Due to an excessive runout (side-to-side wobble) of the disc plate, the thickness of the disc plate is uneven.
WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
- If the runout is more than 0.02 mm {0.0008 in} at the position 10 mm {0.39 in} from the disc plate edge, uneven wear occurs on the disc plate because the pad contacts the plate unevenly.
- If the runout is less than 0.02 mm {0.0008 in}, uneven wear does not occur.