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      02-25-2020, 08:42 PM   #45
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Originally Posted by mjr24 View Post
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Originally Posted by TrevorM3 View Post
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Originally Posted by floating.spirit View Post
This is why I love this forum: straight answers...LOL



just being honest. not sure who would ever say ceramics don't squeal..
They shouldn't. Hardly anyone with ceramics on here or with another model has squealing whereas hardly anyone with steels on here doesn't have squealing.

Bottom line is the "fix" is to spend $700 on changing the brand new OEM pads (which from the post indicate these new pads didn't even fit for awhile)....which is ridiculous.

Bottom line, no $110k car should sound like a junker when it comes to brakes.

My whole intention of this thread was not to say the squealing was unusual....but to highlight the ridiculousness that this has been going on with BMW M models for like 15 years now with no improvement in the stock pads.
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Originally Posted by TrevorM3 View Post
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Originally Posted by floating.spirit View Post
This is why I love this forum: straight answers...LOL



just being honest. not sure who would ever say ceramics don't squeal..
They shouldn't. Hardly anyone with ceramics on here or with another model has squealing whereas hardly anyone with steels on here doesn't have squealing.

Bottom line is the "fix" is to spend $700 on changing the brand new OEM pads (which from the post indicate these new pads didn't even fit for awhile)....which is ridiculous.

Bottom line, no $110k car should sound like a junker when it comes to brakes.

My whole intention of this thread was not to say the squealing was unusual....but to highlight the ridiculousness that this has been going on with BMW M models for like 15 years now with no improvement in the stock pads.
I had steels on my 2018 M5 and ceramics on the 2019.

The steels were embarrassing and BMW told me to take a hike after I had the rotors and pads replaced. The ceramics are very quiet until they have not been washed for about 150 miles of city driving and then they start to act up.

The Porsche, Mercedes and Ferrari etc ceramics are very quiet and rarely make any noise.

I think BMW wanted to fix the bad brake reputation of the past and went too aggressive on compounds on the steels.
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      02-26-2020, 02:32 AM   #46
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Originally Posted by PaulT_M5 View Post
John, can I join that list... of exceptions to the rule

The first few thousand miles I had no problems, but 16 months in with 9k miles they now make an awful squeal when trying to stop slowly in town traffic on my daily commute.

They're not a problem on the open road, or after a good drive.

It must be our climate "oop narth" (from you anyway).
Have you tried Jet washing Paul?, after snow foaming the wheels/Pads, works for me.
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      02-26-2020, 06:38 AM   #47
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just being honest. not sure who would ever say ceramics don't squeal..
I have ceramics and they only squeal when wet and only for the first 2-3 stops before they dry up. Other than that they’ve been completely squeak free.
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      02-26-2020, 02:45 PM   #48
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Originally Posted by JOHNBMWM5 View Post
Have you tried Jet washing Paul?, after snow foaming the wheels/Pads, works for me.
Thanks for the suggestion.

I snow foam, then clean the wheels and finally rinse with a hose on normal water flow before drying off the wheels. I'll try jet washing the next time and see if it makes any difference.
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      02-26-2020, 03:39 PM   #49
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I did a few hard-ish stops on mine and the squeal is gone.
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      02-26-2020, 03:42 PM   #50
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Quote:
Originally Posted by mjr24 View Post
They shouldn't. Hardly anyone with ceramics on here or with another model has squealing whereas hardly anyone with steels on here doesn't have squealing.

Bottom line is the "fix" is to spend $700 on changing the brand new OEM pads (which from the post indicate these new pads didn't even fit for awhile)....which is ridiculous.

Bottom line, no $110k car should sound like a junker when it comes to brakes.

My whole intention of this thread was not to say the squealing was unusual....but to highlight the ridiculousness that this has been going on with BMW M models for like 15 years now with no improvement in the stock pads.
Porsche has the same issue, it's simply the nature of these high performance brakes. Don't like it, change your driving style or change pads. But you will never get the same performance out of a lesser/low dust pad.
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      02-26-2020, 06:54 PM   #51
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Quote:
Originally Posted by Nikolov View Post
I have ceramics and they only squeal when wet and only for the first 2-3 stops before they dry up. Other than that they’ve been completely squeak free.


wait for it.... trust me. at some point you will get it for no apparent reason.

My z06 has less than 10k miles on it, and for odd reason around 8500 miles they just went absolutely nuts for about 3 months. Then it went away.
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      02-27-2020, 02:25 AM   #52
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Originally Posted by TrevorM3 View Post
wait for it.... trust me. at some point you will get it for no apparent reason.

My z06 has less than 10k miles on it, and for odd reason around 8500 miles they just went absolutely nuts for about 3 months. Then it went away.
I'm at 10k miles on the M5 in about 8 months now, not a single squeak (aside from when wet after a car wash). My 991.2 TTS'es brakes behave exactly the same way. They only squeak a bit when wet and only just before coming to a stop. Once I've stopped a few times and they've dried up, they're completely silent.

The only downside of ceramics (besides the price tag) is when it pours and brakes really do get wet, you can have an "oh shit" moment, as they really don't brake that well when wet.
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      02-27-2020, 11:07 PM   #53
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This video is hilarious (my "honking" brakes are not)

One of my favorite parts is the way they introduce the guy as being "responsible" for the brakes. The entire video is simply bizarre.

If having great brakes on an amazing car means you have no choice with the school bus brake squeal then sign me up. Having heard that other performance brake systems don't have that issue as frequently is disappointing.

All of our questions and concerns are answered here...

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      02-28-2020, 03:29 AM   #54
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So they have confirmed that:

Stoppie goodie = squeaky squeaky
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      02-28-2020, 06:59 AM   #55
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haha. At least the guy did not suggest to turn up the radio volume to drown out the noise because you just have to live with this bs.
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      02-28-2020, 12:49 PM   #56
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I spoke to a Porsche dealer who said many of his customers with CCBs complain about squealing. So, it's obviously not just a BMW issue or a steels issue, and it seems to happen inconsistently.
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      02-28-2020, 04:22 PM   #57
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Quote:
Originally Posted by Neptune7 View Post
I spoke to a Porsche dealer who said many of his customers with CCBs complain about squealing. So, it's obviously not just a BMW issue or a steels issue, and it seems to happen inconsistently.
Meaning if your brakes make noise....it is NOT normal.

Otherwise, the only other thing they could say is that the brakes NOT making noise is abnormal.
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      03-01-2020, 06:53 PM   #58
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Mine after sending in to the dealers last week for some electronic issues started squealing really badly after collecting back the car. Wonder what did they do to the car to make the car squeal so badly now.

Yesterday on a lazy sunday afternoon, I took the car out to a deserted road and gave it the beans for some fun then I decided to do a few emergency brakes to see how does the car fare for my personal fun. Wow the steel brakes are pretty good as well. After a few emergency brakes, the brake squeal went away. I'm wondering if we need to drive the car hard and brake hard for the car to be in good working condition?

Reason being, after a slow sedated extended drive of the car to a place for supper, upon start up of the car to drive home, car indicated multiple errors. I usually drive it like I stole it and no issues at all.
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      03-01-2020, 06:56 PM   #59
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Quote:
Originally Posted by Neptune7 View Post
I spoke to a Porsche dealer who said many of his customers with CCBs complain about squealing. So, it's obviously not just a BMW issue or a steels issue, and it seems to happen inconsistently.


this is what i've been saying.. lol.

If your steels are squealing, thats a problem. I've never had that happen, CCB, 100% guaranteed.
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      03-01-2020, 06:59 PM   #60
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The only time mine make a school bus sound is if I slow down at the speed of a school bus. If I brake harder it never happens.
If i brake very lightly and then firmer it goes away.(during the same stop).
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      03-01-2020, 10:58 PM   #61
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Quote:
Originally Posted by mjr24 View Post
Meaning if your brakes make noise....it is NOT normal.

Otherwise, the only other thing they could say is that the brakes NOT making noise is abnormal.
Same topic seems to pop up on any and all performance car forums. I’ve been on F80, F87, or my partner’s AMG GT, Porsches Forum etc. etc... Its often misunderstood, and Porsche made this video in response to this.

https://youtu.be/fUNHb9O52WQ

There are many factors contributing to this, but what Usually goes is Squeaky brake is inevitable on performance cars. Our Porsches, AMGs, and Ms all have had experience with brake squeal, and I wouldn’t say if it’s one over another in terms of frequency. It’s all case dependent, but yes more so in daily driving.
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      03-02-2020, 01:46 AM   #62
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Quote:
Originally Posted by ST3 View Post
This video is hilarious (my "honking" brakes are not)

One of my favorite parts is the way they introduce the guy as being "responsible" for the brakes. The entire video is simply bizarre.

If having great brakes on an amazing car means you have no choice with the school bus brake squeal then sign me up. Having heard that other performance brake systems don't have that issue as frequently is disappointing.

All of our questions and concerns are answered here...

Thanks for sharing.
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      03-02-2020, 04:08 AM   #63
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Quote:
Originally Posted by BMWCAT View Post
Quote:
Originally Posted by mjr24 View Post
Meaning if your brakes make noise....it is NOT normal.

Otherwise, the only other thing they could say is that the brakes NOT making noise is abnormal.
Same topic seems to pop up on any and all performance car forums. I've been on F80, F87, or my partner's AMG GT, Porsches Forum etc. etc... Its often misunderstood, and Porsche made this video in response to this.



There are many factors contributing to this, but what Usually goes is Squeaky brake is inevitable on performance cars. Our Porsches, AMGs, and Ms all have had experience with brake squeal, and I wouldn't say if it's one over another in terms of frequency. It's all case dependent, but yes more so in daily driving.
The real question is why is this so prevalent? We know the aftermarket pads fix the issue....so why haven't the car makers been able to duplicate this?
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      03-02-2020, 05:14 AM   #64
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FWIW, mine haven't haven't been making any noise and I'm coming up on 3k miles. I bedded them in pretty good first day I had it. (Steel brakes). Half a dozen times in succession, full pressure from 80 to 100 mph down to nearly full stop and back up to speed. I've heard a couple squeaks from them but that was after washing the car and it didn't last much past getting out of my driveway.
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      03-02-2020, 09:19 AM   #65
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Quote:
Originally Posted by mjr24 View Post
The real question is why is this so prevalent? We know the aftermarket pads fix the issue....so why haven't the car makers been able to duplicate this?
Aftermarket pads people are referring to usually are what’s called “street pads” which doesn’t generate as much noise. However, that’ll inevitably eat into the actual braking performance. if there is a solid solution of being no noise with great braking force and resist fades, I’m sure performance/luxury car companies will jump on it and charge people big bucks. (Knowing the Germans)

Also knowing Porsche’s pursue for perfection, they would have done it already if it’s possible.
(for example, the new Panamera seats are more elegant, more adjustable, and in a a lot thinner and compact package compare to our M5. They however, is able to make perfect massaging seats that’s leap and bound better than ours...ehh.. off topic?)
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      03-02-2020, 12:25 PM   #66
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Quote:
Originally Posted by TrevorM3 View Post
this is what i've been saying.. lol.

If your steels are squealing, thats a problem. I've never had that happen, CCB, 100% guaranteed.
But it's not. It's how you are braking. You are taking a high performance racing brake system and braking like a soccer mom would driving a minivan. If you do that, you will likely get some noise out of the brakes. If you simply brake a little later and harder, it will go away. It's not unique to CCB at all. In fact, my Porsche PCCBs never squealed once, while my iron rotors Porsches did from time to time when I commuted in them and were dragging the brakes gently into stops. As soon as I broke harder a few times, the sound was gone.

My M5 brakes were honking a week ago because I was doing the slow cruise thing. A couple mildly harder stops, and remembering not to drag the brakes, and the sound is gone.
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