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Home >> Kia >> 2012 >> Optima Hybrid >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Automatic Transaxle Control System - HEV >> Transaxle Oil Temperature Sensor >> Repair procedures >> Removal
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Repair procedures: Removal

  1. Air cleaner assembly and air duct.

    (Refer to "Intake and Exhaust system" in EM group)

  2. Remove the Hybrid Power Control Unit (HPCU) assembly.

    (Refer to "HYBRID CONTROL SYSTEM " in HC group)

  3. Remove the under cover (A).

    Tightening torque: 

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

    Fig 1: Locating Under Cover
    G08308082Courtesy of KIA MOTORS AMERICA, INC.
  4. Remove the ATF warmer.

    (Refer to "ATF WARMER " in this group)

  5. Remove the AT tube (A) after removing eye bolt (B).

    Tightening torque: 

    42 ~ 48 N.m (4.3 ~ 4.9 kgf.m, 31.1 ~ 31.4 lb-ft)

    Fig 2: Locating AT Tube And Eye Bolts
    G08308083Courtesy of KIA MOTORS AMERICA, INC.
  6. Replace new gasket and the plug after draining the automatic transaxle fluid by removing the drain plug.(Refer to "AUTOMATIC TRANSAXLE " in this group.)
  7. Remove the valve body cover (A) and breather hose clip (B).

    Tightening torque: 

    1. 13.8 ~ 15.7 N.m (1.4 ~ 1.6 kgf.m, 10.1 ~ 11.6 lb-ft)
    Fig 3: Locating Valve Body Cover And Breather Hose Clip
    G08308084Courtesy of KIA MOTORS AMERICA, INC.
  8. Disconnect the oil temperature sensor connector (A).
    Fig 4: Locating Oil Temperature Sensor Connector
    G08308085Courtesy of KIA MOTORS AMERICA, INC.
  9. Remove the oil temperature sensor (A) after removing a bolt.

    Tightening torque: 

    9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

    CAUTION: Be careful not to damage the harness lock connector.
Fig 5: Locating Oil Temperature Sensor
G08308086Courtesy of KIA MOTORS AMERICA, INC.