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Home › Kia › 2023 › Soul EX › Repair and Diagnosis › External Pages › Different car › Section 18 (Heater System) › Heater Unit › Repair Procedures › Replacement

Repair Procedures: Replacement

WARNING: This page is about a different car, the 2025 Kia Soul. 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.

    (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)

    G15717280Courtesy 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. Disconnect the heater hoses (A) from the heater unit.
    G15717281Courtesy 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 member mounting bolts.

    Tightening torque: 

    21.6 - 29.4 N.m (2.2 - 3.0 kgf.m, 15.9 - 21.7 lb.ft)

    G15717282Courtesy of KIA MOTORS AMERICA, INC.
  8. Remove the floor console assembly.

    (Refer to Body - "FLOOR CONSOLE ASSEMBLY ")

  9. Remove the crash pad lower panel.

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

  10. Remove both sides of the front pillar trim.

    (Refer to Body - "FRONT PILLAR TRIM ")

  11. Remove the front door scuff trim.

    (Refer to Body - "DOOR SCUFF TRIM ")

  12. Remove the steering column shroud lower panel.

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

  13. Remove the steering wheel.

    (Refer to Steering System - "STEERING WHEEL ")

  14. Remove the multifunction switch.

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

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

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

  16. Remove the rear air duct (A).
    G15717283Courtesy of KIA MOTORS AMERICA, INC.
  17. Separate the floor carpet (A) to obtain space for removing the rear heating duct.
    G15717284Courtesy of KIA MOTORS AMERICA, INC.
  18. Remove the front air duct (A).
    G15717285Courtesy of KIA MOTORS AMERICA, INC.
  19. Disconnect the airbag control module (SRSCM) connector (A).
    G15717286Courtesy of KIA MOTORS AMERICA, INC.
  20. Disconnect the junction box connectors (A).
    G15717287Courtesy of KIA MOTORS AMERICA, INC.
  21. Disconnect the multi box connectors (A).

    [Driver's side] 

    G15717288Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's side] 

    G15717289Courtesy of KIA MOTORS AMERICA, INC.
  22. Disconnect the connectors (A) and the mounting clips in the front pillar.

    [LH] 

    G15717290Courtesy of KIA MOTORS AMERICA, INC.

    [RH] 

    G15717291Courtesy of KIA MOTORS AMERICA, INC.
  23. Loosen the blower unit mounting bolts.
    G15717292Courtesy of KIA MOTORS AMERICA, INC.
  24. Remove the drain hose (A).
    G15717293Courtesy of KIA MOTORS AMERICA, INC.
  25. After loosening the bolts and nuts remove the main crash pad and cowl cross bar assembly (A) together.
    G15717294Courtesy of KIA MOTORS AMERICA, INC.
    G15717295Courtesy of KIA MOTORS AMERICA, INC.
  26. Disconnect the heater & blower unit connectors.

    [Driver's side] 

    1. Disconnect the connector (A) connected to the heater unit and remove the wiring clip.
    G15717296Courtesy of KIA MOTORS AMERICA, INC.

    [Passenger's side] 

    1. Disconnect the connector (A) connected to the heater unit and remove the wiring clip.
      G15717297Courtesy of KIA MOTORS AMERICA, INC.
    2. Disconnect the intake actuator connector (A) remove the wiring mounting clips.
      G15717298Courtesy of KIA MOTORS AMERICA, INC.
    3. Disconnect the blower motor connector (A).
    G15717299Courtesy of KIA MOTORS AMERICA, INC.
  27. Remove the heater and blower unit (A) from the crash pad after loosening the mounting nuts.

    Tightening torque: 

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

    G15717300Courtesy of KIA MOTORS AMERICA, INC.
    G15717301Courtesy of KIA MOTORS AMERICA, INC.
  28. Separate the blower unit (A) from the heater unit (B) after loosening the screws.
    G15717302Courtesy of KIA MOTORS AMERICA, INC.
  29. Install in reverse order of removal.
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