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.

Checking the coolant level

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 Owner's Manual: Sliding the sunroof

When the sunshade is closed Push the sunroof control lever backward to the 2nd detent position, and both the sunshade and sunroof glass will slide all the way open.To stop the sunroof movement at any point, push the sunroof control glass lever momentarily. When the sunshade is opened Push t ...

Kia Optima DL3 2019-2025 Owner's Manual: Sunshade

To open the sunshade Push the sunroof control lever backward to the 1st detent position. To close the sunshade when the sunroof glass is closed Push the sunroof control lever forward to the 1st detent position. To stop the sliding at any point, press the sunshade control switch momentarily. � ...