Kia Optima: Maintenance / Engine coolant

Kia Optima DL3 2019-2024 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 2019-2024 Service and Repair Manual: Lift And Support Points

General information Lift And Support Points When heavy rear components such as suspension, fuel tank, spare tire, tailgate and trunk lid are to be removed, place additional weight in the luggage area before h ...

Kia Optima DL3 2019-2024 Service and Repair Manual: Curtain Airbag (CAB) Module

Description and operation Description Curtain airbags are installed inside the headliner (LH and RH) and protect the driver and passenger from danger when a side crash occurs. The SRSCM determines deployment of the curtain airbag by using the side impact sensor (SIS) signal. ...