Kia Optima: Maintenance / Engine coolant

Kia Optima DL3 2019-2021 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 2019-2021 Service and Repair Manual: Front Door Module


Components and components location Component Location 1. Front door module Repair procedures Replacement    • When removing with a flat-tip screw ...

Kia Optima DL3 2019-2021 Owner's Manual: Closing the sunroof


To close the sunroof glass with the sunshade Push the sunroof control lever forward to the 2nd detent position. The sunroof glass and sunshade will close automatically. To stop the sunroof movement at any point, pull or push the sunroof control lever momentarily. To close the sunroof glass on ...

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