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Home >> Kia >> 2012 >> Optima LX, Automatic Trans >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Disc Brake System - Except HEV >> Rear Disc Brake >> Repair Procedures >> Replacement (With EPB) >> Rear brake pads

Rear brake pads

  1. Remove the rear wheel & tire.
  2. Connect the GDS to the data link connector located underneath the dash panel.
  3. Ignition "ON" & Engine "OFF".
  4. Release the electric parking brake.
  5. Select vehicle name and EPB system.
  6. Select the "PAD change mode (Before pad change)".
    7. Fig 1: Scantool Display - Pad Change Mode
    G00535537Courtesy of KIA MOTORS AMERICA, INC.
  7. Perform the " PAD change mode (Before pad change)" procedure with GDS.
    8. Fig 2: Scantool Display - Pad Change Mode (Before Pad Change)
    G00535538Courtesy of KIA MOTORS AMERICA, INC.
  8. Ignition "OFF".
  9. Disconnect the electric parking brake actuator connector (A).
    10. Fig 3: Identifying EPB Actuator Connector
    G00535539Courtesy of KIA MOTORS AMERICA, INC.
  10. Loosen the guide rod bolts (B) and then remove caliper body (A).
    11. Fig 4: Identifying Caliper Guide Rod Bolts And Caliper Body
    G00535540Courtesy of KIA MOTORS AMERICA, INC.
  11. Replace pad retainers (C) and brake pads (B) in the caliper carrier (A).
    12. Fig 5: Identifying Pad Retainers, Pads, And Carrier
    G00535541Courtesy of KIA MOTORS AMERICA, INC.
  12. Use a SST (09581-11000) when installing the brake caliper assembly.
    Fig 6: Identifying SST (09581-11000)
    G00535542Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: Make sure that the piston groove (B) is rotated 10° and faces the marking (A) on the housing as shown in the diagram.
    Fig 7: Aligning Brake Caliper Piston Groove
    G00535543Courtesy of KIA MOTORS AMERICA, INC.
  13. Place the caliper body (A) on the caliper carrier and tighten the guide rod bolts (B).

    14. Tightening torque: 

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

    Fig 8: Installing Caliper Body On The Caliper Carrier
    G00535544Courtesy of KIA MOTORS AMERICA, INC.

    Assemble the caliper body so that the piston groove (A) is in-line with the pad center lobe (B).

    Fig 9: Aligning Piston Groove With Pad Center Lobe
    G00535545Courtesy of KIA MOTORS AMERICA, INC.

    * Make sure that the piston and pad are tightly attached.

  14. Connect the electric parking brake actuator connector (A).
    15. Fig 10: Identifying EPB Actuator Connector
    G00535539Courtesy of KIA MOTORS AMERICA, INC.
  15. Ignition "ON".
  16. Select the "PAD change mode (Before pad change)".
    17. Fig 11: Scantool Display - Pad Change Mode (Before Pad Change)
    G00535538Courtesy of KIA MOTORS AMERICA, INC.
  17. Perform the " PAD change mode (Before pad change)" procedure with GDS.
    18. Fig 12: Scantool Display - Pad Change Mode (Before Pad Change)
    G00535538Courtesy of KIA MOTORS AMERICA, INC.

    Check that the parking brake operates normally.

  18. IGN switch "OFF" and remove the GDS.
  19. Install the rear wheel & tire.

    20. Tightening torque: 

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

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