🏷️ Basic Information Identification Make: Subaru Model: Impreza Year: 2005 Generation Generation Code: GDB Codes Platform: Subaru Global Platform (initially utilized elements later refined for G3/G4) 👋 Introduction Market Position Target Audience: Subaru Service Personnel, Professional Mechanics, Advanced DIY Enthusiasts Competitive Analysis Value Proposition: Provides authorized, factory-level diagnostic and repair procedures essential for maintaining the performance and longevity of the 2005 Impreza. Key Features Manual Purpose: To provide accurate and detailed information for correct maintenance and repair of Subaru vehicles. Delivery Download Speed: Instant Download 📋 Manual Details Coverage Areas Covered Models: 2005 Subaru Impreza (all trims and engine variants) Page Count Estimated Page Count: Extensive (typically over 1000 pages for a full factory service manual) Manual Type Manual Type: Factory Service Repair Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Systems: Fuel Injection, Emission Control, Intake, Mechanical, Exhaust, Cooling, Lubrication, Speed Control, Ignition, Starting-Charging, Diagnostics Transmission Systems: Automatic Transmission (H4SO, H4SOTC) Diagnostics, Manual Transmission and Differential (5-speed, 6-speed) Diagnostics, Clutch System Chassis Systems: Front Suspension, Rear Suspension, Wheel and Tire System, Differentials, Transfer Case, Drive Shaft System, ABS, ABS Diagnostics, Brake, Parking Brake, Power Steering Body Systems: HVAC, Auto AC Diagnostics, Airbag System, Airbag System Diagnostics, Seat Belt System, Lighting, Wiper and Washer, Entertainment, Communication, Glass/Windows/Mirrors, Body Structure, Instrumentation, Seats, Security and Locks, Sunroof, Exterior/Interior Trim, Exterior Body Panels, Cruise Control (H4SO, STI, H4DOTC), Immobilizer, Option Parts Electrical Systems: Wiring Diagrams, Starting-Charging Systems Procedures Included Maintenance Procedures: Pre-delivery Inspection, Periodic Maintenance Services, Adjustments Repair Procedures: Disassembling, Reassembling, Component Inspection Diagnostic Procedures: Engine Diagnostics, Transmission Diagnostics, ABS Diagnostics, HVAC Diagnostics, Airbag Diagnostics Technical Depth Depth: Comprehensive, suitable for experienced mechanics, covering diagnostics and detailed repair procedures. 📊 Manual Specifications File Format File Quality: High Quality PDF Print Quality Printability: All pages are printable Binding Type Binding: Digital Download (N/A for physical binding) Paper Type Paper Type: N/A (Digital PDF) Compatibility Software Requirements: Adobe PDF Reader, WinZip Operating Systems: All Versions of Windows, Mac, Linux ⚙️ Engine Specifications Primary Engine Engine Codes Covered: H4SO (Naturally Aspirated EJ253 variant), H4DOTC (Turbocharged EJ255/EJ257 for WRX STI) Performance Ej253 Output: Approx. 165-175 HP, 162-166 lb-ft Torque (N/A Impreza) Ej255 Ej257 Output: Approx. 227 HP (WRX), 300 HP (STI), Torque figures vary accordingly Fuel System Fuel Injection Type: Sequential Multi-Port Fuel Injection (MPI) Maintenance Timing Belt Replacement: Recommended every 60,000 to 105,000 miles or 5-7 years, depending on model and driving conditions (refer to manual for specifics). 🔧 Transmission Standard Manual Transmission Options: 5-speed manual, 6-speed manual (STI) Optional Automatic Transmission Options: 4-speed automatic (H4SO transmission code likely refers to a specific AT variant for naturally aspirated models). Features AWD System: Symmetrical All-Wheel Drive (standard on most trims) Fluid Specifications Manual Transmission Fluid: API GL-5, SAE 75W-90 (Subaru Extra-S or equivalent recommended) Automatic Transmission Fluid: Subaru ATF-HP (High Performance) or equivalent 📐 Dimensions Exterior Wheelbase: Approximately 104.0 inches (2642 mm) Weights Curb Weight: Varies by trim and engine, typically 3,000 - 3,400 lbs (1360 - 1540 kg) Towing Capacity: Not typically specified or recommended by Subaru for this model. 🛡️ Safety Features Ratings NHTSA Front Crash Test: 5-Star (for driver and passenger, depending on specific configuration and testing year) IIHS Front Offset Crash Test: 'Good' rating in frontal offset crash testing for many models in this generation. Active Features Active Safety Systems: All-Wheel Drive, ABS, Brake Assist Passive Features Passive Safety Features: Front Airbags, Side Curtain Airbags (optional/standard on certain trims), Seatbelt Pretensioners 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player, with optional premium audio systems and subwoofer available. Driver Assistance Cruise Control: Available on most models, with specific sections in the manual detailing its operation for different engine types. Connectivity Connectivity Features: Limited by modern standards; basic audio connectivity, no integrated Bluetooth or USB for this model year. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 3,750 to 7,500 miles or 6 months, depending on oil type and driving conditions (refer to manual for exact recommendation). Engine Air Filter Replacement: Inspect every 15,000 miles, replace as needed (typically around 30,000 miles). Fluid Specifications Engine Oil Type: SAE 5W-30 or 5W-40 (synthetic recommended), API SN or newer Coolant Type: Subaru Super Coolant (Blue) or equivalent silicate-free long-life coolant. Brake Fluid Type: DOT 3 or DOT 4 Known Issues Engine Gasket Leaks: Head gasket failures (especially on earlier EJ series engines, though improved by 2005), valve cover gasket leaks. Turbocharger Issues: Turbocharger failure due to oil starvation or lack of proper cool-down (STI/WRX models). Suspension Wear: Premature wear of control arm bushings and sway bar links, especially with aggressive driving. 📚 Vehicle History Brand Heritage Subaru AWD Legacy: Subaru is renowned for its Symmetrical All-Wheel Drive system, a core element of its brand identity since the 1970s, offering enhanced traction and stability. Model Evolution Impreza Positioning: The Impreza...