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Home >> Mitsubishi >> 2012 >> Lancer ES, 4D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 17 (Basic Brake System - Lancer Evolution) >> On-Vehicle Service >> Brake Disc Check >> Brake Disk Thickness Check

Brake Disk Thickness Check

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  1. Remove contaminants or corrosion from the brake disc surface.
  2. Use a micrometer to measure the brake disc thickness at minimum eight points which are 10 mm (0.39 inch) inward from its circumference.

    Standard value: 

    32.0 mm (1.26 inch) <Front> 

    22.0 mm (0.87 inch) <Rear> 

    Limit: 

    30.0 mm (1.18 inch) <Front> 

    20.0 mm (0.79 inch) <Rear> 

    Fig 1: Measuring Brake Disc Thickness
    G07028273Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  3. If the brake disc thickness is worn beyond the limit value at more than one point, replace the brake disc and check its run-out.