Kia Optima DL3 Quiz
Maintenance

Normal State

In this manual: Maintenance
General Information — 8Advanced Driver Assistance System (ADAS) — 21Maintenance — 27Engine Mechanical System — 45Engine Electrical System — 11Emission Control System — 11Engine Control System/Fuel System — 25Automatic Transmission — 20Drive Shaft and Axle — 7Suspension System — 22Steering — 7Restraints — 11Brake System — 22Body (Interior and Exterior) — 116Body Electrical System — 90Heating, Ventilation, and Air Conditioning — 32
~5min read

General Market

Normal Maintenance Schedule

The following maintenance must be performed to ensure good emissions control and performance. Keep receipts for all vehicle emissions services to protect your warranty. Where mileage and time are listed, the maintenance interval is determined by whichever occurs first.

NO. ITEM NOTICE
*1 Engine Oil and Engine Oil Filter Check the engine oil level and for leaks every 500 km (350 miles) or before a long trip.
*2 Engine Coolant When adding coolant, use only deionized water or soft water suitable for your vehicle. Never mix hard water with the factory-filled coolant. An improper coolant mixture may cause serious malfunction or engine damage.
*3 Drive Belts (Engine)

  • Adjust the generator, water pump and air conditioner (if equipped) drive belt. Inspect and repair or replace as necessary.

  • Inspect the drive belt tensioner, idler pulley and alternator pulley, and repair or replace as necessary.
*4 Spark Plug For your convenience, it may be replaced before its service life expires when you perform maintenance on other items.
5 Fuel Additives (Gasoline) Kia recommends using unleaded gasoline with a Research Octane Number (RON) of 95 / Anti-Knock Index (AKI) of 91 or higher (for Europe), or RON 91 / AKI 87 or higher (except Europe). For customers who do not regularly use good quality gasoline, including fuel additives, and who experience starting problems or rough engine running, add one bottle of fuel additive to the fuel tank every 15,000 km (Europe) / 10,000 km (except Europe). Additives can be purchased from an authorized Kia dealer together with instructions for their use. Do not mix other additives.
*6 Fuel filter The fuel filter is considered maintenance-free, but it should be inspected periodically. The recommended replacement interval for this maintenance schedule depends on fuel quality.

  • If there are any important safety concerns, such as fuel restriction, surging, loss of power, starting problems, etc., replace the fuel filter immediately regardless of the maintenance schedule and consult an authorized KIA dealer for detailed information.

I: Inspect and, if necessary, adjust, repair, clean or replace.

R: Replace or change

Number of months or driving distance, whichever occurs first
Months 12 24 36 48 60 72 84 96
Miles x 1000 10 20 30 40 50 60 70 80
km x 1000 15 30 45 60 75 90 105 120
Engine oil and engine oil filter*1 For Middle East*, Central and South America Replace every 10,000 km (6,200 miles) or 12 months.
Except Middle East*, Central and South America R R R R R R R R
Engine coolant*2 First replace at 200,000 km (120,000 miles) or 10 years, then replace every 40,000 km (25,000 miles) or 24 months*8
Drive belts (engine)*3 - I - I - I - I
Vacuum Hoses and Crankcase Ventilation Hoses - I - I - I - I
Spark plugs*4 Unleaded fuel Replace every 160,000 km (100,000 miles)
Leaded fuel (if equipped) Replace every 80,000 km (50,000 miles)
Automatic Transmission Fluid For Middle East* - I - I - I - I
Except Middle East* No inspection, no service
Drive Shaft and Boots - I - I - I - I
Fuel additives*5 Add every 10,000 km (6,200 miles) or 12 months
Fuel filter*6 - I - R - I - R
Fuel Lines, Hoses and Connections - - - I - - - I
Fuel Tank Air Filter - I - R - I - R
Vapor Hose and Fuel Tank Cap - - - I - - - I
Air Cleaner Filter For Middle East* R R R R R R R R
Except Middle East* I I R I I R I I
Exhaust System - I - I - I - I
Cooling System Inspect coolant level and check for leaks. Daily
First inspect at 60,000 km (40,000 miles) or 48 months, then inspect every 30,000 km (20,000 miles) or 24 months
A/C compressor/refrigerant I I I I I I I I
Climate Control Air Filter R R R R R R R R
Brake discs and pads I I I I I I I I
Brake Lines, Hoses and Connections I I I I I I I I
Brake fluid I I I I I I I I
Parking Brake - I - I - I - I
Steering Gear Box, Linkage and Boots I I I I I I I I
Ball joints of suspension and mounting bolts I I I I I I I I
Tire (Pressure and Tread Wear) I I I I I I I I
Battery Condition For Middle East* Check every 10,000 km (6,200 miles) or 6 months
Except Middle East* I I I I I I I
ERA-GLONASS system battery (if equipped) Replace every 3 years.

* Middle East: The Middle East includes Morocco, Sudan and Egypt.

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A quick Kia Optima DL3 quiz: every answer comes with an explanation and a link to the manual page.