🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 2007 Codes Chassis Code: GD/GG Generation Code: Second Generation (GDB/GGB) 👋 Introduction Market Position Segment: Compact Car / Performance Compact Usp: Standard Symmetrical All-Wheel Drive, rally-inspired heritage, turbocharged performance variants (WRX). Competitive Analysis Key Competitors: Honda Civic, Toyota Corolla, Mazda3, Mitsubishi Lancer. Key Features Standard AWD: Subaru's signature Symmetrical All-Wheel Drive system provides enhanced traction and stability. Engine Options: Naturally aspirated and turbocharged Boxer engines known for their low center of gravity. Performance Variant: Subaru Impreza WRX and WRX STI offered significant performance upgrades. 📋 Manual Details Coverage Areas Primary Focus: Repair and Service Intended Audience: Professional Technicians and Experienced DIYers Page Count Estimated Pages: Over 2000 Manual Type Type: Factory Service Manual (FSM) Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical, fuel system, ignition system, cooling system, lubrication system, exhaust system, turbocharger system (if applicable). Transmission Drivetrain: Manual transmission, automatic transmission, all-wheel drive system (Symmetrical AWD), clutch, driveshafts, differentials. Chassis Suspension: Front and rear suspension, steering system, wheel alignment specifications, brake system (including ABS), parking brake. Electrical Electronics: Battery, charging system, starting system, lighting, instruments, audio system, climate control, power windows/locks, ECU/ECM diagnostics, wiring diagrams. Body Interior: Body panels, doors, windows, interior trim, seats, airbags, HVAC system. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, belt inspections. Diagnostic Troubleshooting: OBD-II codes, symptom-based diagnostics, electrical circuit tracing, component testing. Repair Replacement: Engine component overhaul, transmission rebuild, suspension component replacement, brake caliper service, electrical component repair. Special Procedures: Turbocharger diagnosis and repair, AWD system service, airbag system safety precautions and service, cylinder head removal and installation. Technical Depth Depth: Comprehensive, covering everything from basic adjustments to complete engine and transmission rebuilds, including detailed diagnostic trees and torque specifications. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content Print Quality Quality: High-resolution scans, suitable for printing Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code Naturally Aspirated: EJ253 Engine Type Naturally Aspirated: 2.5L Naturally Aspirated SOHC Flat-4 (Boxer) Displacement Naturally Aspirated: 2457 cc Horsepower Naturally Aspirated: 173 hp @ 5600 rpm Torque Naturally Aspirated: 166 lb-ft @ 4000 rpm Performance Engine Engine Code Wrx: EJ255 Engine Type Wrx: 2.5L Turbocharged DOHC Flat-4 (Boxer) Horsepower Wrx: 224 hp @ 5200 rpm Torque Wrx: 226 lb-ft @ 3000 rpm Engine Code Sti: EJ257 Engine Type Sti: 2.5L Turbocharged DOHC Flat-4 (Boxer) with Top-Mount Intercooler Horsepower Sti: 305 hp @ 5600 rpm Torque Sti: 290 lb-ft @ 4000 rpm Fuel System Injection Type: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline (91 Octane or higher recommended for WRX/STI) Turbocharger Specs: IHI VF39 (WRX), IHI VF43 (STI), Wastegate-controlled, Top-Mount Intercooler (STI). 🔧 Transmission Standard Transmission Type Naturally Aspirated: 5-Speed Manual Transmission Type Wrx: 5-Speed Manual Transmission Type Sti: 6-Speed Manual Optional Transmission Type Automatic: 4-Speed Automatic (Not available on WRX/STI) Features AWD System: Symmetrical All-Wheel Drive with Viscous Coupling Center Differential (Manual) or Electronically Controlled Multi-Plate Transfer Clutch (Automatic). Sti AWD Features: Driver Controlled Center Differential (DCCD) on STI. 📐 Dimensions Exterior Length: Approx. 173.4 inches Width: Approx. 69.7 inches Height: Approx. 57.7 inches (Sedan), 58.1 inches (Hatchback) Wheelbase: Approx. 104.0 inches Track Width Front: Approx. 59.3 inches Track Width Rear: Approx. 59.1 inches Ground Clearance: Approx. 6.1 inches Weights Curb Weight Est: 3000-3300 lbs (Varies by trim and transmission) Gross Vehicle Weight Rating Est: 4300 lbs 🛡️ Safety Features Ratings IIHS Front Crash Rating: Good (2007 Model) IIHS Side Impact Rating: Good (2007 Model) NHTSA Overall Rating: 4/5 Stars (NHTSA ratings varied by year and specific test) Active Features ABS: Standard Anti-lock Braking System E Brake Force Distribution: Electronic Brake-force Distribution (EBD) Traction Control: Standard Traction Control System (TCS) Stability Control: Optional Vehicle Stability Control (VSC) on some trims. Passive Features Airbags: Driver and front passenger airbags, front side-impact airbags, available side curtain airbags (depending on trim). Seatbelts: 3-point front seat belts with pre-tensioners and load limiters, 3-point rear seat belts. Child Seat Anchors: LATCH (Lower Anchors and Tethers for CHildren) system. 💡 Technology Features Infotainment Audio System: Standard AM/FM/CD player with 4 or 6 speakers. Optional premium audio systems and in-dash CD changers were available. Navigation: Factory navigation systems were optional on higher trims. Driver Assistance Cruise Control: Standard cruise control. Tire Pressure Monitoring: Tire Pressure Monitoring System (TPMS) was introduced on some models. Connectivity Auxiliary Input: Some models featured an auxiliary audio input jack for connecting portable music players. Bluetooth: Bluetooth connectivity was not commonly available from the factory on this model year. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or 6 months, whichever comes first (severe conditions), or 7,500 miles/12 months (normal conditions with synthetic oil). Engine Air Filter Replacement: Every 15,000-30,000 miles...