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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 94 (Brake System (Except HEV)) >> Front Disc Brake >> Repair Procedures >> Replacement >> Front Brake Pads

Front Brake Pads

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  1. Remove the wheel & tire.

    Tightening torque: 

    88.3 - 107.9 N.m (9.0 - 11.0 kgf.m, 65.1 - 79.6 lb.ft)

    Fig 1: Wheel And Tire
    G12142080Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION: Be careful not to damage the hub bolts when removing the front wheel & tire.
  2. Loosen the Guide rod bolt (B) and then remove the caliper body (A).

    Tightening torque: 

    21.6 - 31.4 N.m (2.2 - 3.2 kgf.m, 15.9 - 23.1 lb.ft)

    Fig 2: Locating Guide Rod Bolt And Caliper Body
    G12142081Courtesy of KIA MOTORS AMERICA, INC.
  3. Remove the pad return spring (A) and then remove the brake pad.
    Fig 3: Locating Pad Return Spring
    G12142082Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: Replace the return spring (A), pad retainer (B), inner brake shim (C), and brake pad (D) all at the same time when replacing the brake pad.
    Fig 4: Locating Return Spring, Pad Retainer, Inner Brake Shim And Brake Pad
    G12142083Courtesy of KIA MOTORS AMERICA, INC.
  4. Using the SST (09581-2T100), install the brake caliper assembly.

    Tightening torque: 

    21.6 - 31.4 N.m (2.2 - 3.2 kgf.m, 15.9 - 23.1 lb.ft)

    Fig 5: Locating Brake Caliper Assembly And Bolts
    G12142084Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION:
    • Do not hammer on the piston or pry directly against piston face using a screwdriver to push in piston.
    • How to use the SST (09581-2T100)
    1. Connect an air hose (B) to the SST after confirming that the valve of the SST is securely closed.
      Fig 6: Locating Air Hose And Valve
      G12142085Courtesy of KIA MOTORS AMERICA, INC.
    2. Insert the SST into the caliper and press the caliper piston while opening the valve of the SST slowly by turning it counterclockwise.
    3. Close the valve (A) of the SST and disconnect the air hose (B); then, open the valve again to get the rest of air out and remove the SST from the caliper.
  5. After installation, bleed the brake system.

    (Refer to Brake System - "Repair Procedures ")