, 03:59 PM

Normal for your mileage. It'll go away once brakes are broken in.

Bl0ck · 11-29-2022, 05:46 PM

I am at 1000 and still have squeal 🤷🏻

Young04 · 11-29-2022, 05:50 PM

It may go away, it may not. My X3MC was quiet after about 1000 miles. I have about 7K miles on my G83 and the brakes make all sorts of squeals and squeaks. Doesn't bother me that much in the winter with the top up but in the summer with the top down it is quite annoying.

Dr.Deep · 11-29-2022, 06:16 PM

Absolutely normal, happens on every M generation, unfortunately more, uglier and louder noise on the G8X due to the compound used.

Some harder braking will make them quiet for a while, but some repeated lighter braking in city will bring back the noise. There are tons of posts here about that…

Only solution may be to switch to some other pads, but even then you still may get noise after a while as some have reported.

I have almost 30k miles now and it's coming and going as described above.

BimmerNC413 · 11-29-2022, 07:20 PM

Quote:

Originally Posted by ominousM4

It will happen occasionally. Slightly embarrassing, but not a big deal.

Yes, it’s been turning some heads, but for the wrong reasons!

TrackSpecM3 · 11-29-2022, 08:01 PM

I feel like this is normal for all these newer cars with perforated discs and semi metallic pads

vbb · 11-29-2022, 08:30 PM

8600 miles and I still have occasional squeal under low speed braking. No squeal at all when I'm firm on thr brakes, but you have to balance that against a jarring stop.

Gasper20 · 12-01-2022, 09:32 PM

I was just going to post about this. I thought there was something wrong with my brakes and asked them at my recent break-in service and they told me it's normal for an M car to make those break noises. I notice the high pitch squeaking noise mainly when I break slowly as opposed to a harder stop. It's annoying but hopefully it'll lessen as time goes on.

Limegrntaln · 12-02-2022, 04:59 AM

mike@x-ph.com · 12-02-2022, 08:34 AM

I switched to EBC yellow pads, and it fixed it.

11-29-2022, 03:28 PM	#1
BimmerNC413 Second Lieutenant 383 Rep 282 Posts Drives: 2022 X7, 2021 X5 Join Date: Jul 2022 Location: Charlotte, NC iTrader: (0) Garage List 2021 BMW X5 [0.00] 2022 BMW x7 [0.00]	High Pitch Brake Squeal Hi Everyone -- took delivery of my 2023 M3 Comp on 11/19. Haven't had much of an opportunity to drive it until this week. So far, I've put about 100 miles on it and I've noticed a very high-pitched squeal whenever I brake. Thought maybe things just needed to break-in, but I would have thought 100 miles would have corrected anything like that. Curious if anyone else has experienced the same this early in ownership? If so, what was the issue?
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11-29-2022, 03:32 PM	#2
forcefed Lieutenant Colonel 2533 Rep 1,901 Posts Drives: . Join Date: Sep 2021 Location: Toronto iTrader: (0)	Try doing some hard braking from around 50-5mph a few times and see if it goes away. __________________ 2023 m3 xdrive For sale: M3 Eibach pro kit springs, M-view module, csl gloss black grill with acc, gloss black lip
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11-29-2022, 03:32 PM	#3
M4ord First Lieutenant 777 Rep 359 Posts Drives: 2022 M4 Convertible Join Date: Jun 2022 Location: DC Metro iTrader: (0) Garage List 2022 M4 Convertible [0.00]	In certain braking situations, the perforated brake discs can emit functional noises. However, functional noises have no effect on the performance and operational reliability of the brake. - p 306 Manual Totally normal, and honestly never goes away.
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11-29-2022, 03:36 PM	#4
ominousM4 Enlisted Member 31 Rep 40 Posts Drives: 2023 M4 Comp Xdrive Join Date: Sep 2022 Location: KC iTrader: (0)	It will happen occasionally. Slightly embarrassing, but not a big deal.
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11-29-2022, 03:59 PM	#5
GixY2K Lieutenant 516 Rep 570 Posts Drives: '19 GLA45AMG(his) / '21 X3M40i Join Date: Sep 2021 Location: Colorado Springs, CO iTrader: (0)	Normal for your mileage. It'll go away once brakes are broken in. __________________ Currently: '19 GLA45AMG grey (his) & '21 X3M40i DGM (hers) w/ JB4@Map1 Previous cars: 2022 M4 xDrive in Mexico Blue with Silverstone/Black interior 2014 BE GTR FBO/e85
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11-29-2022, 05:46 PM	#6
Bl0ck Gray on Gray 101 Rep 189 Posts Drives: 2023 M3CX Join Date: Aug 2011 Location: South Florida iTrader: (0)	I am at 1000 and still have squeal 🤷🏻 __________________ 2023 M3CX
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11-29-2022, 05:50 PM	#7
Young04 Captain 679 Rep 853 Posts Drives: iX, i4 and 392 Wrangler Join Date: Jul 2019 Location: Massachusetts iTrader: (0)	It may go away, it may not. My X3MC was quiet after about 1000 miles. I have about 7K miles on my G83 and the brakes make all sorts of squeals and squeaks. Doesn't bother me that much in the winter with the top up but in the summer with the top down it is quite annoying.
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11-29-2022, 06:16 PM	#8
Dr.Deep Captain 1827 Rep 830 Posts Drives: M4 Competition Join Date: Aug 2017 Location: Alps iTrader: (0)	Absolutely normal, happens on every M generation, unfortunately more, uglier and louder noise on the G8X due to the compound used. Some harder braking will make them quiet for a while, but some repeated lighter braking in city will bring back the noise. There are tons of posts here about that… Only solution may be to switch to some other pads, but even then you still may get noise after a while as some have reported. I have almost 30k miles now and it's coming and going as described above.
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11-29-2022, 08:01 PM	#10
TrackSpecM3 Enlisted Member 27 Rep 36 Posts Drives: BMW M3 Join Date: Nov 2022 Location: New Jersey iTrader: (1)	I feel like this is normal for all these newer cars with perforated discs and semi metallic pads
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11-29-2022, 08:30 PM	#11
vbb Captain 1744 Rep 924 Posts Drives: 2022 M4 manual Join Date: Jul 2007 Location: present iTrader: (4)	8600 miles and I still have occasional squeal under low speed braking. No squeal at all when I'm firm on thr brakes, but you have to balance that against a jarring stop.
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12-01-2022, 09:32 PM	#12
Gasper20 Private 50 Rep 51 Posts Drives: G82 Join Date: Dec 2021 Location: TX iTrader: (0)	I was just going to post about this. I thought there was something wrong with my brakes and asked them at my recent break-in service and they told me it's normal for an M car to make those break noises. I notice the high pitch squeaking noise mainly when I break slowly as opposed to a harder stop. It's annoying but hopefully it'll lessen as time goes on.
	Appreciate 0 Quote

12-02-2022, 04:59 AM	#13
Limegrntaln Major General 13396 Rep 6,927 Posts Drives: 2022 DG/BLk xDrive M4C Wk 34 Join Date: Mar 2008 Location: Sacramento Area iTrader: (3) Garage List 2022 G82 M4 Competi ... [9.23]	I seem to recall hearing something about it. I'll link you to a post. https://g80.bimmerpost.com/forums/sh....php?t=1819659 https://g80.bimmerpost.com/forums/sh....php?t=1899653 https://g80.bimmerpost.com/forums/sh....php?t=1884004 https://g80.bimmerpost.com/forums/sh....php?t=1857757 https://g80.bimmerpost.com/forums/sh....php?t=1921836 https://g80.bimmerpost.com/forums/sh....php?t=1880500 https://g80.bimmerpost.com/forums/sh....php?t=1864873 https://g80.bimmerpost.com/forums/sh....php?t=1951416 https://x3.xbimmers.com/forums/showthread.php?t=647645 https://g80.bimmerpost.com/forums/sh....php?t=1826465 https://g80.bimmerpost.com/forums/sh....php?t=1873108 https://g80.bimmerpost.com/forums/sh....php?t=1951702 https://g80.bimmerpost.com/forums/sh....php?t=1879876 https://g80.bimmerpost.com/forums/sh...1902502&page=2 https://g80.bimmerpost.com/forums/sh....php?t=1828747 https://g80.bimmerpost.com/forums/sh....php?t=1900018 https://g80.bimmerpost.com/forums/sh....php?t=1913392 https://g80.bimmerpost.com/forums/sh....php?t=1889441 https://x3.xbimmers.com/forums/showthread.php?t=496409 https://www.m3post.com/forums/showthread.php?t=446376 https://g80.bimmerpost.com/forums/sh....php?t=1820591 https://www.6post.com/forums/showthread.php?t=1499385 https://www.m3post.com/forums/showthread.php?t=885076 https://g80.bimmerpost.com/forums/sh....php?t=1930546 __________________ 2022 DravitGrau /Black Full Merino M4 Competition M xDrive / Production Week 34/ Delivered 10/19/21/ IG: dravit_m4_comp YT: G Dubyou
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12-02-2022, 08:34 AM	#14
mike@x-ph.com BimmerPost Supporting Vendor 24055 Rep 190,575 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	I switched to EBC yellow pads, and it fixed it. __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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