🏷️ Basic Information Identification Make: Kia Model: Optima Year: 2009 Engine: 2.4L DOHC Codes Engine Code: G4KC 👋 Introduction Market Position Segment: Mid-size sedan. Target Audience: DIY mechanics, independent repair shops, fleet maintenance personnel. Competitive Analysis Key Competitors: Honda Accord, Toyota Camry, Nissan Altima, Ford Fusion, Chevrolet Malibu. Key Features Vehicle Appeal: Affordable pricing, comfortable ride, modern styling for its time, good fuel economy. Manual Value: Provides in-depth knowledge to maintain and repair the vehicle, saving on dealership service costs. 📋 Manual Details Coverage Areas Coverage: Complete service and repair procedures for the 2009 Kia Optima 2.4L DOHC. Page Count Estimated Page Count: Approximately 1500-2500 pages (typical for comprehensive workshop manuals of this era). Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine System: Engine mechanical, lubrication, cooling, fuel delivery, ignition, emissions control, starting and charging. Transmission System: Manual and Automatic transmission overhaul, diagnostics, and fluid service. Drivetrain System: Front-wheel drive system, axles, CV joints, differential. Suspension System: Front and rear suspension components, shock absorbers, springs, control arms, alignment specifications. Steering System: Power steering system, steering column, rack and pinion, troubleshooting. Brake System: Front and rear brake systems (disc brakes), ABS, brake fluid specifications, bleeding procedures. Electrical System: Battery, charging system, starting system, lighting, instrument cluster, body control modules, wiring diagrams. HVAC System: Heating, Ventilation, and Air Conditioning (HVAC) system diagnosis and repair, refrigerant handling. Body And Chassis: Body panels, doors, glass, interior trim, chassis components, corrosion protection. Restraint System: Airbag system, seat belts, SRS component diagnosis and replacement. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks and top-offs, spark plug replacement. Diagnostics: Troubleshooting common problems, diagnostic trouble codes (DTCs), symptom-based troubleshooting. Repair: Component removal and installation, engine tune-ups, brake pad/rotor replacement, suspension component repair. Overhaul: Engine disassembly and reassembly, transmission rebuilds, brake caliper overhaul. Electrical Repair: Wiring harness repair, sensor replacement, actuator testing, electrical component diagnostics. Body Repair: Dent removal, panel replacement, door hinge adjustment, glass installation. Torque Specifications: Detailed torque specifications for critical engine, chassis, and transmission fasteners. Schematics: Includes hydraulic, vacuum, and electrical schematics where applicable. Technical Depth Depth: Comprehensive, from basic maintenance to complex engine and transmission rebuilds, including detailed wiring diagrams and diagnostic procedures. Wiring Diagrams: Includes comprehensive electrical system wiring diagrams for all major components and circuits. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text for quick information retrieval. Pages Organization: Likely organized into chapters by system, with clear sections for diagnostics, repair procedures, torque specifications, and wiring diagrams. Print Quality Printability: Printable for physical copy use in workshop environments. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Inline-4 Cylinder, DOHC (Dual Overhead Camshafts), 16 Valves. Displacement: 2359 cc (2.4 Liters) Bore X Stroke: 88.0 mm x 97.0 mm Compression Ratio: 10.5:1 Performance Horsepower: 175 hp @ 6000 rpm (SAE Net) Torque: 169 lb-ft @ 4000 rpm (SAE Net) Fuel System Fuel Type: Unleaded Gasoline Fuel Delivery: Electronic Multi-Port Fuel Injection (MPI) Recommended Octane: 87 Octane (minimum) 🔧 Transmission Standard Type: 6-Speed Manual Transmission Optional Type: 6-Speed Automatic Transmission with Sportmatic Shifting Features Automatic Transmission Features: Electronically controlled, torque converter lock-up. Fluid Specifications Manual Transmission Fluid: API GL-4, SAE 75W-90 Automatic Transmission Fluid: Kia Genuine ATF SP-III or equivalent (check manual for exact specification/replacement). 📐 Dimensions Exterior Length: 187.1 inches (4753 mm) Width: 72.1 inches (1831 mm) Height: 57.7 inches (1466 mm) Wheelbase: 109.4 inches (2779 mm) Cargo Trunk Volume: 15.1 cubic feet (427 liters) Weights Curb Weight Manual: 3,340 lbs (1515 kg) Curb Weight Automatic: 3,380 lbs (1533 kg) Gross Vehicle Weight Rating: 4,500 lbs (2041 kg) 🛡️ Safety Features Ratings NHTSA Front Driver Side: 5 Stars NHTSA Front Passenger Side: 5 Stars NHTSA Side Driver Front: 5 Stars NHTSA Side Passenger Front: 5 Stars NHTSA Side Rear Driver: 5 Stars NHTSA Side Rear Passenger: 5 Stars IIHS Front Impact Rating: Good IIHS Side Impact Rating: Good IIHS Rear Impact Rating: Good Active Features Traction Control: Standard Electronic Stability Control: Standard Anti Lock Brakes: Standard Electronic Brake Force Distribution: Standard Passive Features Airbags: Front dual-stage airbags, front side-impact airbags, side curtain airbags (front and rear). Seat Belts: 3-point seat belts with pretensioners and load limiters. Active Head Restraints: Front seats 💡 Technology Features Infotainment Audio System: Standard AM/FM/CD/MP3 audio system with 6 speakers. Optional Infinity premium audio system available on higher trims. Connectivity: Auxiliary audio input jack. Optional Bluetooth hands-free connectivity on some trims. Navigation: Optional in-dash navigation system available on select higher trims. Driver Assistance Cruise Control: Standard Rear Parking Sensors: Optional 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 miles (8,000 km) or 6 months, whichever comes first (under normal driving conditions). 3,000 miles (5,000 km) or 3 months under severe...