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02 C4S minimum rotor thickness please

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C4S (only)

Brake disc thickness, new

front 34mm

rear 28 mm

Minimum brake disc thickness after machining (brake disc must only be reworked symmetrically)

front 32.6 mm

rear 26.6 mm

Brake disc wear limit

front 32.0 mm

rear 26.0 mm

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  • 4 years later...

So I have been hearing a slight squeal when breaking intermittently for the past month or so. I figured it was the wear indicator, so I pulled my wheels to see how things looked and get an inventory of parts for a brake job. I have an 02 C4S which appears to have the same minimum requirements as listed above.

My rotors are 32.75 mm front / 27.25 rear and the pads are a little over 6mm front / 8mm rear. Would you suggest doing front and rear? Just pads or pads and rotors all around? I picked up the car 2 years ago with 36k miles and it is now pushing 50k. This is my first brake job on the car, so I am not sure how much wear I should anticipate on the rotors before the pads are ready to be changed again, or how quickly the pads will go. I drive the car daily, but have not had it on the track to date :cursing: . I closely inspected all four rotors and do not see any hairline cracks which is another reason I am debating which way to go....

Do the dampers and caliper springs need to be replaced every time breaks are done? I know it is recommended, but just want to know if this is a real world necessity.

I am leaning towards replacing everything but do not want to throw money away unnecessarily.

Edited by sbrauner
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