Kia Optima DL3: Automatic Transaxle System / Hydraulic System

Kia Optima DL3 2019-2026 Service and Repair Manual / Automatic Transaxle System / Hydraulic System

Components and components location

Components Location

1. Automatic transaxle 2. Oil filter 3. Mechanical oil pump	4. Converter housing 5. Torque converter

Description and operation

Description

The components of the hydraulic system

•	Automatic Transaxle Fluid (ATF)

•

Oil pump

•	Oil filter

•	Valve body

Operation

1.	The oil pump is powered by the engine.

2.	ATF passes through the oil filter and gets distributed along the oil channels.

3.	TCM controls the hydraulic pressure using solenoid valves and controls clutch and brake operations.

Oil-pressure characteristics input

Solenoid valve oil-pressure characteristics input procedure

1.	Perform the oil-pressure characteristics input procedure using the KDS.

2.	Click the "OK" button after checking the condition.

3.	Click the "OK" button after selecting the replaced solenoid valve.

4.	Check the code that was recorded before installing the new solenoid valve.

5.	Click the "OK" button after inputting oil pressure characteristics for the replaced solenoid valve.

❮Automatic Transaxle System

Components and components location Components 1. Transaxle Support Braket 5. Roll Rod Support Bracket 2.

Fluid❯

Repair procedures Inspection Automatic Transaxle Fluid (ATF) Level Check When checking the ATF level, be careful not to allow foreign substance (like dust) to enter through the filler hole.

Other information:

Kia Optima DL3 2019-2026 Service and Repair Manual: Power Door Mirror Actuator

Schematic diagrams Connector and Terminal Function Repair procedures Inspection 1. Disconnect the negative battery terminal. 2. Remove the front door trim. (Refer to Body - "Front Door Trim") 3.

Kia Optima DL3 2019-2026 Service and Repair Manual: Heater Core

Repair procedures Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower assembly. (Refer to Heater - "Heater Unit") 3. Loosen the mounting screws and remove the heater core cover (A).