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Home >> Kia >> 2019 >> Forte S >> Repair and Diagnosis >> External Pages >> Different car >> Section 172 (Heater System) >> Heater Unit >> Repair Procedures >> Replacement
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Repair Procedures: Replacement

WARNING: This page is about a different car, the 2024 Kia Forte. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply protective tape around the related parts, to prevent damage.
  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.

    G 2.0 MPI NU (Refer to Engine Mechanical System - "COOLANT ")

    G 1.6 T-GDI GAMMA (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: 

    8.8-13.7 N m (0.9 - 1.4 kgf m, 6.5 - 10.1 lb ft)

    G14557171Courtesy 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.
  6. After loosening the mounting screws, remove the evaporator core from mat (A).
    G14557172Courtesy of KIA MOTORS AMERICA, INC.
  7. Disconnect the heater hoses (A) from the heater unit.
    G14557173Courtesy 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.
  8. After loosening the mounting nuts, remove the heater hose from mat (A).
    G14557174Courtesy of KIA MOTORS AMERICA, INC.
  9. Loosen the cowl cross member mounting bolts (A).

    Tightening torque: 

    16.7-25.5 N m (1.7-2.6 kgf m, 12.3 - 18.8 lb ft)

    G14557175Courtesy of KIA MOTORS AMERICA, INC.
  10. Remove the floor console assembly.

    (Refer to Body - "FLOOR CONSOLE ASSEMBLY ")

  11. Remove the crash pad lower panel.

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

  12. Remove both sides of the front pillar trim.

    (Refer to Body - "FRONT PILLAR TRIM ")

  13. Remove the cowl side trim.

    (Refer to Body - "COWL SIDE TRIM ")

  14. Remove the steering column shroud lower panel.

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

  15. Remove the steering wheel.

    (Refer to Steering System - "STEERING WHEEL ")

  16. Remove the multifunction switch.

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

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

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

  18. Remove the shift lever assembly.

    G 2.0 MPI NU (Refer to Intelligent Variable Transmission (IVT) System - "SHIFT LEVER ")

    G 1.6 T-GDI GAMMA (Refer to Manual Transaxle System - "SHIFT LEVER ")

    G 1.6 T-GDI GAMMA (Refer to Double Clutch Transmission Control System - "SHIFT LEVER ")

  19. Separate the floor carpet (A) to obtain space for removing the rear heating duct.
    G14557176Courtesy of KIA MOTORS AMERICA, INC.
  20. Remove the side floor pad (A).
    G14557177Courtesy of KIA MOTORS AMERICA, INC.
  21. Remove the rear heating duct (A).
    G14557178Courtesy of KIA MOTORS AMERICA, INC.
  22. Disconnect the blower motor connector (A) and remove the wiring mounting clips.
    G14557179Courtesy of KIA MOTORS AMERICA, INC.
  23. Disconnect the airbag control module (SRSCM) connector (A).
    G14557180Courtesy of KIA MOTORS AMERICA, INC.
  24. Disconnect the junction box connectors (A).
    G14557181Courtesy of KIA MOTORS AMERICA, INC.
  25. Disconnect the multi box connectors (A).

    [Driver's side] 

    G14557182Courtesy of KIA MOTORS AMERICA, INC.
    G14557183Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's side] 

    G14557184Courtesy of KIA MOTORS AMERICA, INC.
  26. Disconnect the connectors (A) and the mounting clips in the front pillar.

    [Driver's side] 

    G14557185Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's side] 

    G14557186Courtesy of KIA MOTORS AMERICA, INC.
  27. Remove the drain hose (A).
    G14557187Courtesy of KIA MOTORS AMERICA, INC.
  28. After loosening the bolts and nuts remove the main crash pad and cowl cross bar assembly (A) together.

    Tightening torque

    • Cowl crossbar mount: 16.7 - 25.5 N m (1.7 - 2.6 kgf m, 12.3 - 18.8 lb ft)
    • Blower motor low mount: 3.9 - 5.9 N m (0.4 - 0.6 kgf m, 2.9 - 4.3 lb ft)

    [LH] 

    G14557188Courtesy of KIA MOTORS AMERICA, INC.

    [RH] 

    G14557189Courtesy of KIA MOTORS AMERICA, INC.
  29. Disconnect the heater & blower unit connectors.
    1. Disconnect the integrated body control unit connector (A).
      G14557190Courtesy of KIA MOTORS AMERICA, INC.
    2. Disconnect the auto defogging actuator connector (A), intake actuator connector (B) and remove the wiring mounting clips.
      G14557191Courtesy of KIA MOTORS AMERICA, INC.
    3. Disconnect the passenger's side temperature control actuator (B), evaporator temperature sensor connector (C), power mosfet connector (A) and remove the wiring mounting clips.
      G14557192Courtesy of KIA MOTORS AMERICA, INC.
    4. Disconnect the driver's temperature control actuator (A), mode control actuator (B) and remove the wiring mounting clips.
    G14557193Courtesy of KIA MOTORS AMERICA, INC.
  30. Remove the heater & blower unit (A) from the crash pad after loosening the mounting nuts and bolts.

    Tightening torque: 

    3.9 - 5.9 N m (0.4 - 0.6 kgf m, 2.9 - 4.3 lb ft)

    G14557194Courtesy of KIA MOTORS AMERICA, INC.
  31. Remove the integrated body control unit (A).

    Tightening torque: 

    6.9 - 9.8 N m (0.7 - 1.0 kgf m, 5.1 - 7.2 lb ft)

    G14557195Courtesy of KIA MOTORS AMERICA, INC.
  32. Separate the blower unit (A) from the heater unit after loosening the screws.

    [Front] 

    G14557196Courtesy of KIA MOTORS AMERICA, INC.

    [Rear] 

    G14557197Courtesy of KIA MOTORS AMERICA, INC.
    G14557198Courtesy of KIA MOTORS AMERICA, INC.
  33. To install, reverse the removal procedure.
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