Hyundai Elantra: 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.

4.
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.
5.
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")
Other information:

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