All Systems:
General Maintenance, Troubleshooting, Engine Service/Repair, Transmission Service/Repair, Brake System, Wiring Diagram, Electrical System, Suspension, Periodic Lubrication, Steering, Cooling System, Fuel Injection/Fuel System, Emission System, Heater/Air Conditioning, Engine Control System, Chassis/Body, Restraint System, Interior, Differential/Drive, Axle
Engine Mechanical:
Engine assembly, cylinder head, valve train, piston and connecting rod, crankshaft, flywheel, engine lubrication, engine cooling system
Engine Electrical:
Ignition system, charging system, starting system, engine control system (ECU, sensors, actuators)
Transmission Mechanical:
Manual transmission overhaul, automatic transmission overhaul, clutch system, torque converter
Transmission Electrical:
Transmission control module (TCM), shift solenoids, speed sensors
Braking System:
Front and rear disc brakes, parking brake, hydraulic system, ABS components
Steering System:
Power steering system, steering column, steering gear
Suspension System:
Front suspension (struts, control arms, ball joints), rear suspension (multi-link), shock absorbers, springs
Wheel And Tires:
Wheel alignment, tire rotation, tire pressure
Fuel System:
Fuel tank, fuel pump, fuel filter, fuel injectors, fuel pressure regulator
Emission Control:
Exhaust system, catalytic converter, O2 sensors, EVAP system
HVAC System:
Air conditioning system, heater core, blower motor, climate controls
Electrical Lighting:
Headlights, taillights, interior lights, fog lights
Electrical Instruments:
Instrument cluster, gauges, warning lights
Body Interior:
Door panels, dashboard, seats, trim components, sound insulation
Body Exterior:
Bumpers, fenders, hood, trunk lid, doors, glass, mirrors
Restraint System:
Seat belt mechanisms, airbag system components and deployment diagnostics
Chassis And Frame:
Frame structure, subframes, body mounting
Drive Axles And Differential:
Front wheel drive axle shafts, constant velocity joints, rear differential (if applicable for AWD variant, though Optima 2006 was primarily FWD)
Repair Maintenance:
Step-by-step repair and maintenance procedures, diagnostic and repair procedures, advanced troubleshooting guide, rebuild, refurbish, restore
Troubleshooting Guides:
Comprehensive guides for diagnosing common and uncommon problems, electrical diagnostic flowcharts
Lubrication Schedule:
Detailed periodic lubrication points and recommended lubricant types
Torque Specifications:
Precise torque values for all critical fasteners and components
Wiring Diagrams:
Complete and detailed electrical wiring diagrams for all vehicle systems, color-coded for clarity
Diagnostic Trouble Codes:
Information on DTCs, their meanings, and diagnostic procedures
Component Replacement:
Detailed instructions for replacing major and minor components across all systems
Depth:
Comprehensive, covering what factory trained technicians know, detailed substeps, notes, cautions, warnings, numbered instructions, detailed illustrations, drawings, photos, enlarged insets
Oil Change Interval:
Typically every 7,500 miles (12,000 km) or 6 months, whichever comes first (refer to manual for specific engine oil type and conditions)
Engine Coolant Interval:
Initial replacement at 105,000 miles (170,000 km), then every 45,000 miles (70,000 km) thereafter (using specified coolant)
Spark Plug Replacement:
Approximately 100,000 miles (160,000 km) for iridium-tipped spark plugs
Engine Oil Specification:
API SM or higher, ILSAC GF-4 or higher, SAE 5W-20 or 5W-30 (refer to manual for exact viscosity based on temperature)
Transmission Fluid Automatic:
SP-III (Kia Genuine ATF or equivalent)
Coolant Type:
HOAT (Hybrid Organic Acid Technology) Long Life Coolant, typically blue or pink
Power Steering Fluid:
Kia Genuine Power Steering Fluid PSF or Dexron III/Mercon ATF
Brake Fluid Capacity:
Approx. 1 liter (refer to manual for exact capacity)
Common Complaints:
CV axle boot wear, minor electrical issues (e.g., power window motors), potential for catalytic converter failure, suspension component wear (e.g., control arm bushings) over higher mileage