Repair Procedures: Replacement

WARNING: This page is about a different car, the 2017 Hyundai Elantra. 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.

Disconnect the negative (-) battery terminal.
Recover the refrigerant with a recovery/recycling/charging station.
When the engine is cool, drain the engine coolant from the radiator.
(Refer to Engine Mechanical System - "COOLANT ")
Remove the cowl top cover.
(Refer to Body - "COWL TOP COVER ")
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)

Fig 1: Locating Expansion Valve With Bolts
Courtesy of HYUNDAI MOTOR AMERICA
NOTE:
- Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.
- When installing, replace with a new O-ring.
Disconnect the heater hoses (A) from the heater unit.

Fig 2: Locating Heater Hoses
Courtesy of HYUNDAI MOTOR AMERICA
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.
Loosen the cowl cross member mounting bolts.

Fig 3: Cowl Cross Member Mounting Bolts
Courtesy of HYUNDAI MOTOR AMERICA
Remove the floor console assembly.
(Refer to Body - "FLOOR CONSOLE ASSEMBLY ")
Remove the crash pad lower panel.
(Refer to Body - "CRASH PAD LOWER PANEL ")
Remove both sides of the front pillar trim.
(Refer to Body - "FRONT PILLAR TRIM ")
Remove the cowl side trim.
(Refer to Body - "COWL SIDE TRIM ")
Remove the steering column shroud lower panel.
(Refer to Body - "STEERING COLUMN SHROUD PANEL ")
Remove the steering wheel.
(Refer to Steering System - "STEERING WHEEL ")
Remove the multifunction switch.
(Refer to Body Electrical System - "MULTIFUNCTION SWITCH ")
Lower the steering column after loosening the mounting bolts.
(Refer to Steering System - "MOTOR DRIVEN POWER STEERING ")
Remove the shift lever assembly.
(Refer to Automatic Transmission System - "SHIFT LEVER ")
Remove the crash pad under cover [RH] (A).

Fig 4: Locating Crash Pad Under Cover (RH)
Courtesy of HYUNDAI MOTOR AMERICA
Remove the rear air ducts (A).

Fig 5: Locating Rear Air Ducts
Courtesy of HYUNDAI MOTOR AMERICA
Separate the floor carpet (A) to obtain space for removing the rear heating duct.

Fig 6: Locating Floor Carpet
Courtesy of HYUNDAI MOTOR AMERICA
Loosen the mounting nuts and remove the front air duct (A).

Fig 7: Locating Front Air Duct With Mounting Nuts
Courtesy of HYUNDAI MOTOR AMERICA
Disconnect the airbag control module (SRSCM) connector (A).

Fig 8: Locating Airbag Control Module Connector
Courtesy of HYUNDAI MOTOR AMERICA
Disconnect the junction box connectors (A).

Fig 9: Locating Junction Box Connectors
Courtesy of HYUNDAI MOTOR AMERICA
Disconnect the multi box connectors (A).
[Driver's side]

Fig 10: Locating Multi Box Connectors (Driver's Side)
Courtesy of HYUNDAI MOTOR AMERICA

[Passenger's side]

Fig 11: Locating Multi Box Connectors (Passenger's Side)
Courtesy of HYUNDAI MOTOR AMERICA
Disconnect the connectors (A) and the mounting clips in the front pillar.
[Driver's side]

Fig 12: Locating Front Pillar Connector (Driver's Side)
Courtesy of HYUNDAI MOTOR AMERICA

[Passenger's side]

Fig 13: Locating Front Pillar Connector (Passenger's Side)
Courtesy of HYUNDAI MOTOR AMERICA
Remove the drain hose (A).

Fig 14: Locating Drain Hose
Courtesy of HYUNDAI MOTOR AMERICA
Loosen the cowl blower unit mounting bolts.
Tightening torque:

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

Fig 15: Cowl Blower Unit Mounting Bolts
Courtesy of HYUNDAI MOTOR AMERICA
After loosening the bolts and nuts remove the main crash pad and cowl cross bar assembly (A) together.

Fig 16: Locating Main Crash Pad And Cowl Cross Bar Assembly
Courtesy of HYUNDAI MOTOR AMERICA
Disconnect the heater & blower unit connectors.
1. Disconnect the auto defogging actuator connector (A), intake actuator connector (B) and remove the wiring mounting clips.
  
  Fig 17: Locating Auto Defogging Actuator Connector And Intake Actuator Connector
  Courtesy of HYUNDAI MOTOR AMERICA
2. Disconnect the driver's temperature control actuator (A), mode control actuator (B) and remove the wiring mounting clips.
  
  Fig 18: Locating Driver's Temperature Control Actuator And Mode Control Actuator Connector
  Courtesy of HYUNDAI MOTOR AMERICA
3. Disconnect the blower motor connector (A) and remove the wiring mounting clips.
  
  Fig 19: Locating Blower Motor Connector
  Courtesy of HYUNDAI MOTOR AMERICA
4. Disconnect the passenger's side temperature control actuator (A), evaporator temperature sensor connector (B), power mosfet connector (C) and remove the wiring mounting clips.
Fig 20: Locating Passenger's Side Temperature Control Actuator, Evaporator Temperature Sensor Connector And Power Mosfet Connector
Courtesy of HYUNDAI MOTOR AMERICA
Loosen the heater & blower unit mounting bolt (A).

Fig 21: Locating Heater & Blower Unit Mounting Bolt
Courtesy of HYUNDAI MOTOR AMERICA
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)

Fig 22: Locating Heater And Blower Unit
Courtesy of HYUNDAI MOTOR AMERICA
Separate the blower unit (A) from the heater unit (B) after loosening the screws.

Fig 23: Heater Unit Screws
Courtesy of HYUNDAI MOTOR AMERICA

Fig 24: Blower Unit And Heater Unit
Courtesy of HYUNDAI MOTOR AMERICA
To install, reverse the removal procedure.