1.Disconnect the negative (-) battery terminal.
2.Remove the heater and blower assembly.(Refer to Heater - "Heater Unit")
3.Loosen the mounting screws and remove the heater core cover (A).

4.Separate the heater core (A) from the heater unit.


5.Install in the reverse order of removal.
• Refill the cooling system with engine coolant.
• Do not interchange the inlet and outlet heater hoses and install the hose clamps securely.
• Make sure that there is no air leakage.
• Charge the system and test its performance.
Heater Unit
Evaporator CoreHyundai Tucson (NX4) 2022-2026 Owner's Manual: Towing a trailer - Maximum towing limits
The following table indicates the maximum trailer weight for your vehicle. Do
not
exceed the maximum allowable trailer weight. The maximum trailer weight includes
the weight of the trailer, any cargo, and equipment or items attached to the
trailer.
The towing load in excess of these limits ...
Hyundai Tucson (NX4) 2022-2026 Service Manual: Repair procedures
- Refrigerant System Service Basics (R-134a)
Refrigerant Recovery
Use only service equipment that is U.L-listed and is certified to meet
the requirements of SAE J2210 to remove HFC-134a(R-134a) from the air
conditioning system.
• Air conditioning refrigerant or lubrican ...