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 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

If the runout is more than 0.04 mm {0.002 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 0.04 mm {0.002 in} , uneven wear does not occur.