Hyundai Kona: Heater / Heater Core Repair procedures

Hyundai Kona (OS) 2018-2021 Service Manual / Heating, Ventilation and Air Conditioning / Heater / Heater Core Repair procedures

Replacement

1.	Disconnect the negative (-) battery terminal.

2.	Remove the heater and blower assembly. (Refer to Heater - "Heater Unit")

3.	Remove the heater core cover (A) after loosening the mounting screws.

4.	Pull out the heater core (A) from the heater unit.

To install, reverse the removal procedure.

•	If you're installing a new heater core, add refrigerant oil (PAG OIL).

•	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 or R-1234yf 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.

Heater Unit Repair procedures

Replacement • When prying with a flat-tip screwdriver or use a ...

PTC Heater Description and operation

Description The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of heater core. The PTC heater is an electric heater using a PTC ...

Other information:

Hyundai Kona (OS) 2018-2021 Owners Manual: Opening the tailgate
Make sure the vehicle is in P (Park) and set the parking brake. Then do one of the following: 1. Unlock all doors with the Door Unlock button on your remote key or smart key. Press the tailgate handle button and open the tailgate. 2. Press and hold the Tailgate Unlock button on the remote key or s ...

Hyundai Kona (OS) 2018-2021 Owners Manual: Deadlocks
Some vehicles are equipped with a deadlock system. Deadlocks prevent opening of a door from either inside or outside the vehicle once the deadlocks have been activated providing an additional measure of vehicle security. To lock the vehicle using the deadlock function, the doors must be locked by ...