Kia Optima DL3: 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 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.

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 personal injury from escaping hot coolant or steam.

Other information:

Kia Optima DL3 2019-2026 Service and Repair Manual: Panorama Sunroof

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Kia Optima DL3 2019-2026 Service and Repair Manual: Washer Motor

Repair procedures Inspection Washer Motor 1. With the washer motor connected to the reservoir tank, fill the reservoir tank with water.    Before filling the reservoir tank with water, check the filter for foreign mat

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