[ResIpsaLoquitur]

Originally Posted by Maverik259

My ACG pads have been squeaking like crazy now since winter started. Yay me! Just gave her a thorough first wash of spring. Helped a bit, but the squeal is just "less" which i full expect to get worse now. Ugh.

Have about 10k miles on them.

Glad to hear an opinion on the other side regarding ACG pads. It seems like for some they work perfectly to reduce/eliminate squeal, but the forum has showed me that is not consistently the case. I'm sorry they didn't work for you. I know how frustrating it is!

[ResIpsaLoquitur]

Originally Posted by Holset

This!

My standard compound brakes has been dead quiet and i drive my car in the winter to.

For the Carbon ceramics it's normal for them to make some noise when driven normally but they probably quiet down to if you do some hard braking.

Just to clarify, are you implying that because you do as micvite suggested, they don't squeal in the long term?

[ResIpsaLoquitur]

Originally Posted by snowbimmer

I've tried the panic stop braking many times, both cars. Still have squeaky brakes.

I realize CCBs can still make some noise - mainly want to be done with brake dust. Ay yi yi.

But, that's a whole 'nother thread.....again.

Thanks for letting me know about your experience! The brake dust is of course annoying, but for me the squeal is the worst part. The car gets a hand wash once a week anyways, so I don't ever have too much brake dust build up. It's something that I can alleviate easily, i.e. by giving it a good wash. I wish that trick worked for the squeal. Others on the forum have said it has, but it didn't work for me either.

[ResIpsaLoquitur]

Originally Posted by Can-am

Mine (CCB's) are dead quiet since beginning of ownership.

I couldn't stand the brake dust and the squeaky brakes on my previous F85 X5M.

That's so great to hear! How many miles have you put on them?

[ResIpsaLoquitur]

Originally Posted by Ron1n

Have M Perf Brakes on mine (2021), and they definitely squeak when warm when brake pressure is applied at low speeds.

Thank you for the insight. It seems as though this issue definitely carries over from pre-LCI to LCI models. I'll manage my expectations accordingly.

[ChalkyM5]

Originally Posted by AAM5

The truth is that I regularly drive the car hard. I have been told (and tried) hundreds of times about the panic braking "solution." Admittedly, it does work temporarily; usually for the rest of my drive if it's a relatively short one. But as soon as I shut off the car (even if for a minute), and turn it back on, the squeal comes back. I smash the brakes, repeating the process, and then I am stuck in that continuous cycle. So frustrating.

I'm in the same exact cycle with my 19 with CCBs. Although, there are some random trips where they just decide to not make a single noise for no apparent reason

[josec70]

I originally had the ACG (Porterfield Pads) on my 19' M5C and they were great for about 2 years. After that they began to make noise and it never went away. I then tried EBC Red Stuff pads and they were very good with little to no dust and zero noise. My brother now owns that car and says it has made zero noise after about 5k miles. Current 22' M5C has CCB's so we'll see how it goes. I had CCB's on my 1st F10 M5 and they were great.

[ResIpsaLoquitur]

Originally Posted by ChalkyM5

I'm in the same exact cycle with my 19 with CCBs. Although, there are some random trips where they just decide to not make a single noise for no apparent reason

It's very, very frustrating. Sorry you're stuck in this cycle as well. I'd be livid with still having the issue after spending an additional $8500. I've heard varying situations with some CCB owners saying that they don't hear a thing because they have CCBs over compound. As your experience proves, this isn't always the case.

Thanks for your insight!

[ResIpsaLoquitur]

Originally Posted by josec70

I originally had the ACG (Porterfield Pads) on my 19' M5C and they were great for about 2 years. After that they began to make noise and it never went away. I then tried EBC Red Stuff pads and they were very good with little to no dust and zero noise. My brother now owns that car and says it has made zero noise after about 5k miles. Current 22' M5C has CCB's so we'll see how it goes. I had CCB's on my 1st F10 M5 and they were great.

Thanks for the input, Jose! If I can get two years of silence, I'd be ecstatic! I will definitely check out those EBC pads!

[Holset]

Originally Posted by snowbimmer

I've tried the panic stop braking many times, both cars. Still have squeaky brakes.

I realize CCBs can still make some noise - mainly want to be done with brake dust. Ay yi yi.

But, that's a whole 'nother thread.....again.

All right you can take out the pads and clean them and also clean the inside of the calipers and put it back together.
If that doesn't work you can try an old trick by adding a little copper grease on the pads were they contact the calipers i think aluminum grease works too.

I learned a long time ago that the pads can vibrate in the calipers and that can make a squeaky noise ,the grease can help with that.

[ResIpsaLoquitur]

Originally Posted by Holset

All right you can take out the pads and clean them and also clean the inside of the calipers and put it back together.
If that doesn't work you can try an old trick by adding a little copper grease on the pads were they contact the calipers i think aluminum grease works too.

I learned a long time ago that the pads can vibrate in the calipers and that can make a squeaky noise ,the grease can help with that.

I've tried cleaning the pads and inside the calipers, but it was only a temporary solution. I would say it lasted about two weeks.

I've also tried other forms of lubrication, but definitely not copper grease. I think that's my next step!

Thank you very much for the tip!

[snowbimmer]

Originally Posted by Holset

All right you can take out the pads and clean them and also clean the inside of the calipers and put it back together.
If that doesn't work you can try an old trick by adding a little copper grease on the pads were they contact the calipers i think aluminum grease works too.

I learned a long time ago that the pads can vibrate in the calipers and that can make a squeaky noise ,the grease can help with that.

So..................I guess you're sayin' my brakes gonna keep squeakin'

[Holset]

Originally Posted by AAM5

I've tried cleaning the pads and inside the calipers, but it was only a temporary solution. I would say it lasted about two weeks.

I've also tried other forms of lubrication, but definitely not copper grease. I think that's my next step!

Thank you very much for the tip!

No problem!
Good luck!

[jnotrom711]

Originally Posted by micvite

Your main issue is you don't drive the car hard enough, the squeeling is due to the pads glazing, you get rid of the issue by doing 3-4 stops from 100-20 in quick succession get some heat in those pads. Most if not all performance cars suffer from this. My old f10 never squeeked but that was because I regularly drove the car over 100 and mashed the brakes until abs almost kicked in every time I used them. If you drive the car like a commuter car your brakes are gonna squeel and that's that. If you don't believe try it next time, don't be gentle on the brakes really put your foot in it and I'll bet you they won't squeel after a few stops lol

My f10 squealed, my f90 squeals the exact same, maybe worse.

I drive hard, over 100 a lot. I've done the brake mashing many many times probably over 100 times. It works for maybe 5-10 minutes after doing it. It does nothing long term.

This isn't about glazing, it's not about driving like a commuter. I've owned several other cars with similar performance brakes. AMG's, Lexus IS-F (2), 911 Turbo S. None of those brakes squealed, ever. I've driven many cars with CCBs as well, those squeak sometimes, but its a different squeal, not as loud or as frequent as the BMW steel brakes. And once warm it goes away on CCB. It seems to get worse as the brakes warm up on my f90 comp.

This is a BMW issue. Not a driver issue. Period. It's embarrassing, the " its normal" "drive harder" lines are BS.

It's a flaw in the brake design, and BMW doesn't care to fix it, or the fix isnt worth it to them for unknown reasons. End of story. $130k car that sounds like a rental box van from U Haul, it's embarrassing, frankly unacceptable. Quite honestly its the only thing I can't stand about this car. Thats why I make the dealer look at the brakes literally every time i'm in there. I know they won't do a darn thing, but I bring it up every time in hopes one day they'll do something. The more they waste time inspecting brakes, and paying the dealer for warranty work or labor to check them over, hopefully they do something about it.

[Holset]

Originally Posted by snowbimmer

So..................I guess you're sayin' my brakes gonna keep squeakin'

I would tried the copper/aluminum grease trick if nothing else worked.

I also remember back in the day there was anti squeal shim's you could put in between the pads and calipers so that could work too.

[ResIpsaLoquitur]

Originally Posted by jnotrom711

My f10 squealed, my f90 squeals the exact same, maybe worse.

I drive hard, over 100 a lot. I've done the brake mashing many many times probably over 100 times. It works for maybe 5-10 minutes after doing it. It does nothing long term.

This isn't about glazing, it's not about driving like a commuter. I've owned several other cars with similar performance brakes. AMG's, Lexus IS-F (2), 911 Turbo S. None of those brakes squealed, ever. I've driven many cars with CCBs as well, those squeak sometimes, but its a different squeal, not as loud or as frequent as the BMW steel brakes. And once warm it goes away on CCB. It seems to get worse as the brakes warm up on my f90 comp.

This is a BMW issue. Not a driver issue. Period. It's embarrassing, the " its normal" "drive harder" lines are BS.

It's a flaw in the brake design, and BMW doesn't care to fix it, or the fix isnt worth it to them for unknown reasons. End of story. $130k car that sounds like a rental box van from U Haul, it's embarrassing, frankly unacceptable. Quite honestly its the only thing I can't stand about this car. Thats why I make the dealer look at the brakes literally every time i'm in there. I know they won't do a darn thing, but I bring it up every time in hopes one day they'll do something. The more they waste time inspecting brakes, and paying the dealer for warranty work or labor to check them over, hopefully they do something about it.

Thank you for your input!

I think you summed it up best here: "This is a BMW issue. Not a driver issue. Period. It's embarrassing, the " its normal" "drive harder" lines are BS."

I've also tried the brake pedal mashing a few hundred times over the 2.5 years I've had this car. And I drive the car hard as well. I've been told the lines you mentioned time and time again.

I also sure your sentiments regarding other German performance cars with performance (albeit not CCB) brakes (E63S, RS6, 911 C4S, etc.) Those vehicles have never, ever once presented this issue during my use of them.

With all this being said, I still ordered a new M5C with the compound brakes again. I am going to hound my dealer every single chance I get in the hopes of effecting some change.

Thanks again!

[ResIpsaLoquitur]

Originally Posted by snowbimmer

So..................I guess you're sayin' my brakes gonna keep squeakin'

I think that's a fair conclusion

[micvite]

Originally Posted by jnotrom711

My f10 squealed, my f90 squeals the exact same, maybe worse.

I drive hard, over 100 a lot. I've done the brake mashing many many times probably over 100 times. It works for maybe 5-10 minutes after doing it. It does nothing long term.

This isn't about glazing, it's not about driving like a commuter. I've owned several other cars with similar performance brakes. AMG's, Lexus IS-F (2), 911 Turbo S. None of those brakes squealed, ever. I've driven many cars with CCBs as well, those squeak sometimes, but its a different squeal, not as loud or as frequent as the BMW steel brakes. And once warm it goes away on CCB. It seems to get worse as the brakes warm up on my f90 comp.

This is a BMW issue. Not a driver issue. Period. It's embarrassing, the " its normal" "drive harder" lines are BS.

It's a flaw in the brake design, and BMW doesn't care to fix it, or the fix isnt worth it to them for unknown reasons. End of story. $130k car that sounds like a rental box van from U Haul, it's embarrassing, frankly unacceptable. Quite honestly its the only thing I can't stand about this car. Thats why I make the dealer look at the brakes literally every time i'm in there. I know they won't do a darn thing, but I bring it up every time in hopes one day they'll do something. The more they waste time inspecting brakes, and paying the dealer for warranty work or labor to check them over, hopefully they do something about it.

"I drive hard over 100 a lot" but how often do you mash the brakes? I do it every time I come to a stop, aka no squeel, you just admitted you DON'T do that. I never said it does anything for long term, if you brake like your grandma's in the car afterwards of course it's gonna start squeeling again lol. You're talking about amgs? my e55 squeeled like a pig, the e63 from the next gen did the same, sl63? what do you think? squeely boy, the cars come with brakes that are meant to stop it from high rates of speed quickly, not for you to put around town in and that's the truth. use them correctly and they'll reward you, if not they'll squeel.

it's literally the same with the carbon ceramics, they squeel all day until they're warmed up, is that a problem for your 130k car? No, that's how they're DESIGNED! I've had an e63 m6 no squeel, f10 nothing, I'm sure my f90 when I get it will be the same because I drive the cars as if they were on a track, the brakes last maybe 10-15k miles if I'm lucky, I'm willing to bet yours last 30-40

[Maverik259]

Originally Posted by AAM5

I will probably go CCB on my next vehicle. While mine is a commuter, I do drive it hard while "commuting" lol. Did you squeal just stop on it's own when it stopped?

100% agree

[Maverik259]

Originally Posted by jnotrom711

My f10 squealed, my f90 squeals the exact same, maybe worse.

I drive hard, over 100 a lot. I've done the brake mashing many many times probably over 100 times. It works for maybe 5-10 minutes after doing it. It does nothing long term.

This isn't about glazing, it's not about driving like a commuter. I've owned several other cars with similar performance brakes. AMG's, Lexus IS-F (2), 911 Turbo S. None of those brakes squealed, ever. I've driven many cars with CCBs as well, those squeak sometimes, but its a different squeal, not as loud or as frequent as the BMW steel brakes. And once warm it goes away on CCB. It seems to get worse as the brakes warm up on my f90 comp.

This is a BMW issue. Not a driver issue. Period. It's embarrassing, the " its normal" "drive harder" lines are BS.

It's a flaw in the brake design, and BMW doesn't care to fix it, or the fix isnt worth it to them for unknown reasons. End of story. $130k car that sounds like a rental box van from U Haul, it's embarrassing, frankly unacceptable. Quite honestly its the only thing I can't stand about this car. Thats why I make the dealer look at the brakes literally every time i'm in there. I know they won't do a darn thing, but I bring it up every time in hopes one day they'll do something. The more they waste time inspecting brakes, and paying the dealer for warranty work or labor to check them over, hopefully they do something about it.

I never had squealing issues in my AMg 6/4. I ran them with oem drilled rotors and aftermarket racing brake 2 piece slotted rotors with no squeaking either. Ran ceramic pads on both too. Never had squealing on my X5 with normal breaks. Only ever had squealing with my M5 rotors and calipers.

[Lee1224]

Originally Posted by AAM5

I've got a question for any owners that went from a pre-LCI F90 to a LCI F90 that had compound brakes on their previous car and have them on their new one.

Were you one of the many owners on the 10 different threads on this subject that had the infamous brake squeal issues and then didn't have the issue on your new M5?

As I mentioned, I know there are numerous threads regarding break squeal, but I didn't come across any comments on this specific situation.

I tried allllllll of the "solutions" other members have posted about. None of them worked for me. My SA completed two free "complete brake system" lubrications to appease me (which would have been ~$600 each). This caused its stop for about two weeks each time, and then it came right back. Which, in all fairness, is exactly what my SA said would happen. Still took him a bottle of tequila as thank you.

Please don't tell me "that's the way they are," "if you don't want break squeal, don't get an M car," etc. I know all that. Have heard it a hundred times already. That's why I bought another one still.

Anyone had this problem and then noticed it was alleviated or didn't have it on their new car? I'm really hoping I won't have this on the new car. I know "they're supposed to be this way" and all that noise, but buying a $122k car and then sounding like a 30 year old school bus is really frustrating.

My 2018 base M5 brake squeal really bad. I replaced them with Porter pads….solved squeal but Porter pads rattled when car go over rough surface. How do I know it was the new pads rattling? I had original pads put back when I sold car and no more rattle. Perhaps an isolated incident, most members here had good luck with Porter.

I now have a 2021 M5 comp and the brake have never squealed once. So either BMW did something with pads or it’s just hit and miss.

[jnotrom711]

Originally Posted by micvite

"I drive hard over 100 a lot" but how often do you mash the brakes? I do it every time I come to a stop, aka no squeel, you just admitted you DON'T do that. I never said it does anything for long term, if you brake like your grandma's in the car afterwards of course it's gonna start squeeling again lol. You're talking about amgs? my e55 squeeled like a pig, the e63 from the next gen did the same, sl63? what do you think? squeely boy, the cars come with brakes that are meant to stop it from high rates of speed quickly, not for you to put around town in and that's the truth. use them correctly and they'll reward you, if not they'll squeel.

it's literally the same with the carbon ceramics, they squeel all day until they're warmed up, is that a problem for your 130k car? No, that's how they're DESIGNED! I've had an e63 m6 no squeel, f10 nothing, I'm sure my f90 when I get it will be the same because I drive the cars as if they were on a track, the brakes last maybe 10-15k miles if I'm lucky, I'm willing to bet yours last 30-40

I literally wrote, I've done the brake mashing nonsense 100s of times. It does nothing, except for that few minute period right after.

I admitted nothing. I said specifically I drive hard and mash the brakes often.

With that said... You're telling me every time you drive your car, even in traffic, coming up to a stop light, in a parking lot, driving in to a drive through, pulling into the dealer service dept., you come to a screeching halt, nearly getting the ABS to kick in? No chance. I don't buy that, but nice try. There is zero chance you literally slam the brakes every time you slow down or stop... And if so, must be a real treat riding in the car with you, and your chiropractor must be loaded from all your neck and back adjustments. Come on man. Im not talking about spirted driving coming down from speed hard. Im talking about, you know those few and far between times, when i'm parking in my garage and don't want to blast through the back wall, or getting my coffee in the drive through and don't want to nail the car in front of me , or miss the pick up window, or pulling up to a valet at a nice restaurant, not wanting to kill the valet kid.... Sure they don't squeak going from 100mph to zero as hard as possible. But there is no chance thats the only driving you do.

Fully aware about carbon ceramics, and I wrote they squeak until warm. Then stops or quiets down significantly. The steel BMW brakes almost get worse when warm. I Didn't own it, but drove an F430 for months, and was nothing like the f90 squeak.

And yes, my 911 Turbo S didnt squeak, my AMG GT didnt squeak, my c63 didn't squeak, and long time ago had 2 Lexus IS-Fs, neither squeaked. Ive owned performance cars for many many years. The only 2 with this issue was my f10, and f90. I drove those hard, and not hard as well.

You wrote in the first paragraph "my e55 squeeled like a pig, the e63 from the next gen did the same, sl63? what do you think? squeely boy"..... Then not 3-4 sentences later "I've had an e63 m6 no squeel, f10 nothing", which is it? They squeal or they dont? Confused.

So no, it's not normal for performance brakes. Its only normal for BMW STEEL performance brakes. They put ass massagers, air conditioning, self driving features, nice sound system, leather, all these nice creature comforts because they demand people drive around a race track 24-7? Nah, it's made to drive as a commuter, just as much a performance car. Save it man. No one here buying what you selling. Especially since you don't even own an F90. And I dont know exactly how long they last, 10, 20, 30k miles? Dont care. The brakes are free for me to replace, I could care less how long they last.

So yes it is a problem for me and everyone else who owns an f90 with squealing's $130K car, except yours. Because you don't own one. And No, its not how its designed. It's a design FLAW. In no way does BMW design brakes on a luxury performance car to squeak on purpose. IF this is the case why put sound deadening material or AC or a radio in the car? Why put 1000s of other features in the car, if BMW intended it to only be on a track? I haven't looked, but I'll bet there is verbiage in the owners manual specifically talking about track use. (not sure) but wouldn't be surprised if there was some warranty voiding or issues they would claim from track driving. So no it wasn't designed to be driven from 0-100 and back to 0 as fast as possible, everytime you drive the car. Theres even a BMW video floating around this forum where they specifically state if the brakes squeak for extended period of time it's not normal. Specifically after washing the car I believe you can expect them to squeak but once warm or dry, they shouldn't. and thats the issue. They squeak warm, hot, cold, wet, dry, on fire, frozen, they squeak. Unfortunately BMW couldn't care less to fix it.

Out of curiosity though, you said "use them correctly and they'll reward you, if not they'll squeel"... Am I reading this correctly? LOL. Interesting comment. What does that even mean. "use my brakes correctly", you mean like slow my car down and get it to stop? Isn't that what they're for? And assuming I use them correctly which apparently is slamming on them every time I come to a stop, what is the reward? They don't squeak? Because thats not true either. They still squeel LOL.

Save it, you seem to want to counter and argue nearly every person on this forum and preach your knowledge yet don't own an F90. And a lot of the stuff you say is dead wrong.

Better luck next time.