Bad Brake Squeak

serpentine · 11-26-2022, 12:56 PM

Any ideas how to handle? I’m 38k miles in but just had inspected and winter wheel swap and no mention of worn pads.

I’ll try to post a video but it’s embarrassingly loud when soft braking from 20mph to 5 or so. Only when the outside air cools down below 50.

RogueX7 · 11-26-2022, 02:11 PM

I have 1000 miles and the brakes always make a pretty loud noise but no squeak yet.

M brakes or regular?

serpentine · 11-26-2022, 09:17 PM

Quote:

Originally Posted by RogueX7

I have 1000 miles and the brakes always make a pretty loud noise but no squeak yet.

M brakes or regular?

M

sbkim · 11-29-2022, 09:08 AM

2021 M50i here with awful brake squeak while coming to stop. I am taking mine back to the dealer soon but first time around they told me brake pads are OK. Do the rotors need to be resurfaced?

BMW5and7 · 11-29-2022, 09:35 AM

2019 and 2022 both with M-Sport brakes. No squeaks at all, or noise. 45K miles on one of them. The 2019 is dead silent. The 2022 has a slight “pad grib” noise towards the last 4-6 inches when am coming to stop which is normal and can’t be heard from outside (only from inside with Radio off and no traffic around”

streborx · 11-29-2022, 09:39 AM

There are many complaints on one of the MB forums about squealing brakes on G63s, and the problem seems to be the pad to caliper interface, not pad to rotor.

Orient330iNYC · 11-29-2022, 11:09 AM

Quote:

Originally Posted by streborx

There are many complaints on one of the MB forums about squealing brakes on G63s, and the problem seems to be the pad to caliper interface, not pad to rotor.

the pads on most recent bmws with M sport brakes are adhesive bonded to the pistons to stop the squealing. wondering if that bond has failed.

from what i can gather its not regular VHB tape, not sure if it can be renewed, not sure where to source the vhb they use for the pads.

sbkim · 11-30-2022, 07:50 AM

Thanks for the info - would this be covered under warranty or considered as wear and tear?

Quote:

Originally Posted by Orient330iNYC

the pads on most recent bmws with M sport brakes are adhesive bonded to the pistons to stop the squealing. wondering if that bond has failed.

from what i can gather its not regular VHB tape, not sure if it can be renewed, not sure where to source the vhb they use for the pads.

Orient330iNYC · 11-30-2022, 07:56 AM

Quote:

Originally Posted by sbkim

Thanks for the info - would this be covered under warranty or considered as wear and tear?

not sure, its going to depend on the dealer and what stance they take. brake pads are a wear item, so i can see them going that way. but if the squealing is being caused by the pads no longer being bonded to the pistons, that seems to be a defect.

serpentine · 11-30-2022, 12:41 PM

Here's a video of mine.
I should have had them inspect when I had the winters thrown on. My fear is that they'll just tell me that new pads are required and I really didn't want to deal with that.

Is spraying with brake cleaner frowned upon?

https://youtu.be/57FVwz8UVHo

Orient330iNYC · 11-30-2022, 01:03 PM

Quote:

Originally Posted by serpentine

Here's a video of mine.
I should have had them inspect when I had the winters thrown on. My fear is that they'll just tell me that new pads are required and I really didn't want to deal with that.

Is spraying with brake cleaner frowned upon?

https://youtu.be/57FVwz8UVHo

TIS says to remove the adhesive from the piston with brake cleaner when replacing the pads, so my guess would be that it would break down the bond.
TIS also notes that once the pads are removed (bond broken) the pads need to be replaced.

serpentine · 12-01-2022, 07:30 AM

Quote:

Originally Posted by Orient330iNYC

TIS says to remove the adhesive from the piston with brake cleaner when replacing the pads, so my guess would be that it would break down the bond.
TIS also notes that once the pads are removed (bond broken) the pads need to be replaced.

Thank you

robkassab · 12-01-2022, 09:20 PM

Try Disc Brake Quiet spray on the backs of the pads.

x7bmw23 · 12-02-2022, 06:13 AM

Quote:

Originally Posted by serpentine

Here's a video of mine.
I should have had them inspect when I had the winters thrown on. My fear is that they'll just tell me that new pads are required and I really didn't want to deal with that.

Is spraying with brake cleaner frowned upon?

If I have this brake noise to look forward to , I'll be turning the X7 back in after lease instead of purchasing. That's embarrassing to drive a 100k vehicle and hv it sound like this and BMW to say it's normal. I've seen other post on this subject and that's what the BMW service techs state upon inspection.

Angelo_GraysonMiniBMW · 12-02-2022, 02:24 PM

Just curious but is it possible to use the standard non-sport X7 brakes from the 40i for those that don’t hot rod around smashing the brakes. Maybe another brake pad option is available?

Ace6180G07 · 12-02-2022, 02:41 PM

Quote:

Originally Posted by serpentine

Here's a video of mine.
I should have had them inspect when I had the winters thrown on. My fear is that they'll just tell me that new pads are required and I really didn't want to deal with that.

Is spraying with brake cleaner frowned upon?

https://youtu.be/57FVwz8UVHo

Wow! That’s more than the usual break squeal or squeak.. For that noise you must be metal to metal. If you Keep going like that you may need rotors by the time it’s addressed. You pull the wheel yet and take a look? If you pull the wheel you can look in on the side of the caliper and you can see the pad left on it.

Also I think the electronic pad level sensor is only on one of the inner pads on one side of the vehicle. (At least that’s how my MB GLS ). I’m assuming the X7 is the same way. So with that being said you could have A seized caliper on the side that does not have the sensor and the inner pad is toast. I haven’t pulled the wheel my my 23 X7 yet to see which one has the sensor. Few thousand miles more until a rotation then I will know.

But I wouldn’t let it go like that for long. If your metal to metal then the hot little metal pieces come out of there and can pit the finish on the wheels or worse the side of the vehicle.

If you’re in upstate NY come on over I’ll pull the wheel.

themama · 12-02-2022, 04:29 PM

did you confirm that there isn't any stone or something else between piston and rotor?
Also are you able to identify the wheel this squeal is coming from?

Saejin · 12-02-2022, 08:34 PM

You guys with brake issues should look into Ultimate Care+. It's $700.

Purchase BMW Ultimate Care+ to add:
Replacement of specific wear-and-tear items such as brake pads, wiper blades and manual transmission clutch (for model year 2017 vehicles and newer).
Ultimate Care+ is transferable to a subsequent owner, should you sell your vehicle.

serpentine · 12-02-2022, 10:31 PM

Quote:

Originally Posted by Ace6180G07

Wow! That’s more than the usual break squeal or squeak.. For that noise you must be metal to metal. If you Keep going like that you may need rotors by the time it’s addressed. You pull the wheel yet and take a look? If you pull the wheel you can look in on the side of the caliper and you can see the pad left on it.

Also I think the electronic pad level sensor is only on one of the inner pads on one side of the vehicle. (At least that’s how my MB GLS ). I’m assuming the X7 is the same way. So with that being said you could have A seized caliper on the side that does not have the sensor and the inner pad is toast. I haven’t pulled the wheel my my 23 X7 yet to see which one has the sensor. Few thousand miles more until a rotation then I will know.

But I wouldn’t let it go like that for long. If your metal to metal then the hot little metal pieces come out of there and can pit the finish on the wheels or worse the side of the vehicle.

If you’re in upstate NY come on over I’ll pull the wheel.

It only happens when temps drop. Noticed at the end of last winter and it then went away. For example, tomorrow is supposed to be high 50s. I won’t have an issue. Sunday morning back into low 30s I’ll hear it’ll be back.

Also no abnormal marks on my rotors. No gouging or anything.

Ace6180G07 · 12-03-2022, 03:19 AM

Quote:

Originally Posted by serpentine

It only happens when temps drop. Noticed at the end of last winter and it then went away. For example, tomorrow is supposed to be high 50s. I won’t have an issue. Sunday morning back into low 30s I’ll hear it’ll be back.

Also no abnormal marks on my rotors. No gouging or anything.

You look at the other side (inside/backside) of the rotors? Hard to see if the wheel is still on. I keep thinking you have an inner pad issue. Otherwise just take it into the shop. It’s not normal.

Ace6180G07 · 12-05-2022, 05:30 PM

Bump… did you ever figure this out?

JoeyDDD0919 · 12-06-2022, 11:41 AM

Quote:

Originally Posted by serpentine

Any ideas how to handle? I’m 38k miles in but just had inspected and winter wheel swap and no mention of worn pads.

I’ll try to post a video but it’s embarrassingly loud when soft braking from 20mph to 5 or so. Only when the outside air cools down below 50.

I think this is fairly common in German cars. My X7 and my VW Passat both make a squeak noise when braking at a low speed.

If your brakes are checked by a technician and they found they are fine I won't worry about this too much..

11-26-2022, 12:56 PM	#1
serpentine Second Lieutenant 164 Rep 285 Posts Drives: X3M Join Date: Sep 2020 Location: illadelphia iTrader: (0)	Bad Brake Squeak Any ideas how to handle? I’m 38k miles in but just had inspected and winter wheel swap and no mention of worn pads. I’ll try to post a video but it’s embarrassingly loud when soft braking from 20mph to 5 or so. Only when the outside air cools down below 50. Last edited by serpentine; 11-26-2022 at 02:08 PM..
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11-26-2022, 02:11 PM	#2
RogueX7 Enlisted Member 17 Rep 32 Posts Drives: BMW X7 Join Date: Oct 2022 Location: DFW iTrader: (0)	I have 1000 miles and the brakes always make a pretty loud noise but no squeak yet. M brakes or regular?
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11-29-2022, 09:08 AM	#4
sbkim Lieutenant 59 Rep 529 Posts Drives: 2021 X7 M50i Join Date: May 2006 Location: Chicago Burbs iTrader: (0)	2021 M50i here with awful brake squeak while coming to stop. I am taking mine back to the dealer soon but first time around they told me brake pads are OK. Do the rotors need to be resurfaced?
	Appreciate 1 gypsy3233.00 Quote

11-29-2022, 09:35 AM	#5
BMW5and7 Lieutenant Colonel 1067 Rep 1,518 Posts Drives: X7;X5;S-Class;Navigator Join Date: Jul 2022 Location: U.S. and Germany iTrader: (0)	2019 and 2022 both with M-Sport brakes. No squeaks at all, or noise. 45K miles on one of them. The 2019 is dead silent. The 2022 has a slight “pad grib” noise towards the last 4-6 inches when am coming to stop which is normal and can’t be heard from outside (only from inside with Radio off and no traffic around”
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11-29-2022, 09:39 AM	#6
streborx Major 655 Rep 1,085 Posts Drives: 2022 BMW X7 M50i Join Date: Jul 2022 Location: Colorado iTrader: (0)	There are many complaints on one of the MB forums about squealing brakes on G63s, and the problem seems to be the pad to caliper interface, not pad to rotor.
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11-30-2022, 12:41 PM	#10
serpentine Second Lieutenant 164 Rep 285 Posts Drives: X3M Join Date: Sep 2020 Location: illadelphia iTrader: (0)	Here's a video of mine. I should have had them inspect when I had the winters thrown on. My fear is that they'll just tell me that new pads are required and I really didn't want to deal with that. Is spraying with brake cleaner frowned upon? https://youtu.be/57FVwz8UVHo Last edited by serpentine; 11-30-2022 at 12:47 PM..
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12-01-2022, 09:20 PM	#13
robkassab Rob 39 Rep 85 Posts Drives: 2023 BMW X7 xDrive40i Join Date: Jul 2013 Location: Boca Raton, FL iTrader: (0)	Try Disc Brake Quiet spray on the backs of the pads.
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12-02-2022, 02:24 PM	#15
Angelo_GraysonMiniBMW Lieutenant 229 Rep 425 Posts Drives: 2019 BMW X3,2020 Land Cruiser Join Date: Sep 2021 Location: Knoxville,TN iTrader: (0)	Just curious but is it possible to use the standard non-sport X7 brakes from the 40i for those that don’t hot rod around smashing the brakes. Maybe another brake pad option is available?
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12-02-2022, 04:29 PM	#17
themama Private First Class 73 Rep 199 Posts Drives: 2022 BMW X7, 2016 BMW 535xi Join Date: Sep 2022 Location: Va iTrader: (0)	did you confirm that there isn't any stone or something else between piston and rotor? Also are you able to identify the wheel this squeal is coming from?
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12-02-2022, 08:34 PM	#18
Saejin Captain 731 Rep 988 Posts Drives: None Join Date: Apr 2019 Location: Nowhere iTrader: (0)	You guys with brake issues should look into Ultimate Care+. It's $700. Purchase BMW Ultimate Care+ to add: Replacement of specific wear-and-tear items such as brake pads, wiper blades and manual transmission clutch (for model year 2017 vehicles and newer). Ultimate Care+ is transferable to a subsequent owner, should you sell your vehicle.
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12-05-2022, 05:30 PM	#21
Ace6180G07 First Lieutenant 264 Rep 385 Posts Drives: 2022 X7 M50i / 2024 X5 40i Join Date: Sep 2022 Location: Upstate NY iTrader: (1)	Bump… did you ever figure this out?
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