🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Year: 2013 👋 Introduction Market Position Market Position: The 2013 Subaru Impreza WRX STI represents the pinnacle of Subaru's rally-bred performance heritage in the Impreza line, targeting driving enthusiasts seeking all-wheel-drive capability, turbocharged power, and track-tuned handling. Competitive Analysis Competitive Analysis: Competed against performance variants of the Mitsubishi Lancer Evolution, Volkswagen Golf GTI, Ford Focus ST, and other sport compacts, emphasizing its unique symmetrical all-wheel-drive system and turbocharged boxer engine. Key Features Key Features: Symmetrical All-Wheel Drive, Turbocharged EJ257 Boxer Engine, performance-tuned suspension, Brembo brakes, Driver-controlled center differential (DCCD), advanced traction control systems. 📋 Manual Details Coverage Areas Coverage Areas: Complete Workshop Service and Repair Page Count Page Count: Estimated 2000+ pages (typical for complete workshop manuals of this era) Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Format: Downloadable Digital Format (PDF) 📖 Manual Coverage Systems Covered Engine: EJ257 Engine (2.5L Turbocharged Boxer), Engine Mechanical, Fuel System, Ignition System, Emission Control System, Cooling System, Lubrication System Transmission: 6-Speed Manual Transmission (TY856UB1LA), Clutch System, Drivetrain Components (Front Differential, Rear Differential, AWD System) Brakes: Brake System (ABS, EBD, Brake Booster, Master Cylinder, Calipers, Rotors), Parking Brake Suspension: Front Suspension (MacPherson Struts, Control Arms, Stabilizer Bar), Rear Suspension (Double Wishbone, Coil Springs, Stabilizer Bar), Alignment Specifications Steering: Power Steering System (Hydraulic), Steering Column, Steering Gear Assembly Electrical: Wiring Diagrams, Electrical Component Locations, Battery, Charging System, Starting System, Lighting, Audio System, Power Windows, Power Locks, HVAC Controls, ECU (Engine Control Unit) and other modules Bodywork: Body Exterior Components, Interior Trim, Doors, Hood, Trunk, Bumpers, Body Repair Procedures, Corrosion Protection Heating Ventilation Air Conditioning: HVAC System Operation, Refrigerant Charging, Component Diagnosis, Climate Control Safety Systems: Airbag System, Seatbelt System, SRS (Supplemental Restraint System) Diagnosis Procedures Included Maintenance: Routine Inspections, Oil and Filter Changes, Air Filter Replacement, Spark Plug Replacement, Fluid Level Checks and Top-Offs, Brake Pad and Rotor Replacement, Tire Rotation Repair: Engine Rebuilds, Turbocharger Overhaul, Transmission Overhaul, Suspension Component Replacement, Brake System Repairs, Electrical Component Diagnosis and Replacement, Body Panel Repair Troubleshooting: Diagnostic Trouble Codes (DTCs), Symptom-Based Troubleshooting Charts, Component Testing Procedures, Electrical Troubleshooting Guides Diagnostics: ECU Diagnosis, Sensor Testing, Actuator Testing, Fuel Pressure Testing, Compression Testing Specifications: Torque Specifications for all fasteners, Clearances and Tolerances, Fluid Capacities and Types, Electrical Specifications Technical Depth Technical Depth: Comprehensive from basic maintenance to complete engine and transmission rebuilds, including detailed electrical diagnostics and wiring schematics. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, printable pages with clear diagrams and text. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: EJ257 Boxer Displacement: 2.5 Liters (2457 cc) Aspiration: Turbocharged and Intercooled Performance Horsepower: 305 hp @ 6000 RPM Torque: 290 lb-ft @ 4000 RPM Fuel System Fuel Delivery: Sequential Multi-port Fuel Injection (MPI) Recommended Fuel: Premium Unleaded (91 Octane or higher) Engine Codes Engine Code: EJ257 🔧 Transmission Standard Transmission Type: 6-Speed Manual Transmission Model: TY856UB1LA Optional Optional Transmission: N/A (Only Manual Available for STI) Features Dccd: Driver-controlled Center Differential (DCCD) for adjustable torque split between front and rear axles Differential Type: Front: Helical LSD, Rear: Active Torque Split VCD (Variable Control) 📐 Dimensions Exterior Length: 179.5 inches Width: 70.9 inches Height: 58.1 inches Wheelbase: 103.2 inches Weights Curb Weight: Approx. 3,373 lbs Cargo Cargo Volume: 11.3 cu ft (Sedan) 🛡️ Safety Features Ratings NHTSA Front Crash: 5-Star (2013 Model Year) IIHS Top Safety Pick: Yes (Top Safety Pick designation) Active Features Active Safety Features: Vehicle Dynamics Control (VDC), Traction Control System (TCS), Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD), Brake Assist Passive Features Passive Safety Features: Advanced Frontal Airbags, Front Side-Impact Airbags, Side-Curtain Airbags, Driver's Knee Airbag, Whiplash Protection Front Seats, Height-Adjustable Seatbelts 💡 Technology Features Infotainment Infotainment System: Subaru Starlink infotainment system with touchscreen, AM/FM/CD/MP3 player, Bluetooth connectivity, USB port. Driver Assistance Driver Assistance Features: Vehicle Dynamics Control (VDC), Traction Control System (TCS), Cruise Control. Connectivity Connectivity Options: Bluetooth hands-free phone and audio streaming, USB audio input. Performance Tech Performance Tech: SI-Drive (Subaru Intelligent Drive) system with three modes (Intelligent, Sport, Sport Sharp), DCCD (Driver-Controlled Center Differential). 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or 3 months, whichever comes first (under severe driving conditions) or 7,500 miles/6 months (normal). Engine Oil Filter Replacement: With every oil change. Air Filter Replacement: Every 15,000 miles or 12 months. Spark Plug Replacement: Typically every 30,000-60,000 miles depending on plug type (iridium recommended). Brake Fluid Flush: Every 30,000 miles or 24 months. Fluid Specifications Engine Oil Type: SAE 5W-30 Synthetic (API SN or ILSAC GF-5) Engine Oil Capacity: 5.5 US quarts (with filter) Coolant Type: Subaru Super Coolant (Blue) Transmission Fluid Type: Subaru Extra-S Gear Oil (75W-90 GL-5 for manual transmission and differentials)...