Kia Optima: Engine Cooling SystemThe 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.
Oil Capacity
Checking the Coolant LevelPower Brakes
Your vehicle has power-assisted brakes that adjust automatically through normal
usage.
In the event that the power-assisted brakes lose power because of a stalled engine
or some other reason, you ...
Removal
1.
Loosen the drain plug, and drain
the coolant. Remove the radiator cap to speed draining.
2.
Disconnect the oil cooler coolant
hoses (A).
3.
...
Installation
1.
Apply a light coat of engine
oil to the oil cooler packing surface (A), and then install the oil cooler
with fix bolt (B).
Tightening torque:44.1
~ 53.9 N.m (4.5 ~ ...