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Home >> Kia >> 2020 >> Optima EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 367 (Brake System) >> Front Brake Disc >> Repair Procedures >> Inspection >> Front Brake Disc Thickness Check

Front Brake Disc Thickness Check

WARNING: This page is about a different car, the 2022 Kia Seltos. However, it is still accessible from the selected car via links, so may be relevant.
  1. Check the brake disc for damage and cracks.
  2. Remove all rust and contamination from the surface, and measure the disc thickness at 8 points, at least, of same distance (5 mm) from the brake disc outer circle.

    Front brake disc thickness 

    • Standard: 15 inch disc - 23 mm (0.905 in.), 16 inch disc - 25 mm (0.984 in.)
    • Service limit: 15 inch disc - 21.4 mm (0.8425 in.), 16 inch disc - 23.4 mm (0.921 in.)
    • Deviation: Less than 0.005 mm (0.0002 in.)
    G13481718Courtesy of KIA MOTORS AMERICA, INC.