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Home >> Genesis >> 2024 >> GV70 2.5T >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brake System >> Rear Disc Brake >> Inspection >> Rear Brake Disc Thickness Check

Rear Brake Disc Thickness Check

  1. Remove the rear wheel & tire.

    (Refer to Suspension System - "WHEEL ")

  2. Check the brake disc for damage and cracks.
  3. Remove all rust and contamination from the surface, and measure the disc thickness at 24 points, at least, of same distance 5 mm (0.20 in) from the brake disc outer circle.

    Rear brake disc thickness 

    • 17 inch Standard: 12.0 mm (0.47 in)
    • 17 inch Service limit: 10.0 mm (0.39 in)
    • 18 inch Standard: 20.0 mm (0.79 in)
    • 18 inch Service limit: 18.0 mm (0.71 in)
    • Deviation: Less than 0.015 mm (0.0002 in) (Circumferential direction), 0.015 mm (0.0004 in) (Radial)
    G16854972Courtesy of HYUNDAI MOTOR AMERICA
  4. If wear exceeds the limit, replace the discs and pad assembly left and right of the vehicle.
  5. Install the rear wheel & tire.

    (Refer to Suspension System - "WHEEL ")