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Repair Procedures: Replacement

WARNING: This page is about a different car, the 2019 Kia Niro EV. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the battery (-) terminal.
  2. Remove the heater and blower unit from the crash pad after loosening the mounting nuts.

    (Refer to Heater - "HEATER UNIT ")

  3. Unfasten the mounting screws and remove the evaporator core cover (A).
    G13205045Courtesy of KIA MOTORS AMERICA, INC.
  4. Separate the evaporator temperature sensor (A) from the evaporator core.
    G13205046Courtesy of KIA MOTORS AMERICA, INC.
  5. To install, reverse the removal procedure.
    NOTE:
    • When a new heater core is installed, replenish the compressor oil.
    • Replace the O-ring of each connection part with a new one, and apply several drops of compressor oil (refrigeration oil) on the O-ring before connecting.
    • Use an appropriate O-ring to prevent R-1234yf leakage.
    • Do not spill the coolant on the vehicle. The compressor oil may damage the paint. If the compressor oil is spilled on the paint, wipe away the oil immediately.
    • Prevent any air leak of the system.
    • Charge the system and test the air conditioning performance.
    • The inlet and outlet heater hose should not be mixed up, and tighten the hose clamp well.
    WARNING:
    • Use the refrigerant retrieval/charge device exclusively used for the electric compressor to inject the designated refrigerant (R-1234yf) and refrigeration oil (POE). If the refrigeration oil (PAG) for the ordinary car is injected, the compressor may be damaged or a safety-related accident may occur.
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