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Home >> Kia >> 2018 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Steering >> Steering Column >> Motor Driven Power Steering System (PHEV) >> Steering Gear box >> Repair Procedures >> Removal

Repair Procedures: Removal

  1. Turn ignition OFF and disconnect the negative (-) battery cable.
  2. Remove the universal joint bolt (A).

    Tightening torque: 

    29.4 - 34.3 N.m (3.0 - 3.5 kgf.m, 21.7 - 25.3 lb.ft)

    G12349979Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION:
    • Keep the neutral-range to prevent the damaging of the clock spring inner cable when you handling the steering wheel.
    • Do not reuse the bolt.
  3. 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)

    G12349980Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION: Be careful not to damage the hub bolts when removing the front wheel & tire.
  4. Remove the under cover.

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

  5. 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)

    G12349981Courtesy of KIA MOTORS AMERICA, INC.
    G12349982Courtesy 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.
  6. 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)

    G12349983Courtesy of KIA MOTORS AMERICA, INC.
  7. Remove the stabilizer link nut (A).

    Tightening torque: 

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

    G12349984Courtesy of KIA MOTORS AMERICA, INC.
  8. Remove the muffler hanger.
    G12349985Courtesy of KIA MOTORS AMERICA, INC.
  9. Loosen the bolts & nuts and then remove the sub frame (D).

    Tightening torque: 

    Bolt:

    (A): 44.1 - 58.8 N.m (4.5 - 6.0 kgf.m, 32.5 - 43.4 lb.ft)

    (B): 156.9 - 176.5 N.m (16.0 - 18.0 kgf.m, 115.7 - 130.2 lb.ft)

    Nut:

    (C): 156.9 - 176.5 N.m (16.0 - 18.0 kgf.m, 115.7 - 130.2 lb.ft)

    G12349986Courtesy of KIA MOTORS AMERICA, INC.
  10. Loosen the bolts (A) and then remove the heat protector.

    Tightening torque: 

    7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb.ft)

    G12349987Courtesy of KIA MOTORS AMERICA, INC.
  11. Loosen the gear box mounting bolts (A) and then remove the gear box.

    Tightening torque: 

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

    G12349988Courtesy of KIA MOTORS AMERICA, INC.
  12. Install in the reverse order of removal.
  13. Check the wheel alignment.

    (Refer to Suspension System - "ALIGNMENT ")