🏷️ Basic Information Identification Make: Kia Model: Optima Model Code: MG Year: 2007 Engine Variant: 2.4 DOHC Codes Engine Code: G4KC (likely, based on common Kia 2.4L DOHC of the era) 👋 Introduction Market Position Segment: Mid-size sedan Target Audience: Owner-operators seeking to perform DIY maintenance and repairs, independent repair shops, enthusiasts Competitive Analysis Key Competitors: Toyota Camry, Honda Accord, Nissan Altima, Ford Fusion, Chevrolet Malibu Key Features Vehicle Highlights: Stylish design for its era, comfortable interior, generally reliable powertrain, good value proposition Manual Value Proposition Value For Money: Provides in-depth technical information essential for maintaining and repairing the vehicle, potentially saving significant costs on professional service. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive maintenance and repair procedures Page Count Estimated Page Count: Approx. 1500-2500 pages (typical for a complete service manual) Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine: Engine mechanical, engine management, fuel system, lubrication, cooling system, exhaust system, emissions control Transmission: Automatic Transmission (likely M5GF1 or similar for this era) - operation, diagnosis, repair Drivetrain: Front-wheel drive system, drive shafts, differential Suspension: Front and rear suspension systems, shock absorbers, springs, control arms, steering knuckles Steering: Power steering system, steering column, rack and pinion Brakes: Front and rear brake systems (disc brakes), ABS (Anti-lock Braking System), parking brake Electrical: Battery, charging system, starting system, ignition system, lighting system, instrument cluster, body control module (BCM), fuses, relays, wiring diagrams HVAC: Heating, Ventilation, and Air Conditioning (HVAC) system, components, diagnosis, and repair Body: Exterior body panels, interior trim, doors, windows, locks, glass, body repair procedures Safety Systems: Airbag system, seat belt pre-tensioners Procedures Included Maintenance: Scheduled maintenance, fluid changes, filter replacements, inspections Troubleshooting: Diagnostic procedures, symptom-based troubleshooting, fault code interpretation Repair: Component removal, installation, and repair procedures for all major systems Diagnostics: Detailed diagnostic flowcharts, testing procedures for sensors, actuators, and modules Technical Specifications: Torque specifications, clearances, fluid capacities, electrical specifications Technical Depth Depth: Comprehensive; covers routine maintenance to full engine and transmission rebuilds, including complex electrical diagnostics 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable, allowing for quick finding of specific terms or procedures Print Quality Image Clarity: High quality, suitable for displaying images, graphics, and diagrams accurately (as per description) Readability: Excellent, designed for clear text and diagram presentation Binding Type Binding: N/A (Digital PDF format) Paper Type Paper Quality: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Name: 2.4L DOHC Inline-4 (Theta II family) Displacement: 2359 cc Bore X Stroke: 86.0 mm x 100.0 mm (typical for G4KC) Compression Ratio: 9.6:1 to 10.5:1 (varies slightly by market/sub-model) Valvetrain: DOHC (Double Overhead Camshaft), 16 valves (4 valves per cylinder) Fuel Delivery: Electronic Multi-Point Fuel Injection (MPI) Ignition System: Electronic Ignition, Distributorless Ignition System (DIS) with Coil-on-Plug (COP) Emission Controls: Catalytic Converter, Oxygen Sensors (O2), EGR (Exhaust Gas Recirculation - depending on market) Performance Horsepower: Approx. 164-175 hp @ 6000 rpm (depending on market/tune) Torque: Approx. 160-165 lb-ft @ 4000 rpm (depending on market/tune) Fuel System Fuel Type: Unleaded Gasoline (87 Octane minimum recommended) Fuel Tank Capacity: Approx. 18.5 US gallons (70 Liters) 🔧 Transmission Standard Transmission Type: 5-speed Manual Transmission (optional, less common) Optional Transmission Type: 4-speed Automatic Transmission (standard on many models, likely M4AF3 or similar) Features Automatic Features: Electronically controlled, Lock-up torque converter, Adaptive shift logic Fluid Type Automatic Transmission Fluid: Refer to manual for specific ATF type (e.g., SP-III or equivalent) 📐 Dimensions Exterior Length: Approx. 187.4 inches (4760 mm) Width: Approx. 72.4 inches (1839 mm) Height: Approx. 58.7 inches (1491 mm) Wheelbase: Approx. 107.1 inches (2720 mm) Wheel Bolt Pattern: 5x114.3 mm (5x4.5 inches) Wheel Size: 16-inch or 17-inch alloy wheels Weights Curb Weight: Approx. 3300-3500 lbs (1497-1588 kg) depending on configuration 🛡️ Safety Features Ratings NHTSA Front Crash Test: 5-star (for driver and passenger, typically for 2007 model year) IIHS Front Offset Crash Test: Good (typically) Active Features ABS: Standard Traction Control: Available on some trims Electronic Stability Control: Available on some trims Passive Features Airbags: Front airbags, Side-curtain airbags, Front-seat side airbags Seat Belts: Pre-tensioners and load limiters for front seats 💡 Technology Features Infotainment Audio System: AM/FM/CD player with auxiliary input, optional Infinity audio system Display: Central LCD display for audio and climate information Driver Assistance Cruise Control: Standard Keyless Entry: Standard or available depending on trim level Connectivity Auxiliary Audio Input: Standard for connecting external audio devices 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 miles (8,000 km) or 6 months, whichever comes first (severe driving conditions may require more frequent changes) Air Filter Replacement: Every 15,000-30,000 miles (24,000-48,000 km) or as needed based on inspection Cabin Air Filter Replacement: Every 12,000-15,000 miles (19,000-24,000 km) or annually Spark Plug Replacement: Iridium plugs typically last 100,000 miles (160,000 km); consult manual...