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Home >> Hyundai >> 2015 >> Sonata Eco >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 115 (Disc Brake System (HEV)) >> Front Disc Brake >> Repair Procedures >> Inspection >> Front Brake Disc Thickness Check

Front Brake Disc Thickness Check

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  1. Check the brake pads for wear and fade.
  2. Check the brake disc for damage and cracks.
  3. 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: 28 mm (1.10 in)
    • Service Limit: 26.4 mm (1.04 in)

    Deviation: Less than 0.005 mm (0.0002 in)

    Fig 1: Measuring Disc Thickness
    G10589294Courtesy of HYUNDAI MOTOR AMERICA
  4. If wear exceeds the limit, replace the discs and pad assembly left and right of the vehicle.