V12V carbon ceramic Q’s

[JohnG1]

And there you have it, thanks Nick.

So - the call of bs for the dealer stands...

[V8V Pete]

JohnG1 said:

And there you have it, thanks Nick.

So - the call of bs for the dealer stands...

The problem is it's not just BS, is it John? It's also a safety issue.

Weighing the CCM discs is apparently the only way of assessing wear (btw if someone can explain to me why measuring their thickness isn't valid I would be interested in that) and the dealer is refusing to do that. So they are happy to change pads whilst possibly sending customers out on to the road with dangerously worn discs. Or is this just a way of them insisting that the discs are replaced at the third pad change (and we all know how much that costs)? The fact neither the dealer nor the current owner may not know how many pad changes the car has had is also a major problem with that approach.

My advice is to find a proper dealer/indy who will service the car properly and not rip you off.

[JohnG1]

V8V Pete said:

JohnG1 said:

And there you have it, thanks Nick.

So - the call of bs for the dealer stands...

The problem is it's not just BS, is it John? It's also a safety issue.

Weighing the CCM discs is apparently the only way of assessing wear (btw if someone can explain to me why measuring their thickness isn't valid I would be interested in that) and the dealer is refusing to do that. So they are happy to change pads whilst possibly sending customers out on to the road with dangerously worn discs. Or is this just a way of them insisting that the discs are replaced at the third pad change (and we all know how much that costs)? The fact neither the dealer nor the current owner may not know how many pad changes the car has had is also a major problem with that approach.

My advice is to find a proper dealer/indy who will service the car properly and not rip you off.

Thickness measures thickness of the disk. Not the density. And the density is crucial. If the disk has been overheated then the disk oxidises and loses density. Hence you bake the disk to remove moisture and then weigh it. From there you have mass and thickness against an acceptable set of ranges.

I'm pretty sure that this is on the Bamford Rose thread somewhere too.

[V8V Pete]

JohnG1 said:

Thickness measures thickness of the disk. Not the density. And the density is crucial. If the disk has been overheated then the disk oxidises and loses density. Hence you bake the disk to remove moisture and then weigh it. From there you have mass and thickness against an acceptable set of ranges.

I'm pretty sure that this is on the Bamford Rose thread somewhere too.

Thank you. Makes perfect sense.

IMHO the dealer mentioned earlier in the thread (who refused to weigh discs) needs naming & shaming and (more importantly) referring to AML for retraining and corrective action.

[Phil57DBS]

Hello at all

CCM by BR
https://www.pistonheads.com/gassing/topic.asp?h=0&...

[A-DBS]

Phil57DBS said:

Hello at all

CCM by BR
https://www.pistonheads.com/gassing/topic.asp?h=0&...

That was a very good post haven’t seen it before.

My disc feel like a mirror to tuch and for now I live in the desert so water is usually not a problem.

I just changed my pads after the coment by Mike futher up on the post. The car has done 17K miles. According to the deler it is the first times the pads are being changed as per their record. I have an early DBS volante in titanium silver. First owner was some saudi prince, have no idea who the 2nd ower was. On paper I’m the 5th owner with the 3rd and the 4th beaing difrent indepndent dealers.
The car is missing some service history in the book which is very normal in Saudi Arabia as noone cares to stamp the book and even the dealers look at you strangly when you ask for a stamp.
I had the 140 point check done by the local dealer before I bought the car and most problems are merly cosmetic. They did miss some things in the check though which I discovered later. Apart from the weighing of the disc I also asked for rebalance to be done for the brake discs due to some steering wheel vibration which was not pick up in any test drive they did. But when it came to removing the discs the utterly refused. Apparently they had tried it before on other cars and were confident they will be damaged.

Anyhow I contacted AM and was later called back by the reigional GM who appolagized deaply. I took the car back today for them to fix it. I also got a special appointment for next month for when the GM is coming over with an expert team and they will have a look over my car in detail. Must say the AM custumer service team are fantastic and I recommend calling them if you have any problems with you local dealers.

[cayman-black]

AMVSVNick said:

I should have checked the service book. Has anyone got it recorded in theirs?

[LiamV12V]

LiamV12V said:

cayman-black said:

Well if it was some grit and they removed the pads and refitted those marks should disappear soon.

I shall be testing that theory this weekend ;-)

Update: another 500 miles or so on the car now and happy to say the discs seem to be pretty much back to normal.

They don’t half produce dust when used “properly”...

[vpr]

Hope that’s paid dust and not disc dust 😩

[vpr]

Hope that’s paid dust and not disc dust 😩

[LiamV12V]

vpr said:

Hope that’s paid dust and not disc dust ??

Lol, let’s hope so!

[kev1966900]

cayman-black said:

I should have checked the service book. Has anyone got it recorded in theirs?

My pads were swapped out under warranty at 13k as they were squealing under braking. Dealer stamped the book then (AM Reading)

[morty1961]

Who are the CCM disc manufacturer ..... Brembo? Whoever it is I cant believe the CCM's fitted to the array of Astons are Aston specific ?????

They are surely fitment on other cars with CCM's?

[northernmedia]

Yep Brembo.
Made specifically for the car apparently.

[Liilpa09]

I read somewhere that the corvette zr1 and ferrari 458 use the same rotors or at least similar enough that they can be interchanged? The zr1 has some aftermarket options as well I believe which are even less expensive than getting the OEM Chevrolet part number....I could be wrong though, I’ll try to find the link.

[northernmedia]

Please do!

[Liilpa09]

northernmedia said:

Please do!

Here's mention of it, I have seen it elsewhere as well....
https://www.pistonheads.com/gassing/topic.asp?h=0&...

I did find some threads about using the ZR1 rotors on the 458, and it's kind of unclear whether or not it's a direct bolt on based off this thread:
https://www.ferrarichat.com/forum/threads/ccm-brak...

[Phil57DBS]

Hello at all

For all Aston Martin with CarbonCeramicMatrix CCM discs, i have an advance set of new brake pads for sale.
at around half OEM prices
RSC1 4941 front pads
RSC1 4943 rear pads

Exactly the same material as OEM pads = Textar 4300 - engraved on the back of the pad.
By the way Pagid manufactures for Brembo in Germany.
Advice assembly assistance provided by PM for DIY

only for the front pads you must change the 4 screws number 8D33-CD60-AA at £5 each - i have them

Nice day
Phil

Edited by Phil57DBS on Friday 7th February 16:05

[RiknRoll]

I have a set of the Pagid RSC1's fitted to my V12V, which were at least sold to me for the reason that they are meant to reduce rotor wear, particularly with spirited driving/track use. No problems so far, brakes feel equally good, and no squeal. I can't tell if they've reduced wear, I have noticed some graining appearing on the discs now, rather than being mirror smooth, but seems even all over - I'm led to believe that's normal for 20k miles.

The original OEM pads still have seemingly plenty of life in them and are currently sat in my cellar as spares!

Edited by RiknRoll on Monday 10th February 12:25