Kia Optima: Engine coolant - Maintenance - Kia Optima TF 2011-2021 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:

Withheld alarm
When the alarm is armed, the alarm will not sound if the trunk lid is opened with either the key or the transmitter. However, if the trunk lid is not opened completely within two seconds after unlo ...

Fuel Pump Repair procedures
Removal 1. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group). 2. Remove the fuel tank. (Refer to "Fuel Tank" in this group) ...

Installation
1. Installation is the reverse of removal. After replacement or reinstallation procedure of the valve body assembly, ...

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