Some questions about PSCB——Noise and Surface coating cracks

[zenoliu]

I have driven my taycan 4s for 12,000 km.At 10,000km, everything was fine with the brakes.Then I went to a track day event，Drove my car intensely for 15 minutes，the annoying thing appeared.First of all, the coating of the brake discs cracked, then the feeling of the brakes changed from before，The worst part is a rustling sound.
Mirror effect of PSCB was gone，a lot of lines like quenching appeared（all four of them）.

I thought it was just a temporary symptom and drove on for 2000km，The symptoms are not relieved and even I now hear a rustling sound when driving at low speed in a quiet car without using the brakes.Of course, the coating still has many cracks, as if it lose effectiveness.

I returned the car to the aftermarket center and got a reply that this is a normal situation? but I always felt that it was unreasonable.Can an electric sports car from Porsche cause thousands of dollars of optional damage after just under 15 minutes of driving on a low-speed track?

Are there any guy who have the same problem as me?I've uploaded the pictures and the video of noise in the attachment, thanks you can check it.

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[RAHRCR]

Not sure about the sound but I have seen the visual condition on the PSCB rotors before. I presumed that this was normal after regular use.

 

[tigerbalm]

For reference, these are my PSCB's at 35,000km with zero track use. Did do around 1000km of high-speed autobahn driving over a year.

 

[Skystorm]

I drove 30800km with my turbo and they are still
like an mirror..

 

[zenoliu]

作为参考，这些是我在 35,000 公里处使用零轨道的 PSCB。一年多做了大约 1000 公里的高速高速公路驾驶。

[/引用]

Indeed, I also think it should perform as durable as advertised，Just like your mirror

 

[darth_maul_80]

I’ve only done closer to 3000 miles and not discs aren’t mirror like. More like the op’s disc. But performance is still good for me. I have squeal on breaking initially but dealership said it’s normal upon investigation and discs are fine

 

[RAHRCR]

The surface finish in both photos look similar to me. The 2nd set of photos are helpful in understanding the level of brake dust.

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