Kia Optima: Brake/clutch fluid

Changing the coolant

Have the coolant changed by an authorized Kia dealer according to the Maintenance Schedule at the beginning of this section. CAUTION Put a thick cloth or fabric around the radiator cap befo ...

Checking the brake/clutch* fluid level

Check the fluid level in the reservoir periodically. The fluid level should be between MAX and MIN marks on the side of the reservoir. Before removing the reservoir cap and adding brake/c ...

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When Your Vehicle Is Being Towed By Another Vehicle Other Than a Tow Truck (in case of an emergency)
Turn the ignition switch to ACC so the steering wheel isn’t locked. Place the transaxle shift lever in N (Neutral). Vehicles equipped with automatic transaxles should not exceed 28 mph and s ...

Maintenance Services
You should exercise the utmost care to prevent both damage to your vehicle and injury to yourself whenever performing any maintenance or inspection procedures. Should you have any doubts concerning ...

Heated Oxygen Sensor (HO2S). Description and Operation
Description Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter. The sensor output voltage varies in ...