Kia Stinger: Hydraulic System / ATF Warmer

Kia Stinger CK 2018-2021 Service Manual / Automatic Transmission System / Hydraulic System / ATF Warmer

Description and operation

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

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

Prevents over heating of the transmission oil while the vehicle is moving.

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

Components and components location
Components Location

1. ATF warmer

Repair procedures

Remove the under cover.

(Refer to Engine Mechanical System - "Engine Room Under Cover").


Support the transmission on a jack and then lower the jack slowly after loosening the cross member (A) mounting bolts.


Tightening torque :

58.8 - 73.5 N·m (6.0 - 7.5 kgf·m, 43.4 - 54.2 lb·ft)


Tightening torque :

58.8 - 73.5 N·m (6.0 - 7.5 kgf·m, 43.4 - 54.2 lb·ft)


Separate the coolant hose (A) and remove the ATF warmer (B) after loosening the bolts.

Tightening torque :

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)


Install in the reverse order of removal.


Refill the automatic transmission with fluid.

(Refer to Hydraulic System - "Fluid")


Refill the engine coolant system radiator with coolant.

(Refer to Engine Mechanical System - "Coolant")

SS-A Solenoid Valve (ON/OFF)
Specifications Specifications Item Specification Control type ON/OFF Control pressure kpa (kgf/cm², psi) ...

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