🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 2005 Codes Chassis Code: GDB (Subaru chassis code for the 3rd generation) Engine Codes: EJ205 (2.0L Turbocharged, WRX), EJ251/EJ253 (2.5L Naturally Aspirated) 👋 Introduction Market Position Positioning: The 2005 Subaru Impreza represented Subaru's compact car offering, known for its standard All-Wheel Drive (AWD) system and sporty WRX variant, appealing to enthusiasts and those seeking all-weather capability. Competitive Analysis Competitors: Honda Civic, Toyota Corolla, Mazda3, Mitsubishi Lancer, Volkswagen Golf. Key Features Driving Dynamics: Symmetrical All-Wheel Drive, horizontally opposed 'Boxer' engine contributing to a low center of gravity, responsive handling. Performance Variant: The WRX model offered significantly increased horsepower, sport-tuned suspension, and aerodynamic enhancements for rally-inspired performance. 📋 Manual Details Coverage Areas Primary Focus: North American Market, Global Variants Trim Levels Covered: 2.5i, Outback Sport, WRX Page Count Estimated Pages: 1500+ Manual Type Type: Factory Service Manual (FSM) / Workshop Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, engine control systems (ECU, sensors, actuators), fuel system, exhaust system, cooling system, lubrication system, ignition system, turbocharger (WRX), AWD system, manual transmission, automatic transmission. Chassis: Suspension (front struts, rear multi-link), steering system (power steering), brake system (ABS, rotors, pads, calipers), wheels, tires. Electrical: Vehicle electrical system, charging system, starting system, lighting, instrument cluster, HVAC controls, power accessories (windows, locks, mirrors), SRS airbag system, body control module (BCM), diagnostic trouble codes (DTCs). Body: Body panels, doors, windows, interior trim, seats, bumpers, exterior trim, glass. Procedures Included Maintenance: Oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt replacement, brake pad/rotor replacement, tire rotation. Diagnostics: Troubleshooting guides, symptom-based diagnostics, DTC interpretation, component testing procedures, wiring diagrams, pressure testing, scan tool usage. Repair Rebuild: Engine overhaul, transmission repair, clutch replacement, turbocharger assembly/disassembly, brake caliper rebuild, suspension component replacement, electrical component repair. Installation Replacement: Component replacement (alternator, starter, radiator, water pump), sensor replacement, body panel replacement, interior trim installation. Technical Depth Depth: Comprehensive, from basic preventative maintenance to complete engine and transmission rebuilds. Detailed electrical schematics and diagnostic trees. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text for quick information retrieval. Print Quality Diagram Quality: High-resolution diagrams, illustrations, and photographs. Binding Type Binding: N/A (Digital Format) Paper Type Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Naturally Aspirated Engine: 2.5L (2457cc) EJ251/EJ253 SOHC Boxer 4-cylinder Turbocharged Engine: 2.0L (1994cc) EJ205 DOHC Turbocharged Boxer 4-cylinder (WRX) Performance Na Horsepower: 165 hp @ 5600 rpm (EJ251/EJ253) Na Torque: 166 lb-ft @ 4000 rpm (EJ251/EJ253) Turbo Horsepower: 227 hp @ 5600 rpm (EJ205 - WRX) Turbo Torque: 217 lb-ft @ 4000 rpm (EJ205 - WRX) Fuel System Fuel Delivery: Multi-point fuel injection (MPFI) Fuel Type: Unleaded gasoline, 87 octane (91 octane recommended for WRX) 🔧 Transmission Standard Standard Transmission: 5-speed manual transmission Optional Optional Transmission: 4-speed automatic transmission (with electronically controlled AWD on some models) Features AWD System: Subaru Symmetrical All-Wheel Drive system (standard on all models) Clutch Type: Hydraulically actuated dry single-plate clutch (manual transmission) 📐 Dimensions Exterior Length: Approx. 174.5 inches (4430 mm) Width: Approx. 68.1 inches (1730 mm) Height: Approx. 56.1 inches (1425 mm) Wheelbase: Approx. 100.1 inches (2540 mm) Weights Curb Weight: Approx. 3000-3300 lbs (1361-1497 kg), varies by model and trim Cargo Trunk Volume: Approx. 11.6 cubic feet (Sedan), Approx. 19.1 cubic feet (Wagon rear seats up) 🛡️ Safety Features Ratings NHTSA Frontal Impact: ★★★★ (4-star driver, 4-star passenger for 2005 models) IIHS Frontal Offset: Good Active Features ABS: Standard Anti-lock Braking System (ABS) Traction Control: Available (often linked with automatic transmission) Passive Features Airbags: Frontal airbags, available front side-impact airbags. Seatbelts: 3-point front and rear seatbelts, pretensioners and load limiters for front seats. 💡 Technology Features Infotainment Head Unit: Standard AM/FM/CD player, optional premium audio systems. Basic digital display for clock and radio. Climate Control: Manual or automatic climate control systems, depending on trim level. Driver Assistance Cruise Control: Standard on most models. Connectivity Auxiliary Input: Not standard; aftermarket solutions common. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or 6 months, whichever comes first, under severe driving conditions; 7,500 miles or 6 months under normal conditions (check owner's manual for specific recommendations). Timing Belt Replacement: Every 105,000 miles or 7 years, whichever comes first (for EJ251/EJ253 engines with timing belts). The EJ205 (WRX) also has a timing belt. Fluid Specifications Engine Oil Type: API SG or SH rated, SAE 5W-30 synthetic blend or full synthetic. For WRX, SAE 5W-30 full synthetic is highly recommended. Coolant Type: Subaru Super Coolant (blue color) or equivalent ethylene glycol-based coolant with deionized water. Mix ratio 50/50. Transmission Fluid Manual: API GL-5, SAE 75W-90 gear oil. Transmission Fluid Automatic: Subaru ATF-HP or equivalent Dexron III-H compatible fluid. Brake Fluid Type: DOT 3 or DOT 4 brake fluid. Known Issues Head Gaskets: While less prevalent...