Hyundai Elantra: Automatic Transaxle Cooling System / ATF Warmer Repair procedures

Remove the under cover.
(Refer to Engine Mechanical System - "Engine room under cover")
Loosen the drain plug and drain the engine coolant.
(Refer to Cooling System - "Coolant")
Disconnect the cooling hose (A) after separated the clamp.

Disconnect the hose (A) after removing the automatic transaxle fluid cooler hose clamp.

Carefully install the clamp not to damage the hose.
Install the clamp in a correct direction not to be interfered with other parts.
After the installation, start the engine and then check if there are any leakages from the hose.
Remove the ATF warmer (A) from the valve body cover.

Tightening torque:
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)

To install, reverse the removal procedure.
Refill the engine with coolant.
(Refer to Cooling System - "Coolant")
After fluid level check, refill the automatic transaxle with fluid.
(Refer to Hydraulic System - "Fluid")
ATF Warmer Components and Components Location
Components Location 1. Automatic transaxle2.ATF warmer3. Heater hose & pipe ...

Automatic Transaxle Control System

Other information:

Hyundai Elantra AD (2016-2020) Owners Manual: Wheel Alignment and Tire Balance
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Hyundai Elantra AD (2016-2020) Service Manual: ESC Control Unit Repair procedures
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