🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Year: 2012 Product Name: Subaru Impreza WRX STI 2012 All Service Repair Manual Download Generation Generation Code: GV/GR Codes Chassis Code: GRF (Hatchback) 👋 Introduction Market Position Positioning: The 2012 Subaru Impreza WRX STI represents a highly focused performance variant within the compact car segment, catering to enthusiasts seeking rally-inspired driving dynamics and turbocharged power. Competitive Analysis Competitors: Competed against models like the Mitsubishi Lancer Evolution, Ford Focus RS (in some markets), Volkswagen Golf GTI/R, and the Mazdaspeed3. Key Features Performance Focus: Signature Symmetrical All-Wheel Drive, potent turbocharged boxer engine, performance-tuned suspension, driver-centric cockpit. Manual Value Proposition: Provides detailed, accurate information essential for maintaining the peak performance and reliability of this enthusiast-focused vehicle, empowering owners and independent mechanics. 📋 Manual Details Coverage Areas General Coverage: All mechanical and electrical systems, maintenance, repair, and troubleshooting. Page Count Estimated Page Count: 1500+ Manual Type Type: Service and Repair Manual Language Language: English Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine (EJ257), Transmission (6-speed Manual), Drivetrain (Symmetrical AWD), Fuel System, Exhaust System. Chassis: Suspension (Front: MacPherson Strut, Rear: Double Wishbone), Steering (Power Rack and Pinion), Brakes (ABS, Brembo calipers), Wheels and Tires. Electrical: Wiring Diagrams, Lighting, Ignition, Starting System, Charging System, Body Electronics, Instrument Cluster, Audio System. Body And Interior: Body Panels, Doors, Windows, Seats, HVAC System, Safety Restraints (Airbags, Seatbelts). Procedures Included Maintenance: Routine checks, fluid changes (oil, coolant, brake fluid), filter replacements, spark plug replacement, belt inspection/replacement. Diagnostics: Troubleshooting guides, symptom-based diagnostics, DTC (Diagnostic Trouble Code) interpretation, component testing. Repair Procedures: Engine overhaul, transmission rebuild, brake caliper replacement, suspension component replacement, electrical component repair. Specifications And Data: Torque specifications, clearances, fluid capacities, electrical parameters, diagnostic values. Technical Depth Depth: Comprehensive from basic fluid checks and tire rotations to complete engine and transmission rebuilds, including detailed wiring schematics and diagnostic procedures. 📊 Manual Specifications File Format File Type: PDF Searchable: Yes Printable: Yes Print Quality Quality: High-resolution scans of original manufacturer documentation. Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: EJ257 Engine Type: 2.5L Turbocharged Boxer-4 Displacement: 2457 cc (2.5 Liters) Bore X Stroke: 99.5 mm x 79.0 mm Compression Ratio: 8.2:1 Performance Horsepower: 305 hp @ 6000 rpm (SAE Net) Torque: 290 lb-ft @ 4000 rpm (SAE Net) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) with Electronic Throttle Control (ETC) Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Engine Components Turbocharger: IHI VF52 (Variable Geometry) Intercooler: Top-mount, air-to-air 🔧 Transmission Standard Transmission Type: 6-Speed Manual Transmission (TY856UR1MA) Optional Optional Transmission: N/A (Only Manual Available for WRX STI) Features Drivetrain: Symmetrical All-Wheel Drive (SAWD) with Driver Controlled Center Differential (DCCD) Differential Lock: Front Helical Limited Slip Differential (LSD), Rear Mechanical Limited Slip Differential (LSD) Fluid Specifications Manual Transmission Fluid: Subaru Genuine Gear Oil (GL-4) or equivalent, 2.7 liters (Approx.) 📐 Dimensions Exterior Length: 173.8 inches (4415 mm) Width: 70.7 inches (1795 mm) Height: 58.1 inches (1475 mm) Wheelbase: 103.0 inches (2615 mm) Track Width Front: 60.4 inches (1535 mm) Track Width Rear: 60.4 inches (1535 mm) Ground Clearance: 5.1 inches (130 mm) Weights Curb Weight: Approx. 3,373 lbs (1530 kg) Gross Vehicle Weight Rating Gvwr: Approx. 4,500 lbs (2041 kg) Cargo Cargo Volume: 11.3 cu ft (320 Liters) 🛡️ Safety Features Ratings NHTSA Front Crash Rating: 5 Stars NHTSA Side Crash Rating: 5 Stars NHTSA Rollover Rating: 4 Stars Active Features ABS: Standard 4-wheel Anti-lock Braking System (ABS) Traction Control: Standard Traction Control System (TCS) Electronic Stability Control: Standard Vehicle Dynamics Control (VDC) Passive Features Airbags: Driver and front passenger airbags, front side-impact airbags, side curtain airbags (front and rear). Seatbelts: 3-point front and rear seatbelts with pretensioners and force limiters. Child Anchors: Lower Anchors and Tethers for CHildren (LATCH) system. 💡 Technology Features Infotainment Head Unit: Standard AM/FM/CD stereo with auxiliary input and optional navigation system. Audio System: 6-speaker audio system. Driver Assistance Cruise Control: Standard electronic cruise control. Connectivity Bluetooth: Available Bluetooth hands-free connectivity (optional feature). Instrumentation Gauge Cluster: Performance-oriented gauge cluster with boost gauge, tachometer, and multi-function display. 🔧 Maintenance Service Intervals Engine Oil And Filter: Every 3,750 miles or 3 months (severe duty) or 7,500 miles or 6 months (normal duty). Engine Air Filter: Inspect every 7,500 miles, replace as needed. Replace at 30,000 miles (normal duty). Cabin Air Filter: Replace every 15,000 miles or 12 months. Spark Plugs: Replace every 30,000 miles for iridium-tipped plugs. Timing Belt Or Chain: Uses a timing chain, generally maintenance-free. Inspect tensioner and guides if issues arise. Brake Fluid: Replace every 30,000 miles or 3 years. Coolant: Subaru Super Coolant (Blue). Replace at 30,000 miles or 3 years for initial change, then every 30,000 miles or 2 years thereafter. Fluid Specifications Engine Oil: SAE...