🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX Year: 2005 Market Segment: Compact/Performance Sedan/Wagon Generation Chassis Code: GD/GG 👋 Introduction Market Position Positioning: Iconic Rally-Bred Performance Sedan/Wagon Competitive Analysis Competitors: Mitsubishi Lancer Evolution, Ford Focus RS, Volkswagen Golf GTI Key Features Performance Focus: Turbocharged Boxer Engine, Symmetrical All-Wheel Drive, Sport-Tuned Suspension Rally Heritage: Homologation Special for WRC Competition 📋 Manual Details Coverage Areas Engine Coverage: All Engine Variants (EJ255) Transmission Coverage: All Transmission Variants (5-Speed Manual, 4-Speed Automatic) Trim Level Coverage: All Trim Levels (WRX, WRX STI - specific model details may vary within WRX scope) Page Count Estimated Pages: 1500+ Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine (EJ255), Fuel System, Exhaust System, Cooling System, Lubrication System, Turbocharger System, Ignition System Drivetrain: Transmission (Manual/Automatic), Clutch, Drivetrain Components (Driveshafts, Differentials), All-Wheel Drive System (Symmetrical AWD) Suspension And Steering: Front and Rear Suspension, Steering Gear and Linkage, Power Steering System Body And Chassis: Body Panels, Doors, Hood, Trunk, Interior Trim, Chassis Components, Safety Structures Brakes Brake System: Front and Rear Brakes (Disc), ABS System, Parking Brake Electrical Electrical System: Battery, Charging System, Starting System, Ignition System, Lighting System, Instrumentation, Wiper/Washer System, Audio System, Power Accessories Procedures Included Maintenance: Scheduled Maintenance, Fluid Changes, Filter Replacements, Spark Plug Replacement, Belt Inspection/Replacement Diagnostics And Troubleshooting: Diagnostic Trouble Codes (DTCs), System Testing Procedures, Common Fault Diagnosis Repair And Overhaul: Engine Rebuilding, Transmission Overhaul, Suspension Component Replacement, Brake Component Replacement, Electrical Component Repair/Replacement Specifications And Adjustments: Torque Specifications, Clearances, Alignment Procedures, Fluid Capacities, Electrical Component Specifications Technical Depth Depth: Comprehensive (from basic maintenance to complete engine and transmission rebuilds, advanced diagnostics) 📊 Manual Specifications File Format Quality: High Resolution, Searchable Text Printability: Printable Pages Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Code: EJ255 Configuration: 2.5L Turbocharged Boxer-4 (Horizontally Opposed) Performance Horsepower Hp: 227 hp @ 5600 rpm (WRX) Torque Lb Ft: 236 lb-ft @ 3600 rpm (WRX) Fuel System Fuel Delivery: Multi-Point Fuel Injection (MPI), Electronic Throttle Control (ETC) Engine Management ECU: Engine Control Unit (ECU) with Variable Valve Timing (VVT) - Intake Side Turbocharger Turbo Model: IHI VF39 (Common for WRX) 🔧 Transmission Standard Transmission Type Std: 5-Speed Manual Transmission (TY757) Optional Transmission Type Opt: 4-Speed Automatic Transmission (4EAT) Features AWD System: Symmetrical All-Wheel Drive with Viscous Center Differential (Mechanical Front/Rear Differentials) 📐 Dimensions Exterior Wheelbase In: 101.4 Length In: 173.4 (Sedan) / 174.4 (Wagon) Width In: 69.7 Height In: 57.7 (Sedan) / 56.3 (Wagon) Weights Curb Weight Lbs: 3100-3200 (approx.) Towing Capacity Lbs: Not Specified/Recommended 🛡️ Safety Features Ratings NHTSA Frontal Driver Impact: Good NHTSA Frontal Passenger Impact: Good IIHS Moderate Overlap Frontal: Acceptable Active Features ABS: Standard Anti-lock Braking System Traction Control: Standard Passive Features Airbags: Frontal Airbags, Side Curtain Airbags (Optional on some models) Seatbelts: 3-Point Height-Adjustable Front Seatbelts with Pretensioners, Rear 3-Point Seatbelts 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD Player with 4-6 Speakers Navigation: Optional Factory Navigation System Driver Assistance Cruise Control: Standard Performance Instrumentation: Boost Gauge, Tachometer, Performance-Oriented Gauges Connectivity Auxiliary Input: Optional Auxiliary Audio Input 🔧 Maintenance Service Intervals Oil Change Miles: 3,750 - 7,500 miles (depending on driving conditions and oil type) Spark Plug Replacement Miles: 60,000 miles Timing Belt Replacement Miles: 105,000 miles (or 7 years) Fluid Specifications Engine Oil Type: SAE 0W-30 (Synthetic Recommended) Coolant Type: Subaru Super Coolant (Blue) or Equivalent (Phosphated Organic Acid Technology - P-OAT) Transmission Fluid Manual: Subaru Extra-S Gear Oil API GL-5 75W-90 (or equivalent high-quality synthetic) Transmission Fluid Automatic: Subaru ATF-HP (Genuine) Differential Fluid Front: Subaru Extra-S Gear Oil API GL-5 75W-90 (or equivalent high-quality synthetic) Differential Fluid Rear: Subaru Extra-S Gear Oil API GL-5 75W-90 (or equivalent high-quality synthetic) Brake Fluid Type: DOT 3 or DOT 4 Known Issues Head Gaskets: While not as prevalent as earlier generations, some EJ25 engines can experience head gasket leaks. Early detection is key. Piston Ringland Failure: Can occur with aggressive tuning or detonation. The manual will detail proper engine management and break-in procedures. Clutch Wear: Performance driving can accelerate clutch wear. Manual covers clutch inspection and replacement. Maintenance Tips Turbo Cooling: Allow turbo to cool down after hard driving to prevent oil coking. Manual details proper shut-down procedures. 📚 Vehicle History Brand Heritage Rally Legacy: Subaru's World Rally Championship (WRC) Success and Homologation Heritage Model Evolution Third Generation: Part of the GD/GG generation, known for significant chassis revisions and performance improvements Production Manufacturing Location: Japan 🏆 Awards & Recognition Recognitions Car And Driver 10Best: Often featured on Car and Driver's 10Best lists for its performance and value. Ratings Enthusiast Appreciation: Highly regarded by automotive enthusiasts for its driving dynamics and aftermarket potential.