Kia K5 Hybrid (Optima Hybrid) maintenance by mileage

How often owners do it

Engine oil and filterevery 6,000 mi
Engine air filterevery 6,000 mi
Cabin air filterevery 8,000 mi
Wiper bladesevery 11,000 mi
A/C refrigerant rechargeevery 12,000 mi
Tire rotationevery 13,000 mi

When the bigger jobs come up

Tiresaround 63,000 mi
Ignition coilsaround 86,000 mi
Batteryaround 78,000 mi
Front brake padsaround 100,000 mi
Control arms, links and bushingsaround 106,000 mi
Rear brake pads or shoesaround 102,000 mi

Oil, lug nut and tire numbers

Kia Optima

All 27 jobs, by mileage
JobUsually atMost betweenAgain everyVisits
Tire rotation44,000 mi21,000–79,000 mi13,000 mi1,021
Wiper blades61,000 mi33,000–94,000 mi11,000 mi885
Engine air filter62,000 mi31,000–99,000 mi6,000 mi7,011
Cabin air filter62,000 mi32,000–97,000 mi8,000 mi6,458
Engine oil and filter63,000 mi32,000–97,000 mi6,000 mi26,848
Tires63,000 mi35,000–95,000 mi–970
Brake fluid69,000 mi47,000–101,000 mi21,000 mi1,787
Wheel alignment69,000 mi38,000–106,000 mi22,000 mi1,189
Transmission fluid78,000 mi61,000–105,000 mi19,000 mi1,776
Battery78,000 mi54,000–104,000 mi–891
Throttle body cleaning80,000 mi58,000–110,000 mi–146
Spark plugs83,000 mi64,000–111,000 mi24,000 mi1,188
Ignition coils86,000 mi68,000–111,000 mi–916
Engine and transmission mounts88,000 mi66,000–112,000 mi–75
Coolant (antifreeze)91,000 mi65,000–122,000 mi16,000 mi987
Thermostat92,000 mi77,000–135,000 mi–34
Drive (serpentine) belt93,000 mi66,000–126,000 mi–66
A/C refrigerant recharge96,000 mi74,000–123,000 mi12,000 mi1,104
Brake rotors (replace or resurface)96,000 mi71,000–126,000 mi–227
Front brake pads100,000 mi79,000–126,000 mi–710
Rear brake pads or shoes102,000 mi75,000–130,000 mi–440
Water pump105,000 mi79,000–135,000 mi–184
Shocks / struts106,000 mi78,000–135,000 mi–343
Control arms, links and bushings106,000 mi81,000–133,000 mi–652
CV axle or boot106,000 mi87,000–136,000 mi–229
Wheel bearing107,000 mi75,000–137,000 mi–171
Brake calipers109,000 mi76,000–134,000 mi–67

From 34,526 visits to independent repair shops in South Korea, 2020–2026 (model years mostly 2013–2023). Mileage converted from km and rounded; Korean-market cars can differ from US ones. Your owner’s manual comes first.