Interesting read this.... Before I bought my car from Audi last month I knew there was a break issue. After reading this it appears virtually everyone has an issue with it. Audi tells me I have 30.5mm disc remaining but 13mm on pads.. you got me thinking about red stuff but is the remaing disc enough?
To be fair I havnt experience d any problems with my discs at all so far. I took it down Santa pod last weekend and the breaks seemed fine... Anyone else had good experiences? Still early days I know but is 30.5 mm disc something to be worried about? I was Thinking to get Audi to changed them as I know at 30mm that's when they are recommended.
How many miles has your car done for interest? If your discs are in reasonable condition and not causing any problems then as Jmcnamee98 says they have some life left although bear in mind they have used 75% of their usable lifespan. You couldn't get them skimmed as this would take .3 to .5mm of material off the disc putting you almost at their minimum allowed thickness.
If your disc surface is as rutted and grooved as mine were then I agree with Jmcnamee98 it's not worth fitting new pads. If your disc surface is flat and smooth then you could give Red Stuff pads a trial but you will be looking to replace the discs and pads pretty soon in the future once the Red Stuff have bedded themselves into your old discs so you would be better waiting for new discs before fitting Red Stuff..
Bear in mind since fitting new discs I have found out my old discs were causing a number of other non braking related issues as they were so out of balance due to the uneven wear. With the new discs all of the following issues have gone away:
Wheel wobble between 70-80.
Vagueness in the steering pulling left or right perceived as alignment problems Noticed during road camber changes even over slight humps in the road changing lanes on motorway etc.
Vagueness in the steering when car under significant power perceived as slight torque steer either in straight ahead driving or when steering at the same time.
Excessive Front suspension patter over uneven road surfaces like the average B road.
Soon after I bought my car Audi inspected the brakes and said they were fine with over 70% wear left. They were wrong, very wrong. My discs were shagged when I bought the car causing imbalance to both front hub, disc, wheel assemblies which was affecting steering/ suspension feel and feedback and breaking efficiency.
Edited by Duke3D, 20 January 2015 - 02:33 AM.
Audi RS3 8P 2011: Phantom Black, Retrofit genuine Audi black grille. Mods: Milltek Decat pipes, Bilstein B16 Coilovers with 034 Motorsport top mounts. Superpro front control arms, Powerflex Gearbox & Dogbone mount inserts, 034 Motorsport Rear ARB, 034 Motorsport Front & Rear Drop Links. Reyland 370mm front brake rotors.