Hyundai Equus Manuals

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 ...

See also:

Blower Motor Repair procedures
Inspection 1. Connect the battery voltage and check the blower motor rotation. 2. If the blower motor voltage is not operated well, substitute with a known-good blower motor and check for prop ...

Vehicle identification number (VIN)
The vehicle identification number (VIN) is the number used in registering your car and in all legal matters pertaining to its ownership, etc. The number is punched on the engine compartment bulkhe ...

Engine compartment
1. Engine oil dipstick 2. Engine oil filler cap 3. Engine coolant reservoir 4. Radiator cap 5. Brake fluid reservoir 6. Windshield washer fluid reservoir 7. Air cleaner 8. Positive battery te ...

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