External Pages
These are pages that do not belong to the exact selected vehicle (2018 Kia Optima EX), but are still accessible from a link in your vehicle's manual. Be very cautious using repair info from here because these pages may not apply to your vehicle.- Different variant/trim
- Section 1 (EGR Function Testing - KIA)
- Section 2 (Engine Control System Diagnosis - 1.6L (2 Of 3) (Except HEV))
- Section 3 (Engine Control System - 1.6L (Except HEV))
- Section 4 (Fuel Delivery System - 1.6L (Except HEV))
- Section 5 (Engine Mechanical System - General Information - 1.6L (Except HEV))
- Section 6 (Timing System - 1.6L (Except HEV))
- Section 7 (Engine And Transaxle Assembly (R & I) - 2.0L (Except HEV))
- Section 8 (Engine Cooling System - 2.0L (Except HEV))
- Section 9 (Intake And Exhaust System - 2.0L (Except HEV))
- Section 10 (Engine Electrical System - General Information - 2.0L (Except HEV))
- Section 11 (Engine Control System - 2.0L (Except HEV))
- Section 12 (Automatic Transaxle System - General Information - 2.0L (Except HEV))
- Section 13 (Automatic Transaxle System - 2.0L (Except HEV))
- Section 14 (Hydraulic System - 2.0L (Except HEV))
- Section 15 (Dual Clutch Transmission Control System - 1.6L (Except HEV))
- Section 16 (Engine And Transaxle Assembly (R & I) - 1.6L (Except HEV))
- Section 17 (Charging System - 1.6L (Except HEV))
- Section 18 (Intake And Exhaust System - 1.6L (Except HEV))
- Section 19 (Ignition System - 1.6L (Except HEV))
- Section 20 (Ignition System - 2.0L (Except HEV))
- Section 21 (Automatic Transaxle Control System - 2.0L (Except HEV))
- Section 22 (Engine Electrical System - General Information - 1.6L (Except HEV))
- Section 23 (Engine Control/Fuel System - General Information - 1.6L (Except HEV))
- Section 24 (Engine Cooling System - 1.6L (Except HEV))
- Section 25 (Exhaust Emission Control System - 2.0L (Except HEV))
- Section 26 (Automatic Transaxle System Diagnosis - 2.0L (Except HEV))
- Section 27 (Engine Control System Diagnosis - 1.6L (1 Of 3) (Except HEV))
- Section 28 (Cylinder Head Assembly - 1.6L (Except HEV))
- Section 29 (Crankcase Emission Control System - 2.0L (Except HEV))
- Section 30 (Clutch & Brake - 2.0L (Except HEV))
- Section 31 (Emission Control System - General Information - 1.6L (Except HEV))
- Section 32 (Cylinder Block - 2.0L (Except HEV))
- Section 33 (Timing System - 2.0L (Except HEV))
- Section 34 (Lubrication System - 2.0L (Except HEV))
- Section 35 (Cylinder Head Assembly - 2.0L (Except HEV))
- Section 36 (Fuel Delivery System - 2.0L (Except HEV))
- Section 37 (Engine Starting System - 1.6L (Except HEV))
- Section 38 (Drive Belt System - 2.0L (Except HEV))
- Section 39 (Engine Control System Diagnosis - 2.0L (3 Of 3) (Except HEV))
- Section 40 (Charging System - 2.0L (Except HEV))
- Section 41 (Automatic Transaxle System Diagnosis - 1.6L (Except HEV) (2 Of 2))
- Section 42 (Engine Control System Diagnosis - 1.6L (3 Of 3) (Except HEV))
- Section 43 (Engine Control System Diagnosis - 2.0L (1 Of 3) (Except HEV))
- Section 44 (Engine Control System Diagnosis - 2.0L (2 Of 3) (Except HEV))
- Section 45 (Drive Belt System - 1.6L (Except HEV))
- Section 46 (Engine Control/Fuel System - General Information - 2.0L (Except HEV))
- Section 47 (Dual Clutch Transmission (DCT) System - 1.6L (Except HEV))
- Section 48 (Dual Clutch System - 1.6L (Except HEV))
- Section 49 (Engine Starting System - 2.0L (Except HEV))
- Section 50 (Lubrication System - 1.6L (Except HEV))
- Section 51 (Cylinder Block - 1.6L (Except HEV))
- Section 52 (Emission Control System - General Information - 2.0L (Except HEV))
- Section 53 (Automatic Transaxle System Diagnosis - 1.6L (Except HEV) (1 Of 2))