Kia Optima: Maintenance / Checking fluid levels

Kia Optima DL3 2019-2025 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 2019-2025 Service and Repair Manual: Blower Motor

Repair procedures Inspection 1. Connect the battery voltage and check the blower motor rotation. 2. If the blower motor does not operate well, substitute with a known-good blower motor and check for proper operation. ...

Kia Optima DL3 2019-2025 Service and Repair Manual: Power Seat Control Switch

Repair procedures Removal 1. Remove the front seat shield outer cover. (Refer to Body - "Front Seat Shield Outer Cover") 2. Remove the power seat control switch (A) by loosening the mounting screws. Installati ...