Kia Optima: Engine coolant - Maintenance - Kia Optima TF 2011-2025 Owners ManualKia Optima: 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.

Changing the engine oil and filter
Have engine oil and filter changed by an authorized Kia dealer according to the Maintenance Schedule at the beginning of this section. WARNING Used engine oil may cause irritation or cancer ...

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. Also, hot ...

See also:

Defogging logic
To reduce the probability of fogging up inside of the windshield, the air intake or air conditioning are controlled automatically according to certain conditions such as or position. To cancel ...

Inspection
Lighting Switch InspectionWith the multifunction switch in each position, make sure that continuity exists between the terminals below. If continuity is not as specified, replace the multi-functio ...

Audio Remote Control. Schematic Diagrams
Circuit Diagram ...

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