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Disc Brake Pad Check And Replacement

WARNING: This page is about a different car, the 2006 Mitsubishi Montero. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The brake pads have indicators that contact the brake disc when the brake pad thickness becomes 2 mm (0.08 inch), and emit a squealing sound to warn the driver.
CAUTION:
  • Whenever a pad must be replaced, replace both LH and RH wheel pads as a set to prevent the vehicle from pulling to one side when braking.
CAUTION: If there is a significant difference in the thicknesses of the pads on the left and right sides, check the sliding condition of the piston, lock pin and guide pin.
  1. Check the brake pad thickness through the caliper body check port.

    Standard value: 10.0 mm (0.39 inch) 

    Minimum limit: 2.0 mm (0.08 inch) 

    Fig 1: Checking Brake Pad Thickness Through The Caliper Body Check Port
    G04267302Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  2. Remove the guide pin lock bolt. Lift the caliper assembly and secure it with a wire.
    Fig 2: Securing Caliper Assembly With Wire
    G04267303Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  3. Remove the following parts from caliper support.
    1. Pad and wear indicator assembly < FRONT > Pad and clip assembly < REAR >
    2. Pad assembly
    3. Clip
    4. Shim
    5. Shim B < REAR >
    6. Shim A < REAR >
  4. Measure the hub torque before and after pad installation. Follow the procedure:
    CAUTION: Do not apply excessive grease. Excessive grease may cause brake performance to become poor.
  5. For rear disc bake, apply brake grease SAE J310, NLGI number 1 to the following positions before installing the pad.
    • Pad assembly and shim A contact surface
    • Inner shim A and shim B contact surface
      Fig 4: Locating Shim
      G04267305Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  6. Install the pad and caliper assembly, and check the brake drag force.
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