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Brake Question: Your Thoughts

Horsesoldiers

New member
Hi all, my 997.1 C2S is in for its main annual service/MOT, pleased to say no issues at all except the inside of the front discs are scored and the rears on the inside are not shiny like the outside. Brakes have no loss of feel/power and Paragon Porsche think they will be fine for another 6-12 months. What i dont understand is why they would become scored and worn in this way...Pads/Discs where new 3 years ago. Any ideas?[attachment=IMG_0695.jpg]

Picture of front right
 
That scoring is significant and will adversely affect braking performance. You will need to replace the front rotors and pads and check hub bearings for wear etc.
My guess would be the car has been driven with pads worn down to the mounting plates. [:(]
Regards,

Clive
 
Hang on - PARAGON said they'd be OK for up to another year?!
No.

NO.

Age is irrelevant where brakes are concerned, it's like tyres - all about usage. A car left outside, or maybe washed then left inside will very quickly get corrosion on the disc surface. The longer a car is left between drives, the harder it is for the pads to clear off any surface grot when the car is driven. (More so if the car is being driven sedately, as there's no real heat getting to them)
In extreme cases - as it appears here - the rot takes hold and actually resists attempts to clear it off but instead, in effect becomes part of the disc surface, resulting in the wear patterns you see here. Yes, running a car on virtually bare pads will do this as well, but you'd have both a warning on the dash, and almost certainly a horrible grating noise every time you braked. It's difficult, but this disc also looks to have a significant lip on the outer edge as well - another indicator of wear.

1) The front end needs new discs and pads soonest.
2) The car needs to be driven with more emphasis on braking effort after cleaning, or in wet conditions where possible to ensure that moisture build up is reduced.
3) If cleaning with a jetwash, focus on the disc holes. There's a lot of dust caked in there as well.
 
I would suggest that you take the car for a short run before putting away on garage after cleaning using the brakes a lot to dry off the discs and pads. Even if you park outside do this as well.
 
That is quite significant scoring, I must admit if it was my car I would replace discs and pads
 
Thanks for all the replies, which i agree with. Very odd as brake performance, feel etc are all spot on.. Replacements will be fitted soon.
 

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