rbt

While I had the wheels off to put in some new pads on my '98 1.8TQMS, I mic'ed my front discs and got 0.925". Does anyone know (or have a svc. manual to check) if Audi specifies a minimum thickness for their rotors before replacement is necessary? If I'm close to the min. I might just get some new discs instead of machining them.
FYI, my car has 42K mi. and I _assume_ these are the original discs (bought car used).
TIA,
Rafael

CraigB

Not sure if the OEMs have this or if you can even read it any more. It should be in the service manual, if someone has one handy.

dingster

.906

JWG

Change OEM front rotors every time you change OEM front pads.

Change OEM rear rotors every other time you change OEM rear pads.

Not worth it to go in there frequently and tear everything apart and rebuild just to get a few more thousand miles out of one part than another. Also, its theoretically easier to bed-in new pads on new rotors, as you should have two fairly flat surfaces to begin with as opposed to a new flat pad and old curved rotor.

A practical set of Front Rotors: ATE Powerdiscs, because when the grove wears down its at minimum thickness and needs replacing. They cost about as much as OEM rotors.

Also, kevlar pads (EBC and others) and most high performance pads will need replacement more frequently due to their softness, but, since they remain gentle to your rotors, you will not need to replace the rotors as often.

Perpetual Novice

they say there's not enough metal to turn them even once.