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Home >> Kia >> 2019 >> Optima S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 203 (Driveshaft Assembly (PHEV)) >> Front Driveshaft >> Repair procedures >> Replacement

Repair procedures: Replacement

WARNING: This page is about a different variant/trim than selected.
  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)

    G13156291Courtesy 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.
    G13156292Courtesy 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.
    G13156293Courtesy 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)

    G13156294Courtesy 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.
      G13156295Courtesy of KIA MOTORS AMERICA, INC.
      G13156296Courtesy 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)

      G13156297Courtesy of KIA MOTORS AMERICA, INC.
  5. Remove the wheel speed sensor mounting bolts (A) and brake hose bracket bolt (B).

    Tightening torque  :

    1. 8.8 - 13.7 N.m (0.9 - 1.4 kgf.m, 6.5 - 10.1 lb.ft)
    2. 6.8 - 10.7 N.m (0.7 - 1.1 kgf.m, 5.0 - 7.9 lb.ft)
    G13156298Courtesy of KIA MOTORS AMERICA, INC.
  6. 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  :

      34.3 - 44.1 N.m (3.5 - 4.5 kgf.m, 25.3 - 32.5 lb.ft)

      G13156299Courtesy of KIA MOTORS AMERICA, INC.
      G13156300Courtesy 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.
  7. 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)

    G13156301Courtesy of KIA MOTORS AMERICA, INC.
  8. 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)

    G13156302Courtesy of KIA MOTORS AMERICA, INC.
  9. Using a plastic hammer, disconnect driveshaft (A) from the axle hub.
    G13156303Courtesy of KIA MOTORS AMERICA, INC.
  10. Remove the under cover.

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

  11. Insert a pry bar (A) between the transaxle case and joint case, and separate the drive shaft (B) from the transaxle case.
    G13156304Courtesy of KIA MOTORS AMERICA, INC.
  12. Install in the reverse order of removal.
    CAUTION:
    • Use a pry bar (A) being careful not to damage the transaxle and joint.
    • Do not insert the pry bar (A) too deep, as this may cause damage to the oil seal.
    • Do not pull the driveshaft by excessive force it may cause components inside the joint kit to dislodge resulting in a torn boot or a damaged bearing.
    • Plug the hole of the transaxle case with the oil seal cap to prevent contamination.
    • Support the driveshaft properly.
    • Replace the retainer ring whenever the driveshaft is removed from the transaxle case.