2018 Kia Optima Service and Repair Manual

Kia published one set of specifications for the 2018 Optima, and this factory service and repair manual carries exactly that set — matched to the year, engine and trim on your car, so any torque value or clearance you look up is the figure written for your sedan rather than one carried over from a neighboring model year.

Engines covered

• 2.0L inline-four (122 cu in) — DOHC, turbocharged, gasoline
• 2.0L inline-four full hybrid (122 cu in) — DOHC, naturally aspirated, gasoline
• 2.4L inline-four — DOHC, naturally aspirated, gasoline
• 2.0L inline-four plug-in hybrid (122 cu in) — DOHC, naturally aspirated, gasoline
• 1.6L inline-four (97 cu in) — DOHC, turbocharged, gasoline

Body styles covered

• 4-door sedan

Trims covered

• EX
• EX Pack
• EX Tech
• Hybrid EX
• Hybrid EX Premium
• Hybrid LX
• Hybrid Premium
• LX
• LX 1.6T
• Plug-In Hybrid EX
• Plug-In Hybrid EX Premium
• S
• SX
• SX Turbo
• SXL
• SXL Turbo

Known issues on the 2018 Optima. One recall is on federal record for this model year. It covers the trunk lid latch: the trunk latch base may crack, and a person inside the trunk compartment may become trapped, increasing their risk of injury. Owners have filed 324 complaints for the year and Kia has issued 110 technical service bulletins.

Whether you are replacing a trunk latch, servicing the hybrid or plug-in hybrid drivetrain, or working to a routine maintenance interval, this manual keeps you on the OEM procedure and the correct specification for your specific 2018 Optima.