FixVault

Disc Rotor Thickness Check

WARNING: This page is about a different car, the 2015 Subaru Outback and 2015 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
  1. Set a micrometer 10 mm (0.39 in) inward from the disc rotor outer perimeter, and then measure the disc rotor thickness (A).
    Fig 1: Measuring Disc Rotor Thickness
    G10276677Courtesy of SUBARU OF AMERICA, INC.
    Size Standard Wear limit Disc rotor outer diameter
    Disc rotor thickness (A) 16-inch 28 mm (1.10 in) 26 mm (1.02 in) 294 mm (11.57 in)
    17-inch 30 mm (1.18 in) 28 mm (1.10 in) 326 mm (12.83 in)
  2. If the wear limit is exceeded in the inspection, replace the disc rotor.