[HapaDude]

This thread has a lot of good information. I'm looking at purchasing a low mileage CPO Macan S with PSCB. If there is squeal from the PSCB, would servicing or replacing them be covered by the CPO warranty?

 

[Louie Tiogar]

Does anyone know, if you have PSCBs (2021 Macan S), can you replace them with steel rotors and pads when they wear out? Or would you have to replace the calipers as well to do that?

 

[Jkirkerx]

I don't have them nor have I worked with them, but to my understanding, it's just the rotors and pads, and the caliper is painted a different color to indicate the expensive option, such as white I think to show that brake dust is eliminated. From what I've heard, they are very nice and I wouldn't mind having them, and they last a very long time. I would imagine maybe at least 40K miles.

 

[Louie Tiogar]

I don't have them nor have I worked with them, but to my understanding, it's just the rotors and pads, and the caliper is painted a different color to indicate the expensive option, such as white I think to show that brake dust is eliminated. From what I've heard, they are very nice and I wouldn't mind having them, and they last a very long time. I would imagine maybe at least 40K miles.

thanks for the input, got me thinking... I started looking up part numbers/disc brake caliper descriptions. I can't find a complete list of base vs S,GTS / gray vs red vs white specifications. But for the most part it does look like the caliper would work if I were to replace the PSCBs with steel rotors and pads down the road.

I have a 2021 Macan S (w/ PSCBs) on hold and will likely be getting it within the week; it currently has ~31,000 miles on it. I'm willing to replace the pads on the PSCBs but will likely change to steel rotors if possible once the PSCB rotors are shot.

 

[yrralis1]

thanks for the input, got me thinking... I started looking up part numbers/disc brake caliper descriptions. I can't find a complete list of base vs S,GTS / gray vs red vs white specifications. But for the most part it does look like the caliper would work if I were to replace the PSCBs with steel rotors and pads down the road.

I have a 2021 Macan S (w/ PSCBs) on hold and will likely be getting it within the week; it currently has ~31,000 miles on it. I'm willing to replace the pads on the PSCBs but will likely change to steel rotors if possible once the PSCB rotors are shot.

This is an old thread. I had a 2020 turbo which came standard with the PCB brakes. On the GTS at that time it was an option. In the third generation which began in 2022 the brakes are standard.

I do notice a difference between the second generation brakes and the current ones. Whether the parts are different or the same, I don’t know but the way they be behaved is different. At the time in the second generation, there were some who complained that they were grabby. I didn’t feel that way because I got used to them, but when I got my third generation car I didn’t notice a difference in pedal feel .

There is one thing that both had in common. They both outlasted the steel brakes in terms of routine maintenance. I had 27,000 miles when I traded in my 2020 turbo. I currently have 36,000 miles on my 2023 GTS. Both vehicles are on original brakes, whereas my steel brakes usually required more frequent service.

 

[Jkirkerx]

thanks for the input, got me thinking... I started looking up part numbers/disc brake caliper descriptions. I can't find a complete list of base vs S,GTS / gray vs red vs white specifications. But for the most part it does look like the caliper would work if I were to replace the PSCBs with steel rotors and pads down the road.

I have a 2021 Macan S (w/ PSCBs) on hold and will likely be getting it within the week; it currently has ~31,000 miles on it. I'm willing to replace the pads on the PSCBs but will likely change to steel rotors if possible once the PSCB rotors are shot.

Without reading other posts here, I would imagine or if it was me, that if the rotor is very smooth or polished looking and the edge of the rotor just has a tiny rim to indicate very little wear, I would just buy the PSCB pads again and slap them on, run the rotors longer.

 

[macanadian]

Without reading other posts here, I would imagine or if it was me, that if the rotor is very smooth or polished looking and the edge of the rotor just has a tiny rim to indicate very little wear, I would just buy the PSCB pads again and slap them on, run the rotors longer.

The allowable wear limit for PSCBs is far smaller than with conventional steel rotors. The tungsten coating is only 0.1mm thick. If you have a lip on the rotor, you're VERY far past the wear limit. The rotors themselves look like mirrors after about 500kms of driving

 

[Jkirkerx]

The allowable wear limit for PSCBs is far smaller than with conventional steel rotors. The tungsten coating is only 0.1mm thick. If you have a lip on the rotor, you're VERY far past the wear limit. The rotors themselves look like mirrors after about 500kms of driving

Guess a tiny lip would mean there done. Be interesting to get a picture of one with wear to see what it looks like.

 

[Joyride22]

PCSBs seem to have their best times behind them. New Cayennes don’t offer this option anymore.

What’s a bit surprising is the lack of discussion about replacement options and cost on this forum. I have PCSBs on my GTS and will face this issue at some point. Not much insights shared here about what to expect… maybe it’s less complicated than we think?

 

[macanadian]

What’s a bit surprising is the lack of discussion about replacement options and cost on this forum. I have PCSBs on my GTS and will face this issue at some point. Not much insights shared here about what to expect… maybe it’s less complicated than we think?

Or we're all in the same boat and very few of us have reached the replacement window yet. Once people do, en-masse, we'll see a lot more discussion on here I suspect, especially from folks who buy a second-hand GTS at a relatively low price and get to experience first-hand the true cost to own one of these cars.

 

[Joyride22]

Or we're all in the same boat and very few of us have reached the replacement window yet. Once people do, en-masse, we'll see a lot more discussion on here I suspect, especially from folks who buy a second-hand GTS at a relatively low price and get to experience first-hand the true cost to own one of these cars.

… that interpretation would be a tribute to the durability of the PCSBs. Given that they have been introduced to the Macan lineup in 2019, some are reaching their fifth year. Many are daily drivers so there should be some with significant mileage already. All in all a good sign.

 

[ARMTNBIKER]

I don't have them nor have I worked with them, but to my understanding, it's just the rotors and pads, and the caliper is painted a different color to indicate the expensive option, such as white I think to show that brake dust is eliminated. From what I've heard, they are very nice and I wouldn't mind having them, and they last a very long time. I would imagine maybe at least 40K miles.

24S
coated brakes, NO BRAKE DUST
Car has a 10 year Borophene coating. It never looks dirty.
I’m told 70-80K before you need brakes.

 

[Alex-Macan]

During a routine inspection at 23,000 km on my Macan GTS (model year 2023), it was discovered that the tungsten carbide coating was peeling off and needed to be replaced. The "defective" brake discs were given to me and have the following identification:
BDE PDF033 95B.6 15.302. AF 01.02.23 0973 FISCHER V7FKB4 - value 10 micrometers
BDE PDF033 95B.6 15.301. AF 31.01.23 1755 FISCHER V7FKB4 - value 10 micrometers
Porsche's description states: "It (the PSCB brake disc) is characterized by significantly reduced brake dust development, increased corrosion resistance, and an approximately 30% longer service life compared to conventional gray cast iron brake discs." It goes on to say: "The PSCB technology is based on a gray cast iron brake disc coated with a tungsten carbide layer approximately 100 micrometers thick."
Could it be that Porsche is cutting down on the coating thickness for cost reasons? Are there general quality issues with the highly praised PSCB brake discs used in the Taycan, Cayenne, and Panamera?