Kia Optima: Maintenance / Engine coolant

Kia Optima DL3 2019-2025 Owner's Manual / Maintenance / Engine coolant

The high-pressure cooling system has a reservoir filled with year round antifreeze coolant. The reservoir is filled at the factory.

Check the antifreeze protection and coolant level at least once a year: at the beginning of the winter season, and before traveling to a colder climate.

Engine oil
Checking the engine oil level ■ THETA 2.4L - GDI 1. Be sure the vehicle is on level ground. 2. Start the engine and allow it to reach normal operating temperature. 3. Turn the engine off and w ...

Checking the coolant level
WARNING Removing radiator cap Never attempt to remove the radiator cap while the engine is operating or hot. Doing so might lead to cooling system and engine damage and could result in serious ...

Other information:

Kia Optima DL3 2019-2025 Service and Repair Manual: Cylinder Head


Components and components location Components 1. Camshaft bearing cap 2. Camshaft front bearing cap 3. Exhaust camshaft 4. Intake camshaft 5. Exhaust CVVT assembly 6. Intake CVVT assembly 7. Cam carrier 8. Cylinder head 9. Cylind ...

Kia Optima DL3 2019-2025 Service and Repair Manual: Front Strut Assembly


Components and components location Components 1. Strut assembly 2. Insulator dust cap 3. Insulator 4. Spring upper pad 5. Strut bearing 6. Strut bearing pad 7. Bumper rubber 8. Coil spring 9. Spring lower pad Repair procedur ...

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