gutenfreibier

There are not multiple knuckles. I have looked into a steel brake swap, and from my research, all that is required is steel rotors, calipers, and pads.

Gus B.

If only someone would post pictures/document of having done exactly what you describe above. It has been very well documented that this can be done for other Porsche models, but I have yet to see anyone doing so for the 958 Cayenne series.

VicS

When did the vehicle become a 'truck'?

Gus B.

Just for closure purposes, I passed on this Cayenne Turbo merely because of the uncertainty of the disc wear. As stated before, if it were a "gamble" regarding replacement cost equivalent to iron discs, or slightly more, I would have definitely purchased this vehicle, but due to the fact that the "gamble" entails a potential $30K bill (more than the purchase price of the vehicle), I've decided to look elsewhere and now potentially closing a deal on a 2013 Cayenne GTS with ±46K miles on it and iron rotors.

Hopefully the information I've provided will help others in the future.

vtgt

Didn’t want to create a new thread and this one seemed most relevant. Anyways, I’m in the process of purchasing a CPO 2016 Cayenne Turbo S with PCCBs with about 74,500 Miles. I’ve asked the dealership to measure the PCCB rotors and provide the results alongside the CPO checklist and not just measure the pads. I’m predicting the life to be about 60%+ left, but we will see.

Out of curiosity, do the PCCBs on the 958.2 (2016-2018) Turbo S last any longer than the the ones on the 958.1 or even prior generations?

Gus B.

Make sure that the Porsche dealership has access to the Carboteq measuring tool from Proceq (known as the VAS6813 in the Porsche world). Being that it's a 958.2 version, I am 90% sure that they will be able to measure the brake wear using the Proceq tool and you can have an accurate wear measurement on each disc. This will give you the percentage of wear, but do not accept any other measurement (as in "you have an X amount of miles before you need to replace them, or Y number of years).

Can't be of help regarding lifespan of later discs, but something tells me that newer discs (958.2 vs. 958.1) should have improvements, but no clue if this is certain or not.

acuhon

I just bought 2011 CTT with PCCB and 181k Miles. Original rotors and it stops better than NSX. Didn't have a chance to measure anyhing yet, but very pleased with the performance.

vtgt

Thanks for that. They measured the rotors and said this. I’ve asked what methodology they used to measure the PCCBs. And if they used the Proceq tool. Based on what they are saying I’m a bit surprised that they are in like new condition after almost 75k miles.