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Hyundai Azera: Heater Core Repair procedures - Heater - Heating,Ventilation, Air Conditioning - Hyundai Azera 2011-2025 Service ManualHyundai Azera: Heater Core Repair procedures

Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Service Manual / Heating,Ventilation, Air Conditioning / Heater / Heater Core 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.
4.
Remove the heater & blower assembly.
(Refer to Heater - "Heater Unit")
5.
Remove the blower unit (B) from heater unit after loosening 3 screws.

6.
Loosen the mounting screw and then remove the heater core cover (A).

7.
Remove the heater core (A) from heater unit.

   
•
Be careful that the inlet and outlet pipe are not bent during heater core removal / installation.
8.
Installation is the reverse order of removal
   
-
If you're installing a new evaporator, add refrigerant oil (ND-OIL8).
-
Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the right O-rings for R-134a to avoid leakage.
-
Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.
-
Do not spill the refrigerant oil on the vehicle ; it may damage the paint ; if the refrigerant oil contacts the paint, wash it off immediately
-
Apply sealant to the grommets.
-
Make sure that there is no air leakage.
-
Charge the system and test its performance.
-
Do not interchange the inlet and outlet heater hoses and install the hose clamps securely.
-
Refill the cooling system with engine coolant
Heater Unit 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 coola ...

Evaporator Core 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 coola ...

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