🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 2006 Codes Chassis Code: GDB (for WRX STI, WRX) / GD (for non-turbo models) Platform: Subaru Global Platform (This is a placeholder as 2006 Impreza was on the 'GD' platform, which predates the Global Platform; the manual would cover the GD platform) 👋 Introduction Market Position Segment: Compact Car / Performance Compact Usp: Symmetrical All-Wheel Drive (standard on most trims), rally-inspired performance (WRX/STI variants) Competitive Analysis Competitors: Honda Civic Si, Mitsubishi Lancer Evolution (closest performance rival), Volkswagen GTI, Mazdaspeed3 Key Features Design Philosophy: Robust, practical, and performance-oriented, often with aggressive styling for WRX/STI models Target Demographic: Enthusiasts, drivers seeking all-weather capability and performance 📋 Manual Details Coverage Areas Primary Focus: Repair and Service Procedures Intended Audience: Professional Technicians and Enthusiast DIYers Page Count Estimated Pages: Over 2000 pages (typical for comprehensive factory service manuals) Manual Type Type: Factory Service Manual (FSM) / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, cylinder head, pistons, crankshaft, lubrication system, cooling system, timing belt/chain, seals, gaskets Engine Performance: Fuel delivery, ignition system, emissions control, turbocharging (for WRX/STI models), variable valve timing (VVT) Transmission Manual: Clutch system, gear shifting mechanisms, internal components, fluid specifications, service procedures Transmission Automatic: Torque converter, planetary gears, hydraulic control, solenoids, fluid specifications, service procedures Drivetrain: All-Wheel Drive (AWD) system, center differential, rear differential, driveshafts, CV joints, wheel bearings Suspension: Front and rear suspension components, struts, shocks, control arms, sway bars, bushings, alignment specifications Steering: Power steering system, steering rack, tie rods, steering column, alignment specifications Brakes: Brake system components (discs, pads, calipers, master cylinder, ABS), hydraulic lines, bleeding procedures, parking brake Electrical System: Battery, charging system, starter, lighting system, power windows, mirrors, locks, wipers, horn Body And Chassis: Body panel removal/installation, doors, hood, trunk, interior trim, chassis lubrication, corrosion prevention HVAC: Heating, Ventilation, and Air Conditioning (HVAC) system, refrigerant, compressor, evaporator, heater core, controls Safety Systems: Airbag system, seat belt pre-tensioners, SRS wiring Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks/changes, spark plug replacement, air filter replacement Diagnostics And Troubleshooting: Diagnostic trouble codes (DTCs), symptom-based troubleshooting, electrical testing, mechanical testing Component Repair And Replacement: Detailed steps for replacing all major and minor components Rebuilding Procedures: Engine and transmission rebuilding specifications and procedures Technical Specifications Data: Torque values, clearances, fluid capacities, electrical specifications, diagnostic parameters Wiring Diagrams: Comprehensive electrical wiring schematics for all systems Technical Depth Depth: Comprehensive (Factory Level) Detail Level: Includes detailed disassembly, assembly, and diagnostic procedures with illustrations and schematics 📊 Manual Specifications File Format File Type: PDF Searchability: Text-searchable PDF Print Quality Printability: Printable (designed for printing individual sections or the entire manual) Binding Type Binding: N/A (Digital Download) Paper Type Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code Naturally Aspirated: EJ253 (2.5L SOHC) Engine Code Turbocharged: EJ255 (WRX) / EJ257 (STI) Displacement Naturally Aspirated: 2457 cc (2.5 Liters) Displacement Turbocharged: 2457 cc (2.5 Liters) Performance Horsepower Naturally Aspirated: Approx. 173 hp @ 5600 rpm (varies slightly by market/trim) Torque Naturally Aspirated: Approx. 166 lb-ft @ 4000 rpm Horsepower Wrx: Approx. 227 hp @ 5600 rpm Torque Wrx: Approx. 236 lb-ft @ 3600 rpm Horsepower Sti: Approx. 300 hp @ 6000 rpm Torque Sti: Approx. 300 lb-ft @ 4000 rpm Fuel System Fuel Type: Unleaded Gasoline (91+ Octane recommended for WRX/STI) Injection Type: Multi-port Fuel Injection (MPI) Forced Induction: Intercooled Turbocharger (WRX/STI models) 🔧 Transmission Standard Type Naturally Aspirated: 5-Speed Manual Type Turbocharged: 5-Speed Manual (WRX), 6-Speed Manual (STI) Optional Type Automatic: 4-Speed Automatic (available on some non-turbo trims) Features AWD System: Subaru Symmetrical All-Wheel Drive (Active Locking Center Differential on manual, viscous on automatic) Sti Dccd: Driver-Controlled Center Differential (DCCD) on STI models 📐 Dimensions Exterior Length: Approx. 173.8 inches Width: Approx. 68.1 inches Height: Approx. 56.1 inches Wheelbase: Approx. 99.9 inches Cargo Cargo Volume: Approx. 11.4 cu ft (Sedan) Weights Curb Weight: Approx. 2900 - 3300 lbs (varies by trim and transmission) 🛡️ Safety Features Ratings NHTSA Front Impact: Good (for both driver and passenger, 2006 models) IIHS Side Impact: Good (2006 models) IIHS Rear Impact: Acceptable (2006 models) Active Features ABS: Standard Traction Control: Available on some trims Electronic Stability Control: Available on some trims Passive Features Airbags Front: Standard Airbags Side Curtain: Available on some trims Seatbelts: 3-point with pre-tensioners 💡 Technology Features Infotainment Head Unit: Factory single-DIN or double-DIN radio with CD player, AM/FM tuner. Optional premium audio system. Display: Basic digital display for climate control and clock. No integrated navigation or touchscreens. Driver Assistance Cruise Control: Standard ABS: Standard Connectivity Aux Input: Available on some models via aftermarket or factory options Bluetooth: Not typically factory-equipped in 2006, but manual would cover wiring for aftermarket installations. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or...