Kia Optima: Engine coolantThe 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
Checking the coolant levelTroubleshooting
Troubleshooting
Problem Symptoms Table
Use the table below to help you find the cause of the problem. The numbers indicate
the priority of the like cause of the problem. Check each par ...
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