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Home >> Kia >> 2017 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Drivelines & Axles >> Wheel Hubs >> Front Axle Assembly (PHEV) >> Front Hub/Knuckle >> Repair Procedures >> Removal

Repair Procedures: Removal

  1. Remove the wheel and tire.

    Tightening Torque: 

    88.2 - 107.8 N.m (9.0 - 11.0 kgf.m, 65.0 - 79.5 lb.ft)

    G12349677Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION: Be careful not to damage the wheel nuts when removing the wheel and tire.
  2. By hammering on a chisel, unlock the driveshaft lock hub nut caulking.
    G12349678Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: If there is screw thread (A) on the end of the nut, unlock the caulking by using a chisel and then loosen the nut to prevent damaging driveshaft screw thread.
    G12349679Courtesy of KIA MOTORS AMERICA, INC.
  3. Remove the under cover.

    (Refer to Engine Mechanical System - "ENGINE ROOM UNDER COVER ")

  4. Remove the caulking nut (A) from the front axle.

    Tightening Torque: 

    274.6 - 294.2 N.m (28.0 - 30.0 kgf.m, 202.5 - 217.0 lb.ft)

    G12349680Courtesy of KIA MOTORS AMERICA, INC.
    NOTE:
    • The driveshaft lock nut must be replaced with new one. When replacing the drive lock hub nut, use only the nut with screw thread (A) on the end.
      G12349681Courtesy of KIA MOTORS AMERICA, INC.
      G12349682Courtesy of KIA MOTORS AMERICA, INC.
    • Tighten the driveshaft lock hub nut to the specified tightening torque, and caulk by using a chisel and hammer.
    • If there are two key seats, perform on all two seats.

      Caulking Depth (A):  1.5 mm (0.0591 in)

    G12349683Courtesy of KIA MOTORS AMERICA, INC.
  5. Remove the front caliper mounting bolts (A).

    Tightening Torque: 

    98.1 - 117.7 N.m (10.0 - 12.0 kgf.m, 72.3 - 86.8 lb.ft)

    G12349684Courtesy of KIA MOTORS AMERICA, INC.
  6. Remove the wheel speed sensor mounting bolts (A) and brake hose bracket bolt (B).

    Tightening Torque: 

    A: 8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb.ft)

    B: 6.8 - 10.7 N.m (0.7 - 1.1 kgf.m, 5.0 - 7.9 lb.ft)

    G12349685Courtesy of KIA MOTORS AMERICA, INC.
  7. Remove the tie rod end ball joint (C) from the knuckle by using the SST (09568-34000).
    1. Remove the split pin (A).
    2. Remove the castle nut (B).
    3. Use the SST (09568-34000).

      Tightening Torque: 

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

    G12349686Courtesy of KIA MOTORS AMERICA, INC.
    G12349687Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION:
    • When using SST, be careful not to damage the dust cover of lower arm ball joint.
    • Keep SST tied to the car as there is risk of injury when the SST is dropped while removing the lower arm ball joint.
    • Be sure to use SST when removing the lower arm ball joint as general tool such as lever may damage the peripheral parts.
  8. Loosen the pin (A), and then remove the lower arm nut (B).

    Tightening Torque: 

    98.0 - 117.6 N.m (10.0 - 12.0 kgf.m, 72.3 - 86.7 lb.ft)

    G12349688Courtesy of KIA MOTORS AMERICA, INC.
  9. Loosen the screw (A), and then remove the brake disc.
    G12349689Courtesy of KIA MOTORS AMERICA, INC.
  10. Loosen the strut mounting bolts (B) and then remove the hub and knuckle assembly from the strut assembly (A).

    Tightening Torque: 

    196.1 - 215.7 N.m (20.0 - 22.0 kgf.m, 144.7 - 159.1 lb.ft)

    G12349690Courtesy of KIA MOTORS AMERICA, INC.