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 LevelAdjusting the front seatback recliner
Rotate the upper portion of the control knob forward or backward to recline the
seatback to the desired position. Release the control knob and the seatback will
lock in position. ...
Inspection
Sprockets, Chain Tensioner, Chain Guide, Chain Tensioner Arm
1.
Check the camshaft sprocket and
crankshaft sprocket for abnormal wear, cracks, or damage. Replace as necessary.
...
Immobilizer Control Unit. Repair procedures
Replacement
1.
Disconnect the negative (-) battery
terminal.
2.
Remove the crash pad lower panel.
(Refer to the BD group - "Crash pad")
3.
...