Kia Optima DL3: 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

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.

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

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: License Lamps

Repair procedures Removal 1. Disconnect the negative battery terminal. 2. Remove the lcense lamp (A) by pressing the hook. 3. Disconnect the lcense lamp connector (A).

Kia Optima DL3 2019-2026 Service and Repair Manual: Power Seat Control Switch

Repair procedures Removal 1. Remove the front seat shield outer cover. (Refer to Body - "Front Seat Shield Outer Cover") 2. Remove the power seat control switch (A) by loosening the mounting screws.

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