🏷️ Basic Information Identification Make: Kia Model: Optima Model Code: MG Model Year: 2007 Engine Variant: 2.4 DOHC 👋 Introduction Market Position Segment: Mid-size Sedan Target Audience: DIY mechanics, independent repair shops, Kia owners seeking in-depth service information. Competitive Analysis Competitors: Toyota Camry, Honda Accord, Nissan Altima, Ford Fusion. Key Features Value Proposition: Provides factory-level repair and maintenance information for cost-effective ownership and servicing. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive service and repair for the Kia Optima (MG) 2007 with 2.4 DOHC engine. Page Count Estimated Pages: 1500+ Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Engine: Complete overhaul, diagnostics, timing, cooling, lubrication, fuel injection, emissions control. Transmission: Automatic Transmission (likely AT5) service, diagnostics, fluid changes, overhaul. Brakes: Hydraulic system, ABS diagnostics, brake pad/rotor replacement, caliper service. Suspension: Front and rear suspension components, shock absorbers, struts, alignment procedures. Steering: Power steering system, steering rack, column service, alignment. Electrical: Complete wiring diagrams, component testing, charging system, starting system, lighting, body electronics, HVAC controls. Body: Body panel removal/installation, door mechanisms, interior trim, glass replacement. HVAC: Air conditioning system service, heater core replacement, blower motor. Diagnostics: OBD-II diagnostic trouble codes (DTCs), troubleshooting flowcharts, scan tool procedures. Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks, spark plug replacement. Repair: Component replacement, engine rebuild, transmission repair, brake system overhaul, suspension repair. Troubleshooting: Step-by-step diagnostic guides for common and uncommon issues. Diagnostics: Detailed diagnostic procedures using specialized tools and test equipment. Specifications: Torque specifications, clearances, fluid capacities, electrical resistance values. Technical Depth Depth: Comprehensive, covering from basic maintenance to full engine and transmission rebuilds. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely searchable text for easy keyword navigation. Print Quality Printability: Designed for printing, with clear diagrams and text. Binding Type Binding: N/A (Digital) Paper Type Paper Quality: N/A (Digital) Completeness Completeness Level: Full Factory Service Manual covering all systems and procedures. ⚙️ Engine Specifications Primary Engine Engine Code: G4KA (Theta) Engine Type: Inline-4, Naturally Aspirated Displacement: 2359 cc (2.4 Liters) Bore X Stroke: 86.7 mm x 97.0 mm Compression Ratio: 9.4:1 Valve Train: DOHC, 16 Valves (4 valves per cylinder) Performance Horsepower Max: 175 hp @ 6000 rpm Torque Max: 169 lb-ft @ 4000 rpm Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 Octane Recommended) Fuel Tank Capacity: 18.5 US gallons (70 Liters) 🔧 Transmission Standard Transmission Type: 5-Speed Automatic (AT5) Optional Transmission Type Optional: 5-Speed Manual (Rare) Features Transmission Fluid Type: Kia Genuine ATF SP-III or equivalent Transmission Fluid Capacity: Approx. 8.2 US quarts (7.8 Liters) for AT5 📐 Dimensions Exterior Length: 189.1 inches (4803 mm) Width: 72.4 inches (1839 mm) Height: 57.5 inches (1460 mm) Wheelbase: 109.4 inches (2779 mm) Front Track: 62.4 inches (1585 mm) Rear Track: 62.4 inches (1585 mm) Weights Curb Weight Est: 3373 - 3483 lbs (1530 - 1579 kg) Gross Vehicle Weight Rating Est: 4586 lbs (2080 kg) Towing Capacity: Not Recommended Cargo Trunk Volume Est: 15.4 cu ft (436 Liters) 🛡️ Safety Features Ratings NHTSA Front Crash: 5-Star NHTSA Side Crash: 5-Star IIHS Frontal Offset: Good IIHS Side Impact: Good Active Features ABS: Standard Traction Control: Standard Electronic Stability Control: Standard Passive Features Airbags Front: Dual Frontal Airbags Side: Front Side Impact Airbags Curtain: Side Curtain (Front and Rear) 💡 Technology Features Infotainment Audio System: AM/FM/CD/MP3 audio system with 6 speakers standard. Optional Infinity audio system available. Auxiliary Input: Standard auxiliary audio jack. Driver Assistance Cruise Control: Standard Keyless Entry: Standard Connectivity Usb Port: Not standard on most trims, may be an aftermarket addition or option. 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 miles (8,000 km) or 6 months, whichever comes first. Air Filter Replacement: Every 15,000 miles (24,000 km) or 12 months. Engine Coolant Flush: Every 30,000 miles (48,000 km) or 24 months. Spark Plug Replacement: Every 60,000 miles (96,000 km) (Platinum or Iridium plugs). Fluid Specifications Engine Oil Type: API SN/ILSAC GF-5 SAE 5W-20 Engine Oil Capacity: 4.6 US quarts (4.4 Liters) with filter Brake Fluid Type: DOT 3 Known Issues Common Problem 1: Excessive oil consumption in some 2.4L Theta engines due to piston ring issues. (May require engine rebuild). Common Problem 2: Premature wear of front suspension components (ball joints, tie rods). Common Problem 3: CVT transmission issues reported in some models (less common in the 2.4L AT5). Common Problem 4: HVAC blower motor resistor failure causing fan speed issues. 📚 Vehicle History Brand Heritage Manufacturer Origin: South Korea Model Evolution Generation: Second Generation (2006-2008) Platform: Hyundai EF/EL platform shared with Hyundai Sonata Production Production Years: 2006-2008 (North America) 🏆 Awards & Recognition Recognitions Previous Generation Awards: While specific awards for the 2007 Optima are less prominent, the Optima line has generally been recognized...