Hyundai Elantra: 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.

5.
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: ESC Control Unit Repair procedures
Removal 1. Turn the ignition switch OFF and then disconnect the negative (-) battery cable. 2. Pull up the lock of the HECU connector (A) , then disconnect the connector. 3. Remove the brake fluid from the master cylinder reservoir with a syringe.     • Be sure to ...

Hyundai Elantra AD (2016-2020) Service Manual: Occupant Classification System (OCS) Description and Operation
Description In order to make normal activation of airbag system, SRSCM detects DTC(s) for the Occupant Classification System (OCS). If the seat is occupied, OCS detects passenger presences status and send signal to SRSCM via CAN. SRSCM recognizes the signal as 2(two) different classifica ...

© 2018-2024 www.helantraad.com