Fluid
Repair Procedures
Inspection
Automatic Transmission Fluid (ATF) Level Inspection
Remove the lock switch.
(Refer to "Automatic Transmission Control System - Inhibitor Switch").
Fill 0.7 liter of ATF SP-IV through the ATF filler hole after removing the eyebolt (A).

Start the engine to warm up the ATF.
Using KDS, make sure the ATF temperature is between 50 °C and 60°C (122–140°F).
Slowly move the shift lever from the "P" position to the "D" position, then back to the "P" position. Repeat this sequence two times, then move the shift lever to the "P" position.
Remove the under cover.
(Refer to Engine Mechanical System - "Engine Room Cover")
Raise the vehicle and remove the ATF level plug (A) from the valve body cover.

Check the ATF level.
Normal: ATF flows out in a thin, steady stream.
Excessive (abnormal): More than 0.9 L of ATF flows out within 2 minutes.
Insufficient (abnormal): No fluid flows out.
Install the ATF level plug (A).

Lower the vehicle and install the eyebolt (A).

Install the inhibitor switch.
(Refer to "Automatic Transmission Control System - Inhibitor Switch").
Replacement
Remove the under cover.
(Refer to Engine Mechanical System - "Engine Room Cover")
Remove the ATF drain plug (A), allow the fluid to drain, and then reinstall the drain plug.
Tightening torque: 33.3–43 N·m

Remove the lock switch.
(Refer to "Automatic Transmission Control System - Inhibitor Switch").
Remove the eye bolt (A).

Fill the automatic transmission with approximately 5.0 liters of ATF SP-IV through the ATF filler hole.
Perform the ATF level check procedure.
(Refer to Fluid - Inspection)
Test yourself
A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.