Hyundai Elantra: Heater / Evaporator Core Repair procedures

Hyundai Elantra AD (2016-2020) Service Manual / Heating, Ventilation and Air Conditioning / Heater / Evaporator 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 unit lower case (A) after loosening the mounting screws.

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

To intall, reverse the removal procedure.

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

B.	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.

C.	Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.

D.	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.

E.	Apply sealant to the grommets.

F.	Make sure that there is no air leakage.

G.	Charge the system and test its performance.

H.	Do not interchange the inlet and outlet heater hoses and install the hose clamps securely.

PTC Heater Repair procedures

Inspection Operating Logic Test (Manual only) Inspect the PTC operation by confirmation logic as follows. 1. Entering (1) Set the Floor mode and maximum heating position. (2) Turn off the ...

Temperature Control Actuator Components and Components Location

Components Location 1. Temperature control actuator [LH]2. Temperature control actuator [RH] ...

Other information:

Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Component Location 1. Back view camera2. AVN monitor ...

Hyundai Elantra AD (2016-2020) Service Manual: Description and Operation
Description The changed position of the seat by memorizing into the power seat unit with IMS switch controlling the optimal seat position set by the driver can be restored with the IMS switch. It has the function of prohibiting the restoring action during driving and emergent stopping the l ...