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PCCB Warning

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PCCB Gen One are hopeless - mine failed after 15,000 (mainly road) miles on my GT2...Porsche are of course blaming me!

The carbon surface of the disc separated from the underlying silicon carbide and then destroyed the pads (which were approx 60% worn) after approx 40 miles. I have reported this to the UK Department of Transport as a safety issue as Porsche UK are totally uninterested - other than confirming that even brand new pads can be destroyed in 120 miles once the surface of the disc has failed. There is no warning other than the pad replacement light illuminating (indicating 1/3rd of the pad remaining at that time). Once this light illuminates Porsche say the car is fit to drive gently...but with no warning noise and pad failure within 40 miles this could be lethal....

Quite apart from the ridiculous cost of replacing the discs and pads (Porsche UK quoted over £10,000) there is the ongoing question of why these discs fail so quickly and at such low mileages...when launched they were supposed to last at least 100,000 miles and were "designed for extreme use on the road and Track" now they are wearing out Porsche are apparently blaming the failures on the drivers.

I hear that the Gen Two PCCB wear almost as quickly when hot...so beware!!

Anyone with a similar story please contact me at paulrothwell@mac.com I have photographs of the failures if anyone is interested.
 
Very worrying i have a 02 GT2 with 35000 miles hope i dont need some new pads £10000 b4 christmas not good
 
Would make sense as you don't want to go through this again, besides I think the first GT2's came with steel brakes.
 
Ive just fitted Alcon gen 2 steel brakes from JZ Machtech...better performance than the ceramics with Pagid pads....still no joy with Porsche though...
 
So noone really uses the ceramics then? Presumably people will gradually stop specifying them as options as the word gets around that they can fail??
 
ORIGINAL: PaulRothwell

So noone really uses the ceramics then? Presumably people will gradually stop specifying them as options as the word gets around that they can fail??

Sorry to hear that you've had problems with your early generation PCCBs.

I know two users who are very pleased with theirs and, after lengthy discussions with my service manager and Porsche GB (and AG), I've spec'd the latest PCCBs on my next 911. IMO, the potential benefits justify the initial cost, so we'll see if the latest (3rd ?)generation are as good as I have been assured.
 
Try quizzing Porsche on how many failures they have had....I know one specialist who has replaced 70 (yes seventy) sets of ceramics iin the last year.....I was pleased with mine till they failed at 15,000miles....email me and I'll send you the photographs...
 
Each generation has got better, but still expensive for track use, but maybe now OK for the road, will have to wait and see.

For sure you cannot generalise about the mark 1 failures as applying to today's version. Has anyone any evidence of failures of the current mark 3 sets?
 
Manthely Racing I think have maybe experienced problems with the latest Gen2/3 ceramics anyone know any more about this??
 
The 997 GT3 Cup cars in the Supercup, run the latest generation PCCB set up. The the main benefit being cited is longevity - some teams claiming they last a season.

If there were genuine problems with the earlier set ups (ie not down to mis-use or external damage), then it's a shame that Porsche haven't been more supportive, as it will inevitably damage some people's confidence in both PCCBs and Porsche.
 
Maybe we can get a response from one of the teams...this seems at odds with the reports of Manthey Racings experience in the same series???
 
ORIGINAL: PaulRothwell

Maybe we can get a response from one of the teams...this seems at odds with the reports of Manthey Racings experience in the same series???

When I was at Manthey 2 weeks ago, it was said that they have to change the PCCBs after every race. AFAIK the PCCBs in the 997GT3 are no different to the generation 2 used in the 996.
 

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