03-29-2022, 01:14 PM | #23 |
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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!
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03-29-2022, 01:16 PM | #24 | ||
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03-29-2022, 01:19 PM | #25 |
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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.
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03-29-2022, 01:21 PM | #26 |
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That's so great to hear! How many miles have you put on them?
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03-29-2022, 01:26 PM | #27 |
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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.
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03-29-2022, 01:44 PM | #28 | |
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03-29-2022, 01:58 PM | #29 |
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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.
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03-29-2022, 02:08 PM | #30 | ||
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Thanks for your insight!
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03-29-2022, 02:11 PM | #31 | |
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03-29-2022, 03:23 PM | #32 | |
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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. |
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03-29-2022, 03:48 PM | #33 | ||
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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!
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03-29-2022, 04:18 PM | #34 | |
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03-29-2022, 04:53 PM | #35 | |||
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03-29-2022, 04:54 PM | #36 | |
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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. |
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03-29-2022, 04:58 PM | #37 | ||
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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. |
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03-29-2022, 05:30 PM | #38 | ||
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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!
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03-29-2022, 05:31 PM | #39 | ||
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03-29-2022, 09:23 PM | #40 | |
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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 |
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03-29-2022, 09:24 PM | #41 | ||
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03-29-2022, 09:32 PM | #42 | ||
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03-29-2022, 10:05 PM | #43 | |
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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. |
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03-29-2022, 10:51 PM | #44 | |
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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. |
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