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Home >> Hyundai >> 2020 >> Venue SE, Standard 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 engine cover. (Refer to Engine Mechanical System - "ENGINE 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)

    NOTE:
    • Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
    • When installing, replace with a new O-ring.
    G14702540Courtesy of HYUNDAI MOTOR AMERICA
  6. Press the lock pin and separate the heater hoses (A) from the heater unit.
    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.
    G14702541Courtesy of HYUNDAI MOTOR AMERICA
  7. Loosen the cowl cross member mounting bolts.
    G14702542Courtesy of HYUNDAI MOTOR AMERICA
  8. Remove both sides of the front pillar trim. (Refer to Body - "FRONT PILLAR TRIM ")
  9. Remove the floor console assembly. (Refer to Body - "FLOOR CONSOLE ASSEMBLY ")
  10. Remove the front air duct (A).
    G14702543Courtesy of HYUNDAI MOTOR AMERICA
  11. Remove the cowl side trim. (Refer to Body - "COWL SIDE TRIM ")
  12. Remove the shift lever assembly. (Refer to Automatic Transmission System - "SHIFT LEVER ")
  13. Remove the crash pad lower panel. (Refer to Body - "CRASH PAD LOWER PANEL ")
  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 - "MDPS COLUMN & HOUSING ")
  18. Remove the glove box. (Refer to Body - "GLOVE BOX ")
  19. Disconnect the airbag control module (SRSCM) connector (A).
    G14702544Courtesy of HYUNDAI MOTOR AMERICA
  20. Disconnect the connectors (A) and the mounting clips in the front pillar.

    [LH] 

    G14702545Courtesy of HYUNDAI MOTOR AMERICA

    [RH] 

    G14702546Courtesy of HYUNDAI MOTOR AMERICA
  21. Disconnect the junction box connectors (A).
    G14702547Courtesy of HYUNDAI MOTOR AMERICA
  22. Disconnect the multi box connectors (A).

    [LH] 

    G14702548Courtesy of HYUNDAI MOTOR AMERICA

    [RH] 

    G14702549Courtesy of HYUNDAI MOTOR AMERICA
  23. Disconnect the heater & blower unit connectors.

    [LH] 

    1. Disconnect the PTC heater connector (A).
      G14702550Courtesy of HYUNDAI MOTOR AMERICA
    2. Disconnect the mode actuator connector (A).
    G14702551Courtesy of HYUNDAI MOTOR AMERICA

    [RH] 

    1. Disconnect the blower motor connector (A).
      G14702552Courtesy of HYUNDAI MOTOR AMERICA
    2. Disconnect the temperature control actuator connector (A) and power mosfet connector (B).
      G14702553Courtesy of HYUNDAI MOTOR AMERICA
    3. Loosen the blower unit mounting bolts and drain hose (A).
      G14702554Courtesy of HYUNDAI MOTOR AMERICA
  24. Loosen the bolts and remove the main crash pad and cowl cross bar assembly (A) together.
    G14702555Courtesy of HYUNDAI MOTOR AMERICA
  25. Press the lock pin and disconnect the intake actuator (A).
    G14702556Courtesy of HYUNDAI MOTOR AMERICA
  26. Loosen the heater & blower unit mounting bolt.

    Tightening torque: 

    16.7 - 25.5 N.m (1.9 - 2.6 kgf.m, 12.7 - 18.8 lb-ft)

    G14702557Courtesy of HYUNDAI MOTOR AMERICA
  27. Loosen the mounting nuts and remove the heater & blower unit (A) from the crash pad.

    Tightening torque: 

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

    G14702558Courtesy of HYUNDAI MOTOR AMERICA
  28. Loosen the mounting screw and separate the heater unit (B) from the blower unit (A).
    G14702559Courtesy of HYUNDAI MOTOR AMERICA
  29. Install in the reverse order of removal.
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