The mid-size sedan produced from 2011 to 2015, represents the second generation (TF) of this model, distinguished by its European-inspired design and a European design influence. Known for offering a compelling balance of comfort, efficiency, and value, the Optima was targeted towards families and commuters. It featured a distinctive "Tiger-nose" grille and a sleek, coupe-like profile. Available with a 2.4L inline-4 engine producing approximately 175 hp or an optional 3.5L V6 engine with around 274 hp, the Optima was offered with either a 6-speed automatic or a 6-speed manual transmission, all driving the front wheels. Safety was a key consideration, with standard ABS, EBD, ESC, traction control, and multiple airbags. This comprehensive Factory Service Repair Manual provides detailed information for the maintenance and repair of all trim levels of the 2011 model. It covers extensive system coverage, including engine mechanicals, transmission overhaul, drivetrain, suspension, braking, steering, electrical systems, body, HVAC, and safety systems. The manual includes step-by-step repair procedures, diagnostic guides, interpretation of diagnostic trouble codes, required special tools, torque specifications, and detailed wiring diagrams. It is designed to empower owners, mechanics, and technicians with the knowledge necessary to perform everything from routine maintenance, such as oil changes and filter replacements, to complete component rebuilds and advanced diagnostics, ensuring the optimal performance and longevity of the vehicle. 🏷️ Basic Information Identification Make: Kia Model: Optima Year: 2011 Generation Generation Code: TF Codes Vin Prefix: KND 👋 Introduction Market Position Vehicle Segment: Mid-size Sedan Target Audience: Families, commuters, individuals seeking a balance of comfort, efficiency, and value Competitive Analysis Key Competitors: Toyota Camry, Honda Accord, Hyundai Sonata, Ford Fusion, Chevrolet Malibu Key Features Design Philosophy: European-inspired design, premium interior feel for its class Value Proposition: Strong feature set for the price, excellent warranty coverage (at time of sale) Manual Advantage: Empowers owners and independent mechanics with factory-level repair knowledge, reducing reliance on dealerships and specialized shops 📋 Manual Details Coverage Areas Coverage Continents: Global (North America focused) Trim Levels Covered: All Page Count Estimated Pages: 1000+ Manual Type Type: Factory Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Systems: Engine mechanical, lubrication, cooling, fuel delivery, ignition, emissions, engine control (ECU/ECM), turbocharging (if applicable) Transmission Systems: Automatic transmission (AT) and Manual transmission (MT) - overhaul, diagnosis, fluid service Drivetrain Systems: Front-wheel drive (FWD), axle shafts, CV joints, differential Suspension Systems: Front and rear suspension, shock absorbers, struts, springs, control arms, bushings, alignment specifications Braking Systems: Front and rear brakes (disc/drum), ABS, EBD, brake hydraulics, caliper and rotor specifications, brake fluid type Steering Systems: Power steering (hydraulic/electric), steering rack, tie rods, steering column Electrical Systems: Battery, charging system, starter, lighting, wipers, horn, power accessories, wiring diagrams Body Systems: Body panels, doors, windows, locks, interior trim, bumpers, glass, seals HVAC Systems: Heating, Ventilation, and Air Conditioning (HVAC) system, refrigerant, compressor, evaporator, condenser Safety Systems: Airbags, seat belts, SRS (Supplemental Restraint System) diagnosis Infotainment Systems: Audio system, navigation (if equipped), display units Procedures Included Maintenance Procedures: Oil change, filter replacement, spark plug replacement, fluid checks and changes, belt inspection and replacement Repair Procedures: Component removal and installation, engine overhaul, transmission repair, brake component replacement, suspension component replacement Diagnostic Procedures: Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs) interpretation Special Tools: Required special tools and equipment for specific repairs Technical Depth Depth: Comprehensive (from basic maintenance to complete rebuilds) Diagnostic Capabilities: Advanced diagnostics, including scan tool data interpretation and electrical circuit tracing Torque Specifications: Detailed torque specifications for all critical fasteners Tolerances: Engine component clearances and tolerances for rebuilds Wiring Diagrams: Comprehensive, color-coded electrical wiring diagrams 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content Print Quality Print Readability: High resolution, suitable for printing Binding Type Binding Type: N/A (Digital PDF download) Paper Type Paper Type: N/A (Digital PDF download) ⚙️ Engine Specifications Primary Engine Engine Code 1: G4KD (2.4L Theta II MPI) Engine Type 1: Inline 4-Cylinder, DOHC, 16-Valve Displacement 1: 2359 cc (2.4 Liters) Bore X Stroke 1: 87.0 mm x 97.0 mm Compression Ratio 1: 9.5:1 Horsepower 1: 175 hp @ 6000 rpm (approx.) Torque 1: 169 lb-ft @ 4000 rpm (approx.) Fuel Delivery 1: Multi-Point Fuel Injection (MPI) Optional Engine Engine Code 2: G6DJ (3.5L Lambda II GDi) Engine Type 2: V6, DOHC, 24-Valve Displacement 2: 3470 cc (3.5 Liters) Horsepower 2: 274 hp @ 6400 rpm (approx.) Torque 2: 245 lb-ft @ 4400 rpm (approx.) Fuel Delivery 2: Gasoline Direct Injection (GDi) Fuel System Recommended Fuel: 87 Octane (Minimum) 🔧 Transmission Standard Transmission Type 1: 6-Speed Automatic (6-Speed Manual also available on some trims/markets) Fluid Type 1: Kia SPIII or compatible ATF (refer to manual for specific P/N) Optional Transmission Type 2: 6-Speed Manual Fluid Type 2: API GL-4 SAE 75W-85 (refer to manual for specific P/N) Features Drive Wheels:...