Kia Optima: Replacement - Fluid. Repair procedures - Hydraulic System - Automatic Transaxle System - Kia Optima TF 2011-2026 Service ManualKia Optima: Replacement

ATF of 6 speed automatic transaxle doesn’t need to be replaced. If the vehicle is used severely in business or personal use, replace ATF every 60,000 miles.

Severe usage is defined as

• Driving in rough road (Bumpy, Gravel, Snowy, Unpaved road, etc)
• Driving in mountain road, ascent/descent
• Repetition of short distance driving
• More than 50% operation in heavy city traffic during hot weather above 32°C(89.6°F) .
• Police, Taxi, Commercial type operation or trailer towing, etc
1. Remove the drain plug (A) and reinstall the drain plug after draining ATF totally.


Drain plug tightening torque:

34.3 ~ 44.1 N.m (3.5 ~ 4.5 kgf.m, 25.3 ~32.6 lb-ft)


The gasket of the drain plug use new one.
2. Fill the oil about 5 liters through eyebolt.
3. Check the oil level. (Refer to "Hydraulic system (Fluid)" in this group)

Service Adjustment Procedure
Oil level Check A check of ATF level is not normally required during scheduled services. If an oil leak is found, perfo ...

Valve Body. Description and Operation
Description The valve body is essential to automatic transaxle control and consists of various valves used to control the oil feed from the oil pump. Specifically, these valves consist of pressur ...

See also:

Airbag Warning Label (sunvisor)
To remind you of the dangers of the airbag, airbag warning labels which are now required by the U.S. National Highway Traffic Safety Administration (NHTSA) are adhered to the driver’s and pass ...

Fan speed control
The ignition switch must be in the ON position for fan operation. The fan speed control knob allows you to control the fan speed of the air flowing from the ventilation system. To change the fan ...

Towing with a vehicle other than a tow truck
If towing is necessary, we recommend you to have it done by an Authorized Kia dealer or a commercial tow truck service. If towing service is not available in an emergency, your vehicle may be tem ...

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