2017 Kia Optima Plug-In Hybrid EXFACTORY OEM SERVICE PROCEDURE

Repair Procedures: Installation

  1. Install in the reverse order of removal.
    NOTE:
    • The existing valve body cover gasket (A) must be replaced with a new one. (Do not reuse it.)
      G12347496Courtesy of KIA MOTORS AMERICA, INC.
    • The existing eyebolt washers (8 pcs) must be replaced with new ones. (Do not reuse them.)
    G12347497Courtesy of KIA MOTORS AMERICA, INC.
  2. Perform the procedures below after installing.
    1. Refill the automatic transaxle with fluid.

      (Refer to Hydraulic System - "FLUID ")

    2. Refill the engine & transaxle system with coolant.

      (Refer to Engine Mechanical System - "COOLANT ")

    3. Refill the hybrid motor cooling system with coolant and then perform the air bleeding using the KDS/GDS.

      (Refer to Hybrid Motor System - "COOLANT ")

    4. Confirm that there is no fluid leakage on connections in the engine starting condition.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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