🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 2009 Sub Models: Impreza, Impreza WRX, Impreza WRX STi 👋 Introduction Market Position Segment: Compact Performance Sedan/Hatchback Competitors: Mitsubishi Lancer Evolution, Volkswagen GTI, Mazdaspeed3, Honda Civic Si. Key Features Driving Experience: Known for its Symmetrical All-Wheel Drive system, turbocharged engines (WRX/STi), and rally-inspired performance heritage. Performance Variants: The WRX offers a significant performance upgrade over the standard Impreza, while the WRX STi represents the pinnacle of Impreza performance with a more powerful engine, enhanced suspension, and larger brakes. Diy Focus: Explicitly marketed as 'COMPLETE & INFORMATIVE for DIY REPAIR', emphasizing its suitability for home mechanics. 📋 Manual Details Coverage Areas Coverage Scope: All models and configurations of the 2009 Subaru Impreza, Impreza WRX, and Impreza WRX STi. Page Count Estimated Page Count: Likely exceeds 2000 pages (typical for a comprehensive workshop manual for this era). Manual Type Type: Workshop Repair and Service Manual Language Language: English Format Format: PDF (Cross-platform compatible) 📖 Manual Coverage Systems Covered Engine Management: Engine overhaul, disassembly, reassembly, fuel systems, lubrication systems, cooling systems, ignition systems, emissions control, engine diagnostics, engine tune-up. Drivetrain: Transmission (manual/automatic), clutch service, drive shafts, CV joints, differentials, gearbox overhaul and installation, transmission fluid specifications. Chassis And Suspension: Front and rear suspension systems, steering system, wheel alignment, chassis assembly, shock absorbers, springs, bushings, control arms. Brakes: Brake system diagnostics, repair, hydraulic systems, ABS, brake pad/rotor replacement, caliper service, brake fluid specifications. Electrical System: Complete wiring diagrams, starter system, charging system, battery maintenance, lighting systems, fuses, relays, body control modules, diagnostic trouble codes (DTCs). Bodywork And Interior: Body panel repair, interior trim removal/installation, seat systems, HVAC system, doors, windows, safety restraints. Exhaust System: Service and diagnosis of the exhaust system, including catalytic converters and mufflers. Fuel System Service: Fuel pump testing, injector cleaning, fuel filter replacement, and fuel system pressure checks. Lubrication Points: Identification and specifications for all lubrication points on the vehicle. Procedures Included Maintenance: Periodic maintenance schedules, oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt replacement. Repair: Detailed step-by-step repair procedures for virtually all mechanical and electrical components. Troubleshooting: Fault-finding guides, symptom-based diagnostics, diagnostic trouble code (DTC) explanations and procedures. Engine Removal Installation: Detailed procedures for removing and installing the engine and transmission assemblies. Chassis Assembly Service: Procedures for servicing and inspecting chassis components, including welding and frame straightening guidelines if applicable. Bodywork Repair: Guidelines for body panel replacement, dent repair, and rust prevention, often including diagrams for panel removal and installation. Technical Depth Depth: Comprehensive coverage ranging from basic DIY maintenance to advanced engine rebuilds, transmission overhauls, and complex electrical diagnostics. Includes factory specifications and procedures. Diagnostic Tools: Information on using Subaru's proprietary diagnostic tools (e.g., Subaru Select Monitor) and OBD-II scanners. Tightening Torques: Specific torque values for all critical fasteners, essential for accurate assembly and preventing component failure. Wiring Diagrams: Comprehensive and detailed color wiring diagrams for all vehicle electrical systems, allowing for precise troubleshooting. Illustrations Diagrams: Abundant high-quality illustrations, photographs, and exploded-view diagrams to aid in understanding complex procedures. 📊 Manual Specifications File Format File Type: PDF Print Quality Printability: Printable, with high-resolution diagrams and text for clear reproduction. Binding Type Binding: N/A (Digital download - PDF) Paper Type Paper Quality: N/A (Digital download - PDF) ⚙️ Engine Specifications Primary Engine Impreza Base: 2.5L Naturally Aspirated Flat-4 (EJ253) Impreza Wrx: 2.5L Turbocharged Flat-4 (EJ255) Impreza Wrx Sti: 2.5L Turbocharged Flat-4 (EJ257) with intercooler and Subaru's advanced engine management system. Performance Impreza Base Hp: ~170 hp Impreza Wrx Hp: ~265 hp Impreza Wrx Sti Hp: ~305 hp Fuel System Fuel Type: Unleaded gasoline (premium unleaded recommended for WRX/STi) Injection: Electronic Fuel Injection (EFI) 🔧 Transmission Standard Impreza Base: 5-speed Manual Impreza Wrx: 5-speed Manual Impreza Wrx Sti: 6-speed Manual (STi specific) Optional Impreza Base: 4-speed Automatic Features AWD System: Symmetrical All-Wheel Drive 📐 Dimensions Exterior Body Styles: 4-door Sedan, 5-door Hatchback Wheelbase: ~103.0 inches Weights Curb Weight Range: ~3100 - 3400 lbs (depending on model and trim) 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (for most models/configurations) IIHS Roof Strength: Good (for most models/configurations) Active Features Traction Control: Standard (VDC - Vehicle Dynamics Control) ABS: Standard Anti-lock Braking System Passive Features Airbags: Front, side-curtain, and front-seat side airbags. 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD stereo with available auxiliary input, and optional navigation system. Driver Assistance Vehicle Dynamics Control: Standard VDC system integrates ABS, traction control, and stability control for enhanced vehicle handling and safety. Connectivity Usb Auxiliary: Auxiliary audio input jack standard, Bluetooth connectivity optional on higher trims. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,750 miles or 6 months (severe conditions) or 7,500 miles or 12 months (normal conditions), consult manual for specifics. Timing Belt Interval: For naturally aspirated EJ253, 105,000 miles or 105 months. WRX/STi models typically use timing...