CCBs Squealing While Driving (not braking)...

[Jjoynt]

I understand that CCBs are supposed to squeak while braking, ok that's fine. However, when I am driving at low to moderate or close to highway speeds, whenever the wheel is slightly turned the CCBs squeal. I can hear the noise even with the windows up and music on. It's honestly embarrassing. The noise generally seems to be coming from the front right.

I've seen conflicting info on here that this is normal or even by design while turning. I find that a bit hard to believe.

It is just like this, which turned out be a wheel bearing in this guy's case, which seems really odd as it sounds just like CCB squeal.

Anyone have any experience with CCB noise while driving?

[TractionControlDelete]

Originally Posted by Jjoynt

I understand that CCBs are supposed to squeak while braking, ok that's fine. However, when I am driving at low to moderate or close to highway speeds, whenever the wheel is slightly turned the CCBs squeal. I can hear the noise even with the windows up and music on. It's honestly embarrassing. The noise generally seems to be coming from the front right.

I've seen conflicting info on here that this is normal or even by design while turning. I find that a bit hard to believe.

It is just like this, which turned out be a wheel bearing in this guy's case, which seems really odd as it sounds just like CCB squeal.

Anyone have any experience with CCB noise while driving?

Yes that's normal. I had CCBs on my previous car, 2015 M4, and I was surprised at first because I thought the whole squeaking thing only involved actual braking. I'm sure you see the writing on the wall here… it happens at slow speeds too. Go figure.

My next M4 I got steel brakes and don't miss the CCBs. I remember be annoyed (minor) that I was rolling around and sounding like I had a bad wheel bearing but I stopped noticing after the first month tbh

[Wanted_M]

More than likely your inner pad is dragging/not retracting fully wearing unevenly and making contact with rotor or rotor has a high spot/slightly warped and as you slightly turn the wheel it contacts/squeal. This has happened to me with ST steel rotors with Ferodo pads in the past and its not just a CCB thing. I suggest cleaning pad backside and caliper piston area with air/rag to remove any build up, push pistons in/out to exercise them as a piston might be sticking a bit causing the drag.
When was the last time you flushed brake fluid? That could help.

[Jjoynt]

Originally Posted by F82KPowers

Yes that's normal. I had CCBs on my previous car, 2015 M4, and I was surprised at first because I thought the whole squeaking thing only involved actual braking. I'm sure you see the writing on the wall here… it happens at slow speeds too. Go figure.

My next M4 I got steel brakes and don't miss the CCBs. I remember be annoyed (minor) that I was rolling around and sounding like I had a bad wheel bearing but I stopped noticing after the first month tbh

That is really odd. So you are saying the car is applying brakes while turning at low to moderate speeds? Where did you find this out? One other person mentioned this as well on an old thread

[TractionControlDelete]

Originally Posted by Jjoynt

That is really odd. So you are saying the car is applying brakes while turning at low to moderate speeds? Where did you find this out? One other person mentioned this as well on an old thread

No not applying brakes. Just at low speeds at random times. Usually under 15mph or so

[Jjoynt]

Originally Posted by Wanted_M

More than likely your inner pad is dragging/not retracting fully wearing unevenly and making contact with rotor or rotor has a high spot/slightly warped and as you slightly turn the wheel it contacts/squeal. This has happened to me with ST steel rotors with Ferodo pads in the past and its not just a CCB thing. I suggest cleaning pad backside and caliper piston area with air/rag to remove any build up, push pistons in/out to exercise them as a piston might be sticking a bit causing the drag.
When was the last time you flushed brake fluid? That could help.

I have thought similar about not fully retracting from the rotor for sure. The car is due for brake fluid right now or within the next month or two, you think that could potentially help? Maybe I should mention to a local Euro shop or BMW (not sure where I will take it), but don't want to pay anything crazy for them to attempt to diagnose.

[Jjoynt]

Originally Posted by F82KPowers

No not applying brakes. Just at low speeds at random times. Usually under 15mph or so

I don't understand why at even 45 - 55mph they would still be squealing then

[guess2098]

Both my m3 and m4 has ccb. Both of them makes noise while driving. Most the time it's happens when I slightly turn the steering wheel. Bmw brake pads are floating on the rotors. Even if you don't apply the brake, you can't slide a piece of paper between rotor and brake pad. So yeah it makes noise. Just tell others it's 9k money's noise and you don't have it lol

[TractionControlDelete]

Originally Posted by guess2098

Both my m3 and m4 has ccb. Both of them makes noise while driving. Most the time it's happens when I slightly turn the steering wheel. Bmw brake pads are floating on the rotors. Even if you don't apply the brake, you can't slide a piece of paper between rotor and brake pad. So yeah it makes noise. Just tell others it's 9k money's noise and you don't have it lol

Yup, definitely a thing

[ClubsportJunkie]

I've had this issue since owning my GTS until I swapped the pads. Seems to be during low speeds and turning left (weirdly). Recently I did swap out my pads for Pagid RSC1's, and so far (1k miles) I haven't had the issue come back up. I agree it might have something to do with the calipers (as previously mentioned), but I'd be curious if it also had to do with the CCB's bedding in procedure...

[Jjoynt]

Originally Posted by Sh4d0w

I've had this issue since owning my GTS until I swapped the pads. Seems to be during low speeds and turning left (weirdly). Recently I did swap out my pads for Pagid RSC1's, and so far (1k miles) I haven't had the issue come back up. I agree it might have something to do with the calipers (as previously mentioned), but I'd be curious if it also had to do with the CCB's bedding in procedure...

Yeah it is hard to diagnose for sure. Could be 10 different things

[Jjoynt]

Originally Posted by F82KPowers

Yup, definitely a thing

Hmm interesting, seems that way. Good to know my car isn't the only one that does it at least.

[guess2098]

Originally Posted by Sh4d0w

I've had this issue since owning my GTS until I swapped the pads. Seems to be during low speeds and turning left (weirdly). Recently I did swap out my pads for Pagid RSC1's, and so far (1k miles) I haven't had the issue come back up. I agree it might have something to do with the calipers (as previously mentioned), but I'd be curious if it also had to do with the CCB's bedding in procedure...

Oh that is a great info. Where did you purchase and how much? Any difference (Feel) between this vs oem?

Turning left makes noise is exactly what I have to.

[Wanted_M]

Originally Posted by Sh4d0w

Recently I did swap out my pads for Pagid RSC1's, and so far (1k miles) I haven't had the issue come back up.

Any feedback you can provide on stock pads vs Pagid?
I've been debating a pad swap.

[ClubsportJunkie]

Originally Posted by guess2098

Oh that is a great info. Where did you purchase and how much? Any difference (Feel) between this vs oem?

Turning left makes noise is exactly what I have to.

Bimmerworld for about a G F+R. It is a track pad so yes it had a lot more bite than the OEM pads, which also means you'll eat away at your rotors comparatively. It's just strange that they haven't squeaked as much, and I haven't had the problem discussed here (going back to my conspiracy around bedding the brakes in, I'm sure the dealership only does 60 MPH bedding). Don't get me wrong when they're cold they still squeak to a complete stop, but nowhere near as much as the OEM.

Please be aware of the sketchiness bedding these pads in on the street.

Originally Posted by Wanted_M

Any feedback you can provide on stock pads vs Pagid?
I've been debating a pad swap.

If you're tracking I'd almost say to just go with the iron conversion. The GTS is a lifer for me, so I'm ok with the depreciation when I do swap and toss the CCB's. My logic is that I'll retain the value when I buy the Euro GTS seats .

Assuming you're as crazy as me, I've only used the Pagid pads on the track (comparing to OEM), but they've been bullet proof with no fading on my last 2x 25 minute sessions on a small track (top speed ~90 mph). With the OEM's I had some small fading on the street with tight and technical roads with uphill/downhill, and with these pads I haven't experienced that w/ the same roads.

Here's a great video about the Pagid RSC1's if anyone is interested. Bimmerworld's GTMore Project has already swapped them for iron's, but they also wanted to run 18" rims, which you can't do with the CCB calipers.