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Home >> Kia >> 2017 >> Forte5 EX >> Repair and Diagnosis >> External Pages >> Different car >> Section 226 (Heater System) >> Heater Unit >> Repair Procedures >> Replacement
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Repair Procedures: Replacement

WARNING: This page is about a different car, the 2017 Kia Niro. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: When prying with a flat-tip screwdriver or a prying trim tool, wrap a protective tape around the related parts and the tool to prevent damage.
  1. Disconnect the negative (-) battery terminal.
  2. Recover the refrigerant with a recovery/recycling/charging station.
    WARNING: If PAG oil mixes into the POE oil of the system, dielectric breakdown may occur due to decreased volumetric resistivity and the A/C compressor may not work.
  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 expansion valve cover (A) after loosening the bolt.

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

    Fig 1: Removing Expansion Valve Cover
    G12336110Courtesy of KIA MOTORS AMERICA, INC.
    NOTE:
    • Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
    • It is mounted to replace the O- ring with a new one when mounting.
  6. Remove the inlet (A) and outlet (B) heater hoses from the heater core.
    Fig 2: Removing Inlet And Outlet Heater Hoses From Heater Core
    G12336111Courtesy of KIA MOTORS AMERICA, INC.
    CAUTION: Engine coolant will run out when the hoses are disconnected; drain it into a clean drip pan. Be sure not to let coolant spill on electrical parts or painted surfaces. If any coolant spills, rinse it off immediately.
  7. Loosen the cowl cross bar assembly mounting bolts (A).
    Fig 3: Loosening Cowl Cross Bar Assembly Mounting Bolts
    G12336112Courtesy of KIA MOTORS AMERICA, INC.
  8. Remove the front seat assemblies on both sides.

    (Refer to Body - "FRONT SEAT ASSEMBLY ")

  9. Remove the floor console.

    (Refer to Body - "FLOOR CONSOLE ASSEMBLY ")

  10. Remove the front pillar trims on both sides.

    (Refer to Body - "FRONT PILLAR TRIM ")

  11. Remove the cowl side trims on both sides.

    (Refer to Body - "COWL SIDE TRIM ")

  12. Remove the crash pad lower panel.

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

  13. Remove the steering column shroud lower panel.

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

  14. Remove the steering wheel.

    (Refer to Steering System - "STEERING WHEEL ")

  15. Remove the multifunction switch.

    (Refer to Body Electrical System - "MULTI-FUNCTION SWITCH ")

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

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

  17. Remove the front door scuff trim.

    (Refer to Body - "DOOR SCUFF TRIM ")

  18. Remove the shift lever assembly.

    (Refer to DCT (Dual Clutch Transmission) System - "SHIFT LEVER ")

  19. Disconnect the airbag control module (SRSCM) connector (A).
    Fig 4: Disconnecting Airbag Control Module (SRSCM) Connector
    G12336113Courtesy of KIA MOTORS AMERICA, INC.
  20. Remove the rear duct (A).

    [LH] 

    Fig 5: Removing Rear Duct (LH)
    G12336114Courtesy of KIA MOTORS AMERICA, INC.

    [RH] 

    Fig 6: Removing Rear Duct (RH)
    G12336115Courtesy of KIA MOTORS AMERICA, INC.
  21. Put away the floor carpet (A).

    [Driver Side] 

    Fig 7: Putting Floor Carpet - Driver Side
    G12336116Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger Side] 

    Fig 8: Putting Floor Carpet - Passenger Side
    G12336117Courtesy of KIA MOTORS AMERICA, INC.
  22. Remove the mounting bolt and remove the rear heating ducts (A).

    [Driver Side] 

    Fig 9: Removing Rear Heating Ducts - Driver Side
    G12336118Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger Side] 

    Fig 10: Removing Rear Heating Ducts - Passenger Side
    G12336119Courtesy of KIA MOTORS AMERICA, INC.
  23. Disconnect the passenger compartment junction box connectors (A).
    Fig 11: Disconnecting Passenger Compartment Junction Box Connectors
    G12336120Courtesy of KIA MOTORS AMERICA, INC.
  24. Disconnect the multi box connectors (A).

    [LH] 

    Fig 12: Disconnecting Multi Box Connectors (LH)
    G12336121Courtesy of KIA MOTORS AMERICA, INC.

    [RH] 

    Fig 13: Disconnecting Multi Box Connectors (RH)
    G12336122Courtesy of KIA MOTORS AMERICA, INC.
  25. Disconnect the connector (A) and the mounting clips in the front pillar.

    [LH] 

    Fig 14: Disconnecting Connector And Mounting Clips In Front Pillar (LH)
    G12336123Courtesy of KIA MOTORS AMERICA, INC.

    [RH] 

    Fig 15: Disconnecting Connector And Mounting Clips In Front Pillar (RH)
    G12336124Courtesy of KIA MOTORS AMERICA, INC.
  26. Remove the drain hose (A).
    Fig 16: Removing Drain Hose
    G12336125Courtesy of KIA MOTORS AMERICA, INC.
  27. After loosening the bolts, remove the main crash pad and cowl cross bar assembly (A) altogether.

    [LH] 

    Fig 17: Removing Main Crash Pad And Cowl Cross Bar Assembly (LH)
    G12336126Courtesy of KIA MOTORS AMERICA, INC.

    [RH] 

    Fig 18: Removing Main Crash Pad And Cowl Cross Bar Assembly (RH)
    G12336127Courtesy of KIA MOTORS AMERICA, INC.
  28. Disconnect the heater & blower unit connectors.
    1. Disconnect the intake actuator connector (A).
      Fig 19: Disconnecting Intake Actuator Connector
      G12336128Courtesy of KIA MOTORS AMERICA, INC.
    2. Disconnect the mode control actuator (A) and auto defogging actuator (B) connectors, and then remove the wiring fixing clip.
      Fig 20: Disconnecting Mode Control Actuator And Auto Defogging Actuator Connectors
      G12336129Courtesy of KIA MOTORS AMERICA, INC.
    3. Disconnect the temperature control actuator (A), evaporator temperature sensor (B) and PWM blower module (C) connectors, and then remove the wiring mounting clips.
      Fig 21: Disconnecting Temperature Control Actuator, Evaporator Temperature Sensor And PWM Blower Module Connectors
      G12336130Courtesy of KIA MOTORS AMERICA, INC.
    4. Disconnect the temperature control actuator (A), and evaporator temperature sensor (B) connectors, and then remove the wiring fixing clip.
      Fig 22: Disconnecting Temperature Control Actuator And Evaporator Temperature Sensor Connectors
      G12336131Courtesy of KIA MOTORS AMERICA, INC.
    5. Remove the blower motor connector (A).
      Fig 23: Removing Blower Motor Connector
      G12336132Courtesy of KIA MOTORS AMERICA, INC.
  29. Loosen the heater & blower unit mounting bolt (A).
    Fig 24: Loosening Heater & Blower Unit Mounting Bolt
    G12336133Courtesy of KIA MOTORS AMERICA, INC.
  30. Loosen the mounting nuts and remove the heater and blower units (A) from the crash pad.
    Fig 25: Removing Heater And Blower Units From Crash Pad
    G12336134Courtesy of KIA MOTORS AMERICA, INC.
  31. Separate the blower unit (B) from the heater unit (A) after loosening the screws.
    Fig 26: Separating Blower Unit From Heater Unit (1 Of 3)
    G12336135Courtesy of KIA MOTORS AMERICA, INC.
    Fig 27: Separating Blower Unit From Heater Unit (2 Of 3)
    G12336136Courtesy of KIA MOTORS AMERICA, INC.
    Fig 28: Separating Blower Unit From Heater Unit (3 Of 3)
    G12336137Courtesy of KIA MOTORS AMERICA, INC.
  32. install in the reverse order of removal
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