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Home › Kia › 2019 › Sedona L › Repair and Diagnosis › External Pages › Different car › Section 19 (Heater System) › Heater Unit › Repair Procedures › Replacement

Repair Procedures: Replacement

WARNING: This page is about a different car, the 2020 Kia Sedona. However, it is still accessible from the selected car via links, so may be relevant.
  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 Surge Tank.

    (Refer to Engine Mechanical System - "SURGE TANK ")

  6. Remove the expansion valve cover (A) after loosening the nut.

    Tightening torque:  6.9 ~ 10.8 N.m (0.7 ~ 1.1 kgf.m, 5.1 ~ 8.0 lb-ft)

    G13047720Courtesy of KIA MOTORS AMERICA, INC.
  7. 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 lb-ft)

    G13047721Courtesy of KIA MOTORS AMERICA, INC.
  8. Remove the expansion valve flange (A) after loosening the screws.
    G13047722Courtesy 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).
  9. Disconnect the air breather hose (A).
    G13047723Courtesy of KIA MOTORS AMERICA, INC.
  10. Remove the intake hose (A) after loosening the clips.
    G13047724Courtesy of KIA MOTORS AMERICA, INC.
  11. Disconnect the heater hose (A).
    G13047725Courtesy of KIA MOTORS AMERICA, INC.
  12. Remove the inlet and outlet heater hoses flange (A) after loosening the nuts (B).
    G13047726Courtesy 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.
  13. Loosen the cowl cross member mounting bolts (A).
    G13047727Courtesy of KIA MOTORS AMERICA, INC.
  14. Remove both sides of front seat assembly.

    (Refer to Body - "FRONT SEAT ASSEMBLY ")

  15. Remove the floor console.

    (Refer to Body - "FLOOR CONSOLE ")

  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 crash pad center lower panel.

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

  19. Remove the steering column shroud lower panel.

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

  20. Remove the steering wheel.

    (Refer to Steering System - "STEERING WHEEL ")

  21. Remove the multifunction switch.

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

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

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

  23. Remove the front door scuff trim.

    (Refer to Body - "DOOR SCUFF TRIM ")

  24. Remove the rear duct cover (A) after loosening the screws.
    G13047728Courtesy of KIA MOTORS AMERICA, INC.
  25. Separate the radiator assembly (A) to obtain space for remove the air guard.

    [Driver's] 

    G13047729Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's] 

    G13047730Courtesy of KIA MOTORS AMERICA, INC.
  26. Remover the rear air duct (A) after detaching the clips.

    [Driver's] 

    G13047731Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's] 

    G13047732Courtesy of KIA MOTORS AMERICA, INC.
  27. Remove the select cable (A).
    G13047733Courtesy of KIA MOTORS AMERICA, INC.
    NOTE: Remove the cable after pushing the locking pin in the direction of the arrow.
    G13047734Courtesy of KIA MOTORS AMERICA, INC.
  28. Remove the shift lever assembly (A) after loosening the bolts.
    G13047735Courtesy of KIA MOTORS AMERICA, INC.
  29. Disconnect the airbag control module (SRSCM) connector (A).
    G13047736Courtesy of KIA MOTORS AMERICA, INC.
  30. Disconnect the passenger compartment junction box connectors (A).
    G13047737Courtesy of KIA MOTORS AMERICA, INC.
  31. Disconnect the multi box connectors (A).

    [Driver's] 

    G13047738Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's] 

    G13047739Courtesy of KIA MOTORS AMERICA, INC.
  32. Disconnect the connector (A) and the mounting clips (B) in the front pillar.

    [Driver's] 

    G13047740Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's] 

    G13047741Courtesy of KIA MOTORS AMERICA, INC.
  33. Remove the drain hose (A).
    G13047742Courtesy of KIA MOTORS AMERICA, INC.
  34. After loosening the nuts and bolts, remove the main crash pad and cowl cross bar assembly (A) altogether.

    [LH] 

    G13047743Courtesy of KIA MOTORS AMERICA, INC.

    [RH] 

    G13047744Courtesy of KIA MOTORS AMERICA, INC.
  35. Disconnect the heater & blower unit connectors.
    1. Remove the BCM unit (A) after loosening the nuts.
      G13047745Courtesy of KIA MOTORS AMERICA, INC.
    2. Disconnect the blower motor connector (A) and then remove the wiring mounting clip (B).
      G13047746Courtesy of KIA MOTORS AMERICA, INC.
    3. Detach the photo sensor mounting clips (A).
      G13047747Courtesy of KIA MOTORS AMERICA, INC.
    4. Remove the smart key unit (A) after loosening the bolt.
      G13047748Courtesy of KIA MOTORS AMERICA, INC.
    5. Disconnect the temperature control actuator (A) and mode control actuator (B) connectors, and then remove the wiring mounting clips.
      G13047749Courtesy of KIA MOTORS AMERICA, INC.
    6. Disconnect the evaporator temperature sensor (A), FET (B) and Temperature actuator (C) connectors and then remove the wiring mounting clips.
      G13047750Courtesy of KIA MOTORS AMERICA, INC.
    7. Disconnect the intake actuator (A), cluster ionizer (B) and Auto defogging actuator (C) connectors and then remove the wiring mounting clips.
      G13047751Courtesy of KIA MOTORS AMERICA, INC.
    8. Detach the main connector mounting clip (A).
    G13047752Courtesy of KIA MOTORS AMERICA, INC.
  36. Loosen the heater & blower unit mounting bolts (A).
    G13047753Courtesy of KIA MOTORS AMERICA, INC.
  37. Remove the heater and blower unit (A) from the crash pad after loosening the mounting nuts.
    G13047754Courtesy of KIA MOTORS AMERICA, INC.
  38. Separate the blower unit (B) from the heater unit (A) after loosening the screws.
    G13047755Courtesy of KIA MOTORS AMERICA, INC.
    G13047756Courtesy of KIA MOTORS AMERICA, INC.
  39. Install in the reverse order of removal.
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