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Home › Kia › 2017 › Soul Base, Automatic Trans › Repair and Diagnosis › Heating, Ventilation & A/C (HVAC) › HVAC Control Systems › Heater System › Heater Unit › Repair Procedures › Replacement

Repair Procedures: Replacement

  1. Disconnect the negative (-) battery terminal.
  2. Recover the refrigerant with a recovery/recycling/charging station.
  3. When the engine is cool, drain the engine coolant from the radiator.

    (Refer to Engine Mechanical System - "COOLANT ")

  4. Remove the cowl top cover.

    (Refer to Body - "COWL TOP COVER ")

  5. Remove the bolts and the expansion valve (A) from the evaporator core.

    Tightening torque  :

    7.8 ~ 11.7 N.m (0.8 ~ 1.2 kgf.m, 5.7 ~ 8.6 Ib-ft)

    Fig 1: Removing Bolts And Expansion Valve From Evaporator Core
    G12238164Courtesy of KIA MOTORS AMERICA, INC.
  6. Remove the expansion valve flange (A) after loosening the screws.
    Fig 2: Removing Expansion Valve Flange Screws
    G12238165Courtesy of KIA MOTORS AMERICA, INC.
    NOTE:
    • Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
    • When installing, replace with a new O-ring (B).
  7. Disconnect the inlet (A) and outlet (B) heater hoses from the heater unit.
    Fig 3: Disconnecting Inlet And Outlet Heater Hoses From Heater Unit
    G12238166Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION:
    • When disconnecting the hoses, engine coolant will pour out of the hose. So drain the coolant into a clean drip pan.
  8. Remove the inlet and outlet heater hoses flange (A) after loosening the nuts (B).
    Fig 4: Removing Inlet And Outlet Heater Hoses Flange Nuts
    G12238167Courtesy of KIA MOTORS AMERICA, INC.
    Fig 5: Removing Inlet And Outlet Heater Hoses Flange
    G12238168Courtesy of KIA MOTORS AMERICA, INC.
  9. Loosen the cowl cross member mounting bolts (A).
    Fig 6: Loosening Cowl Cross Member Mounting Bolts
    G12238169Courtesy of KIA MOTORS AMERICA, INC.
  10. Remove both sides of front seat assembly.

    (Refer to Body - "FRONT SEAT ASSEMBLY ")

  11. Remove the floor console assembly.

    (Refer to Body - "FLOOR CONSOLE ASSEMBLY ")

  12. Remove the center fascia panel.

    (Refer to Body - "CENTER FASCIA PANEL ")

  13. Remove the crash pad lower panel.

    (Refer to Body - "CRASH PAD LOWER PANEL ")

  14. Remove the glove box housing.

    (Refer to Body - "GLOVE BOX HOUSING ")

  15. Remove the crash pad center lower panel.

    (Refer to Body - "CRASH PAD CENTER PANEL ")

  16. Remove both sides of the front pillar trim.

    (Refer to Body - "FRONT PILLAR TRIM ")

  17. Remove both sides of the cowl side trim.

    (Refer to Body - "COWL SIDE TRIM ")

  18. Remove the steering column shroud lower panel.

    (Refer to Body - "STEERING COLUMN SHROUD PANEL ")

  19. Remove the steering wheel.

    (Refer to Steering system - "STEERING WHEEL ")

  20. Remove the multifunction switch.

    (Refer to Body Electrical System - "MULTIFUNCTION SWITCH ")

  21. Lower the steering column after loosening the mounting bolts.

    (Refer to Steering System - "STEERING COLUMN AND SHAFT ")

  22. Remove the rear airduct assembly (A).
    Fig 7: Removing Rear Airduct Assembly
    G12238170Courtesy of KIA MOTORS AMERICA, INC.
  23. Remove the shift lever assembly.

    (Refer to Automatic Transaxle System - "SHIFT LEVER ")

  24. Disconnect the airbag control module (SRSCM) connector (A).
    Fig 8: Disconnecting Airbag Control Module (SRSCM) Connector
    G12238171Courtesy of KIA MOTORS AMERICA, INC.
  25. After loosening the mounting bolts and nuts, then remove the cowl cross bar center bracket (A).
    Fig 9: Removing Cowl Cross Bar Center Bracket
    G12238172Courtesy of KIA MOTORS AMERICA, INC.
  26. Disconnect the passenger compartment junction box connectors (A).
    Fig 10: Disconnecting Passenger Compartment Junction Box Connectors
    G12238173Courtesy of KIA MOTORS AMERICA, INC.
  27. Remove the passenger compartment junction box mounting clips (A).
    Fig 11: Removing Passenger Compartment Junction Box Mounting Clips
    G12238174Courtesy of KIA MOTORS AMERICA, INC.
  28. Disconnect the multi box connectors (A).

    [Driver's] 

    Fig 12: Disconnecting Multi Box Connectors (Driver)
    G12238175Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's] 

    Fig 13: Disconnecting Multi Box Connectors (Passenger)
    G12238176Courtesy of KIA MOTORS AMERICA, INC.
  29. Disconnect the connector (A) and the mounting clips (B) in the front pillar.

    [Driver's] 

    Fig 14: Disconnecting Connector And Mounting Clips In Front Pillar (Driver)
    G12238177Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's] 

    Fig 15: Disconnecting Connector And Mounting Clips In Front Pillar (Passenger)
    G12238178Courtesy of KIA MOTORS AMERICA, INC.
  30. Remove the drain hose (A).
    Fig 16: Removing Drain Hose
    G12238179Courtesy of KIA MOTORS AMERICA, INC.
  31. After loosening the bolts remove the main crash pad and cowl cross bar assembly (A) together.
    Fig 17: Removing Main Crash Pad And Cowl Cross Bar Assembly
    G12238180Courtesy of KIA MOTORS AMERICA, INC.
  32. Disconnect the heater & blower unit connectors.
    1. Disconnect the Intake actuator connector (A) and then remove the wiring mounting clips.
      Fig 18: Disconnecting Intake Actuator Connector
      G12238181Courtesy of KIA MOTORS AMERICA, INC.
    2. Disconnect the blower motor (A), temperature control actuator (B), mode control actuator (C) connectors and then remove the wiring mounting clips.
      Fig 19: Disconnecting Blower Motor, Temperature Control Actuator, Mode Control Actuator Connectors
      G12238182Courtesy of KIA MOTORS AMERICA, INC.
    3. Disconnect the evaporator temperature sensor (A) field effect transistor air conditioning resistor (B) connectors and then remove the wiring mounting clips.
      Fig 20: Disconnecting Evaporator Temperature Sensor Field Effect Transistor Air Conditioning Resistor Connectors
      G12238183Courtesy of KIA MOTORS AMERICA, INC.
    4. Disconnect the cluster ionizer connector (A) and then remove the wiring mounting clips.
      Fig 21: Disconnecting Cluster Ionizer Connector
      G12238184Courtesy of KIA MOTORS AMERICA, INC.
    5. Remove the heater & blower unit wiring mounting clips (A).
      Fig 22: Removing Heater & Blower Unit Wiring Mounting Clips
      G12238185Courtesy of KIA MOTORS AMERICA, INC.
  33. Remove the mounting clips (A).
    Fig 23: Removing Mounting Clips (1 Of 2)
    G12238186Courtesy of KIA MOTORS AMERICA, INC.
    Fig 24: Removing Mounting Clips (2 Of 2)
    G12238187Courtesy of KIA MOTORS AMERICA, INC.
  34. Loosen the heater and blower unit mounting bolts (A)
    Fig 25: Loosening Heater And Blower Unit Mounting Bolts
    G12238188Courtesy of KIA MOTORS AMERICA, INC.
  35. Remove the heater and blower unit (A) from the crash pad (B) after loosening the mounting nuts.
    Fig 26: Removing Heater And Blower Unit From Crash Pad Mounting Nuts
    G12238189Courtesy of KIA MOTORS AMERICA, INC.
  36. Remove the heater unit mounting clips (A).
  37. Separate the blower unit (B) from the heater unit (C) after loosening the screws (D).
    Fig 27: Separating Blower Unit From Heater Unit Screws
    G12238190Courtesy of KIA MOTORS AMERICA, INC.
    Fig 28: Locating Heater Unit
    G12238191Courtesy of KIA MOTORS AMERICA, INC.
  38. Install in the reverse order of removal.
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