Hyundai Elantra: Automatic Transaxle System / Automatic Transaxle Cooling System

Hyundai Elantra AD (2016-2020) Service Manual / Automatic Transaxle System / Automatic Transaxle Cooling System

Description and Operation

Description

•	Engine coolant is used for circulating heat in order to heat and cool the transaxle oil.

•	Prevents over heating of the transaxle oil while the vehicle is moving.

Coolant Flow

ATF Warmer Description and Operation

Description

•	The ATF warmer is mounted on the valve body cover.

•	Engine coolant is used for circulating heat in order to heat and cool t he transaxle oil.

•	Rapidly elevates the transaxle oil temperature during the initial cold start of the engine.

•	Prevents over heating of the transaxle oil while the vehicle is moving.

•	Transaxle oil warm-up and cooling can be done with a single system.

•	The water coolant and oil are separate in order to exchange heat.

ATF Warmer Components and Components Location

Components Location

1. Automatic transaxle
2.ATF warmer

3. Heater hose & pipe

ATF Warmer Repair procedures

Removal

1.	Remove the under cover. (Refer to Engine Mechanical System - "Engine room under cover")

2.	Loosen the drain plug and drain the engine coolant. (Refer to Cooling System - "Coolant")

3.	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)

Installation

1.	To install, reverse the removal procedure.

2.	Refill the engine with coolant. (Refer to Cooling System - "Coolant")

3.	After fluid level check, refill the automatic transaxle with fluid. (Refer to Hydraulic System - "Fluid")

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