Hyundai Santa Fe: Automatic Transaxle Cooling System / ATF Warmer. Repair procedures

Hyundai Santa Fe (TM) 2019-2024 Service Manual / Automatic Transaxle System (SBC) / Automatic Transaxle Cooling System / ATF Warmer. Repair procedures

Removal

•	Be careful not to damage the parts located under the vehicle (floor under cover, fuel filter, fuel tank and canister) when raising the vehicle using the lift. (Refer to General Information - "Lift and Support Points")

1.	Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Air Cleaner")

2.	Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

3.	Loosen the drain plug (A) and then drain the coolant.

4.	Separate the clamp and then removing the ATF cooler hose (A).

5.	Loosen the ATF wamer upper mounting bolts (A).

6.	Separate the clamp and then removing the coolant hose (A).

7.	Loosen the ATF wamer lower mounting bolts and then removing the ATF warmer (A).

Installation

•	Carefully install the clamp not to damage the hose.

•	Align marking of pipe, marking of hose, and matching color each other.

1.	To install, reverse the removal procedure.

Check the ATF level after refilling the automatic transaxle with fluid.

(Refer to Automatic Transaxle System - "Automatic Transaxle Fluid")

1)	After ATF level check or exchange, be sure to remove residual ATF on transaxle case. (Be especially sure to remove residual ATF between automatic transaxle case and valve body cover)

2)	After installing the valve body cover, make sure to check the oil leakage at the connection area with the engine ON.

3.	Refil the coolant. (Refer to Engine Mechanical System - "Coolant")

ATF Warmer. Description and operation

Description The ATF warmer is mounted on the valve body cover to reduce oil viscosity friction by increasing oil temperature under cold condition, which in turn improves fuel efficiency...

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