Carbon Ceramic Squeaking
#1
Carbon Ceramic Squeaking
I picked up a '14 DB9 and recently the brakes tend to squeak pretty bad, but only when they're warmed up. This is contrary to my usual experience with CCB's that only squeak when they're cold. I had the pads treated but that didn't seem to do much.
Anyone have any insight/clues on how to dampen it?
I think the village folk are starting to wonder why I'm murdering a herd of small kittens every time I brake.
Anyone have any insight/clues on how to dampen it?
I think the village folk are starting to wonder why I'm murdering a herd of small kittens every time I brake.
#2
That's unusual for pads to squeal when warmed up, usually that's a cold function. Pad squeal is caused by high-speed vibration of the pad in the caliper reacting to the surface of the rotor. Since your car is under warranty, I'd have the dealer take care of that one. My guess is you may have some kind of glazing on the rotor itself or poorly fit pads in the caliper. They may wind up replacing several components to fix.
#6
Same here , wish I could get it quieter
#7
Thanks for the replies.
I will ask about the shims when I take it in tomorrow. The impression I got from the service manager is that they needed to be bedded properly.
I will ask about the shims when I take it in tomorrow. The impression I got from the service manager is that they needed to be bedded properly.
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#8
You might try hosing off the wheels/brakes. I find that my brakes will begin to squeal/squeak when braking about a week or so after washing the car if I am only driving around town (brakes never really get heated up then).
#10
My Carbon ceramics have a faint squeak as well.
The ZR1's that I had test driven also had a faint squeak, and so did the Bentley SS GT; although it was hardly noticeable in the big GT.
I'm pretty sure that all the CCM brake setups, just like any performance race brakes will have some squeaking.
I would only worry if there was squealing or odd surface wear.
The ZR1's that I had test driven also had a faint squeak, and so did the Bentley SS GT; although it was hardly noticeable in the big GT.
I'm pretty sure that all the CCM brake setups, just like any performance race brakes will have some squeaking.
I would only worry if there was squealing or odd surface wear.
#11
The ceramics on my California squeak consistently and at the same pitch but it's nothing unbearable. The DB9 starts off perfectly silent and gets progressively louder until they sound like I'm parking a big rig. They quiet down completely after they've cooled down for about an hour. Seems a bit odd to me.
#13
Make sure you (or anybody you let wash your car) never spray any type of chemical on your CCM brakes(ex: wheel cleaning solvents) Because they are so porous they will absorb this and transfer it to the pad and this can cause a brake squeal that is very tough to get rid of. Take it to your dealer and let them de-glaze the pads. Should definitely help with your squeal.
#14
The dealer ended up replacing the front brake pads and they've been completely silent thus far. They did mention not to use any brake cleaner (which I'd never used anyway) and even to avoid getting them wet in general.
#15
That's the way to go but normally has to be done after a de-glaze has been performed before they can do it. And getting them wet won't be too much of an issue other than make them squeal until they dry out. The cleaners are what will kill it. Good to hear that they got it sorted for you