🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Generation: G3 Model Years Covered: 2012, 2013, 2014 Codes Chassis Code: GR/GV (Hatchback/Sedan) 👋 Introduction Market Position Vehicle Segment: Compact Sports Sedan/Hatchback Performance Focus: High-performance variant of the Subaru Impreza, rally-bred heritage Competitive Analysis Key Competitors: Mitsubishi Lancer Evolution, Volkswagen Golf GTI, Ford Focus RS Key Features Performance Drivetrain: Symmetrical AWD, turbocharged Boxer engine, performance suspension Rally Heritage: Direct lineage from Subaru's World Rally Championship success Driver Engagement: Focus on handling, steering feel, and driver feedback 📋 Manual Details Coverage Areas Manual Type: Complete Workshop Service Repair Manual Language: English Format: Downloadable Digital File (likely PDF) Page Count Estimated Page Count: Over 3000 pages (typical for complete workshop manuals) 📖 Manual Coverage Systems Covered Engine: 2.5L Turbocharged EJ257 (and potential variations) Transmission: 6-speed Manual Transmission (TY757VB1AA, etc.) Drivetrain: Symmetrical All-Wheel Drive (AWD) System Suspension: Front: MacPherson Struts, Rear: Double Wishbone Brakes: Front: Brembo 4-piston calipers, Rear: Brembo 2-piston calipers Steering: Hydraulic Power Steering Electrical: Full Electrical Schematics, ECU, Sensors, Lighting, Audio Body And Chassis: Body panels, doors, interior trim, structural components HVAC: Heating, Ventilation, and Air Conditioning System Fuel System: Fuel pump, injectors, lines, tank Cooling System: Radiator, coolant, water pump, thermostat Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks, tire rotation Engine Overhaul: Engine assembly/disassembly, piston/ring replacement, valve service Transmission Repair: Clutch replacement, gearbox disassembly/reassembly, differential service Brake System Repair: Brake pad/rotor replacement, caliper service, fluid bleeding Suspension And Steering Repair: Component replacement (struts, bushings, tie rods), alignment procedures Electrical Diagnostics: Troubleshooting wiring issues, sensor testing, component diagnosis Bodywork And Collision Repair: Panel replacement, structural repair guidance Troubleshooting: Diagnostic flowcharts, common problems and solutions Specifications And Tolerances: Detailed torque values, clearances, fluid capacities Diagnostic Trouble Codes DTCs: Explanation of codes and diagnostic paths Technical Depth Depth Of Coverage: Comprehensive, covering from basic maintenance to full engine/transmission rebuilds Diagnostic Capability: Advanced diagnostics for engine, transmission, ABS, airbags, and more Rebuild Procedures: Detailed instructions for rebuilding major components Special Tools Required: Identification of necessary specialized tools for specific repairs 📊 Manual Specifications File Format File Type: Digital (PDF) Searchability: Likely text-searchable PDF for easy information retrieval Print Quality Printability: Designed for printing individual pages or sections as needed Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: EJ257 Engine Type: 2.5L Flat-4 (Boxer), Turbocharged, Intercooled Bore X Stroke: 99.5 mm x 79.0 mm Compression Ratio: 8.2:1 Performance Horsepower: 305 hp @ 6000 rpm (approx.) Torque: 290 lb-ft @ 4000 rpm (approx.) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Turbocharger: IHI VF48 or similar twin-scroll turbocharger 🔧 Transmission Standard Transmission Type: 6-Speed Manual Transmission Model: TY757VB1AA (example) Optional Optional Transmission: N/A (STI models are exclusively manual) Features Center Differential: Driver-controlled center differential (DCCD) Rear Differential: Helical Limited Slip Differential (LSD) Transmission Fluid Spec: Subaru Extra-S Gear Oil (GL-5) or equivalent, 75W-90 viscosity recommended 📐 Dimensions Exterior Length: 4415 mm (Sedan) / 4414 mm (Hatchback) Width: 1795 mm Height: 1470 mm (Sedan) / 1475 mm (Hatchback) Wheelbase: 2650 mm Ground Clearance: 140 mm (approx.) Weights Curb Weight: 1505 kg (Sedan) / 1510 kg (Hatchback) (approx.) Gross Vehicle Weight Rating Gvwr: Not explicitly specified, but typical for class Cargo Trunk Volume: 301 Liters (Sedan) / 293 Liters (Hatchback, with seats up) 🛡️ Safety Features Ratings NHTSA Ratings: Typically rated highly, but specific year data may vary. Check NHTSA for official reports. Active Features Traction Control: Vehicle Dynamics Control (VDC) with sport mode ABS: Anti-lock Braking System (ABS) with Electronic Brake-force Distribution (EBD) AWD: Symmetrical All-Wheel Drive System Passive Features Airbags: Front, Side, Curtain Airbags Seatbelts: 3-point ELR seatbelts with pretensioners and load limiters Child Seat Anchors: LATCH (Lower Anchors and Tethers for CHildren) system 💡 Technology Features Infotainment Infotainment System: Standard touchscreen audio system with CD, MP3, Bluetooth, USB, and AUX inputs. Higher trims may feature navigation. Speaker System: Typically 6-speaker or 9-speaker premium audio systems (e.g., Harman Kardon). Driver Assistance Cruise Control: Standard electronic cruise control. Keyless Entry: Standard keyless entry and ignition (push-button start). Connectivity Bluetooth: Standard Bluetooth connectivity for hands-free calling and audio streaming. Usb Port: Standard USB and auxiliary input ports. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles or 6 months, whichever comes first (severe duty) or 7,500 miles / 12 months (normal duty), refer to manual for specifics. Air Filter Replacement: Every 15,000-30,000 miles, or as needed based on driving conditions. Spark Plug Replacement: Refer to manual, typically around 60,000 miles for iridium plugs. Coolant Flush: Every 30,000-60,000 miles or as specified in manual. Fluid Specifications Engine Oil Spec: SAE 5W-30, API SN or higher, Synthetic recommended (e.g., Subaru Synthetic Engine Oil) Engine Oil Capacity: 5.8 US Quarts (with filter change)...