[pplaciii]

CCB brakes should last like 100k miles or 150k kilometers under normal conditions. If you track it heavily those numbers will come down very quick. On the street how hard are you on the brakes? How often do you see your temps on the screen saying "hot" for the brakes? I think only a handful of times my brakes got that hot that it showed "hot" on the screen and that was during the hottest days with tons of spirited driving. Otherwise they normally run cold and on occasion normal.
Who checked the rotors for you? Did they weigh them? If so what was the weight and compare that to what they should weigh minimum.

The brakes never been in hot (red) a few times in white temperature in the screen. I always cooled them back to (blue) cold before stopped. Anyway, 65k miles in the car. Probably, I need to find someone for a second opinion. Any suggestions? Official dealership? I prefer to avoid them. I'm in SE UK.

 

[pplaciii]

I'll upload photos soon.
Regarding the noise on braking. It has a noise coming from the rear "glazed" brakes on braking. I thought that it's normal for ccb brakes.

Thank you all.

 

[pplaciii]

Photos about all 4. 2 photos per corner.

What do you think about these ccb brake discs?

Thank you.

 

[pplaciii]

Can we get some pics?

I have tracked mine 4 times and the brakes still look and function as they did new.

I have uploaded photos.

 

[pplaciii]

Have the rotors been weighted?

Not yet.

 

[pplaciii]

Look brand new

Agree.

 

[pplaciii]

Thanks for all of these. I will update you. Stay awesome!

 

[pplaciii]

I see no issue from the pics. They look perfect, pads look perfect.

Not warped and not glazed. To even suggest this tells me the mechanic is clueless and you should move on to a more knowledgeable one or one not trying to rip you off.

I'd say something else is going on but in the mean time, go do a few high speed stops from like 80 down to 35mph, do that a 2-3 times and see if the vibration diminishes.

But I do have one last question. You don't mention that you have experienced this, it sounds like only the mechanic did?

If so, once you warm up the brakes and you do a high speed stop, have you noticed this judder? Can you explain it a bit more because my thinking is maybe the brakes are just not warm enough when you are doing a high speed stop.


Likely if this is the case, the rotors have excessive runout and need replacing.

The whole story started with a reduction in the brake performance. I experienced that mid summer it's not as grabby as before. I specifically enjoyed this behavior of these CCB. After replacing the brake fluid there is no change. The situation is very similar

I don't have a say in that, it's just how it is.

 

[pplaciii]

I see no issue from the pics. They look perfect, pads look perfect.

Not warped and not glazed. To even suggest this tells me the mechanic is clueless and you should move on to a more knowledgeable one or one not trying to rip you off.

I'd say something else is going on but in the mean time, go do a few high speed stops from like 80 down to 35mph, do that a 2-3 times and see if the vibration diminishes.

But I do have one last question. You don't mention that you have experienced this, it sounds like only the mechanic did?

If so, once you warm up the brakes and you do a high speed stop, have you noticed this judder? Can you explain it a bit more because my thinking is maybe the brakes are just not warm enough when you are doing a high speed stop.


Likely if this is the case, the rotors have excessive runout and need replacing.

In normal circumstances I don't feel it. I don't do 200-0 stops usually. The rear brake is noisy on braking but I thought that's how CCB-s are.

How noisy CCB brakes are?

To go back to the begining of the story. It's started with a drop off stopping power. Initially we replaced the brake fluid, which did not help.
The sutiation is very similar to a normal car with break master cylinder when that cylinder needs a refurbishement => the brake not as grabby as before, needs some time to build up the brakeforce.
When I had a test drive with the mechanic he mentioned the issues: vibration at the front, noisy rear brakes on braking => glazed rear brakes.
Which could be right if the brake would be a usual steel but it's very strange for CCB.

Just to repeat myself, these brakes have never been exposed to excessive heat. The brake temp monitor a few times became white on the display but most of the time (97% of the cases) it's blue.

 

[pplaciii]

They can be a little noisy. There is also a Bulletin on a spacer that fits on the front, ask your dealer about it. Might help solve the issue.

Also, I talking high speed like 65mph with a heavy stop.

Check for parking brake getting stuck too. Glazing is not a real issue with CCM

I'd say you possibly have a master cylinder issue, improper brake fluid or brake fluid change.

I doubt the discs are in issue. What mileage does the car have?

65K Miles. The brake fluid was replaced 6 months later than should have been but the water content of the brake fluid was fine.

 

[pplaciii]

Can you describe the noise? Mine started making groaning noises coming from the rear axle when hot and braking from high speeds. I figured this was due to the brakes but the issue persisted even after changing pads and discs. Turns out it was the diff and drive shafts. Replaced and problem went. Another thing this solves was low frequency vibration coming from the floor. Stock diff fluid overheats very easily at the track and causes all sorts of problems.

Best,
Paul

Thanks Paul,

 

[pplaciii]

Thanks Paul, how can we test the rear diff regarding this?

 

[pplaciii]

I see no issue from the pics. They look perfect, pads look perfect.

Not warped and not glazed. To even suggest this tells me the mechanic is clueless and you should move on to a more knowledgeable one or one not trying to rip you off.

I'd say something else is going on but in the mean time, go do a few high speed stops from like 80 down to 35mph, do that a 2-3 times and see if the vibration diminishes.

But I do have one last question. You don't mention that you have experienced this, it sounds like only the mechanic did?

If so, once you warm up the brakes and you do a high speed stop, have you noticed this judder? Can you explain it a bit more because my thinking is maybe the brakes are just not warm enough when you are doing a high speed stop.


Likely if this is the case, the rotors have excessive runout and need replacing.

I did a few intense braking from 100Mph (Obviously in Germany) the vibration from the front diminished.

Thanks for the advice.

I have a booking for an Alfa garage, hopefully they can give me answers on 21/03/2023.

 

[pplaciii]

I visited the Alfa garage, after the measurements (only thickness) I learned there is still 50% life in the discs & pads at 65k miles in the clock this is expected. Their advice: I need to get them up to temperature the burn out the deposits. Hard braking from 60Mph to 30Mph 10 times. If this doesn't help, I need to replace the rear discs & pads.

Some wheel cleaner could damage the CC brake disc as well.

 

[pplaciii]

I also found a few videos on Ytube where they explained the different noises of CCBs, how CC break discs looks like when it's new, at 50% of it's life and when it worn out. Yt is a great information source.

Also the measurements to identify the life of the CCB disc:
-thickness
-weight
-just the look of the surface
-there is a new measurement tool which works by electricity

The surface of the discs must be like a mirror, very smooth. If it's not smooth that could be a worn out disc or because of the deposits that you need to burn out.

Worn out discs: there are several companies who offer CCB discs resurfacing for the fraction of the price of a new disc.

 

[pplaciii]

Not particular on QV but general experience with Brembo CCM brakes:

• they feel a bit dead when cold. On a cold morning I'd want to apply a bit brakes to warm it up. Otherwise sudden stop may be a bit scary.
  

  >It's fun to drive on the motorway in the winter 😂 Alfa Romeo did some corrections with a software update. It was scary before.

• The CCMs don't really heat up on the street so brake bedding is never really done if only driven on the street.
  

  > You can put some heat in them if you are aggressive enough. As my pads around 50% worn, they heat up quickly.

  Regarding the bedding, you are absolutely right 👍. That needs more heat, need to go to the limit of the ccm breaks. When it smokes, that's when the bedding is done.
  
• They wear more when they are hot. Thus they are usually not worn if only driven on the street and would last like life time. They do heat up, they just dissipate heat very fast.
  

  > They wear when they cold, the deposits caused problems for me.

• The street pads for ccm aren't the most suitable pads for the track. There are a few track pads for ccm's.
  

  > Do they wear less than the street ccms? Never hear about them before.

• I've never heard of them warping either. CCMs are mostly trouble free, but they do cost a lot more to replace.
  

  > Warping is not possible for ccms.

• I think they used to be like $30+k upgrade from standard brakes on F430s. Price sure came down a bit nowadays.

Thanks for your comment. This is becoming a collection of information about CCMs.

 

[pplaciii]

I haven't burned out the rear brakes properly yet.

What's the best way to put maximum brake force to the rears?

Race mode, firm suspension setting?

 

[pplaciii]

Just a new information that I heard, after car wash, use your CC brakes 2-3 hard braking (just for drying it) otherwise it will be noisy & there will be more corrosion on the discs surface.