Kia Optima: Maintenance / Checking fluid levels

Kia Optima DL3 2019-2021 Owner's Manual / Maintenance / Checking fluid levels

When checking engine oil, engine coolant, brake fluid, and washer fluid, always be sure to clean the area around any filler plug, drain plug, or dipstick before checking or draining any lubricant or fluid. This is especially important in dusty or sandy areas and when the vehicle is used on unpaved roads. Cleaning the plug and dipstick areas will prevent dirt and grit from entering the engine and other mechanisms that could be damaged.

Explanation of scheduled maintenance items
Engine oil and filter The engine oil and filter should be changed at the intervals specified in the maintenance schedule. If the vehicle is being driven in severe conditions, more frequent oil an ...

Engine oil
Checking the engine oil level ■ THETA 2.4L - GDI 1. Be sure the vehicle is on level ground. 2. Start the engine and allow it to reach normal operating temperature. 3. Turn the engine off and w ...

Other information:

Kia Optima DL3 2019-2021 Owner's Manual: Battery replacement


A smart key battery should last for several years, but if the smart key is not working properly, try replacing the battery with a new one. If you are unsure how to use your smart key or replace the battery, contact an authorized Kia dealer. 1. Remove the mechanical key. 2. Pry open the rear ...

Kia Optima DL3 2019-2021 Owner's Manual: Folding the outside rearview mirror


Electric type The outside rearview mirror can be folded or unfolded by pressing the switch when the ignition switch is ACC or ON position as below. Left (1) : The mirror will unfold. Right (2) : The mirror will fold. Center (AUTO, 3) : The mirror will fold or unfold automatically as follows ...

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