rear brake squeak

golf4501 · 04-21-2019, 06:06 PM

Just under 300 miles here and I noticed I'm getting squeak from the rear rotors. Has anybody else heard this? Thinking it might just be the brakes breaking in as I first noticed it after releasing the parking brake and backing out of my driveway. Today I'm hearing it when slowing down like it might be a hub or something. I'll probably just monitor it until I do my 1200 mile, but wanted to know if this was something common.

Thescout13 · 04-21-2019, 07:07 PM

Could be 1) normal (because big brakes squeak), 2) a rock stuck behind the brake shield, or 3) something else. 1200 mile service will be a good time to ask the dealer to take a look.

codean · 04-21-2019, 10:34 PM

Is the car kept outside? Do you live in a humid and or rainy climate? Does the noise go away after a few solid aggressive stops?

If so to any of these, probably completely normal.

detroitm2 · 04-21-2019, 10:42 PM

Quote:

Originally Posted by codean

Is the car kept outside? Do you live in a humid and or rainy climate? Does the noise go away after a few solid aggressive stops?

If so to any of these, probably completely normal.

Yeah, was gunna say this. Those rotors rust very easily. A few hard stops usually cleans them up real quick.

macbazzr · 05-23-2019, 08:16 PM

I'm getting it too. Started around 400 miles and still going strong at 550 miles. Gets louder not quieter so not rust or anything else like that. Of course i'll be mentioning it at the break-in service but seems odd to get this kind of squeal so early.

Tag · 05-23-2019, 09:13 PM

Bed them in with a bunch of high speed hard stops.

golf4501 · 05-23-2019, 09:18 PM

Quote:

Originally Posted by macbazzr

I'm getting it too. Started around 400 miles and still going strong at 550 miles. Gets louder not quieter so not rust or anything else like that. Of course i'll be mentioning it at the break-in service but seems odd to get this kind of squeal so early.

Mine went away and haven't returned. They weren't even present when i did my 1200 mile last week.

04-21-2019, 06:06 PM	#1
golf4501 Lieutenant 105 Rep 584 Posts Drives: 2020 M2C Join Date: Sep 2008 Location: chicagoland iTrader: (0) Garage List 2020 BMW M2C [0.00]	rear brake squeak Just under 300 miles here and I noticed I'm getting squeak from the rear rotors. Has anybody else heard this? Thinking it might just be the brakes breaking in as I first noticed it after releasing the parking brake and backing out of my driveway. Today I'm hearing it when slowing down like it might be a hub or something. I'll probably just monitor it until I do my 1200 mile, but wanted to know if this was something common.
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04-21-2019, 07:07 PM	#2
Thescout13 Brigadier General 4944 Rep 4,976 Posts Drives: '20 F80 M3CS, %E2%80%9818 GT3 Join Date: Nov 2013 Location: California iTrader: (0)	Could be 1) normal (because big brakes squeak), 2) a rock stuck behind the brake shield, or 3) something else. 1200 mile service will be a good time to ask the dealer to take a look. __________________ Wife's Car: 2020 X4M Competition, Alpine White on Black Alcantara and Biege Current Car: 2018 F80 M3CS, SMB, DCT, ZEC, MPE Recently Departed: 2020 F87 M2C, LBB, ZEC, 6MT (Euro Delivery Aug. 29, 2019, totaled by an idiot in a Camry who then ran from the scene) Wife's Prior Car: 2018 F80 M3, Yas Marina Blue, DCT, Black 19s, Carbon Structure Anthracite Cloth/Leather Combination, Driving Assistance Package (Euro Delivery Oct. 9, 2017)
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04-21-2019, 10:34 PM	#3
codean New Member 21 Rep 14 Posts Drives: 330xi Join Date: Jul 2014 Location: chicagoland iTrader: (0)	Is the car kept outside? Do you live in a humid and or rainy climate? Does the noise go away after a few solid aggressive stops? If so to any of these, probably completely normal.
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05-23-2019, 08:16 PM	#5
macbazzr New Member 2 Rep 8 Posts Drives: BMW M2C Join Date: Apr 2018 Location: Atlanta iTrader: (0)	I'm getting it too. Started around 400 miles and still going strong at 550 miles. Gets louder not quieter so not rust or anything else like that. Of course i'll be mentioning it at the break-in service but seems odd to get this kind of squeal so early.
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05-23-2019, 09:13 PM	#6
Tag this is the way 18115 Rep 8,509 Posts Drives: N-1 starfighter Join Date: Jan 2007 Location: Chicago iTrader: (3)	Bed them in with a bunch of high speed hard stops.
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