Segment:
Compact/Small Family Car (with performance variants like WRX and STI)
Brand Perception:
Known for its Symmetrical All-Wheel Drive (AWD) system and sporty driving dynamics, particularly in WRX and STI trims.
Competitors:
Honda Civic, Toyota Corolla, Mazda3, Mitsubishi Lancer, Volkswagen Golf.
AWD Standard:
Standard Symmetrical All-Wheel Drive across most trims, enhancing traction and handling.
Performance Variants:
Availability of highly acclaimed WRX and STI models with turbocharged engines and performance-tuned suspensions.
Value Proposition:
Provides DIY enthusiasts and owners with the same authoritative information found in official factory manuals at a significantly lower cost, enabling substantial savings on maintenance and repairs.
Content Benefit:
Empowers owners to perform complex tasks, diagnose issues accurately, and avoid unnecessary labor charges.
Primary Coverage:
Comprehensive service and repair for 2005 Subaru Impreza
Secondary Coverage:
Routine maintenance, diagnostics, component replacement, electrical systems, bodywork, HVAC
Estimated Pages:
Varies by specific factory publication, typically 1500-3000+ pages for complete factory service manuals.
Type:
Factory Service Manual / Repair Manual
Engine:
Detailed procedures for all engine variants, including disassembly, assembly, diagnosis, and repair of internal components, timing systems, lubrication, cooling, fuel, and emissions.
Transmission:
Covers manual and automatic transmissions, including removal, installation, overhaul, clutch systems, differential components, and driveshaft.
Brakes:
In-depth coverage of hydraulic systems, ABS, parking brake, brake pad/rotor replacement, caliper service, and bleeding procedures.
Suspension Steering:
Front and rear suspension components, steering rack, power steering system, wheel alignment specifications, and driveline components.
Electrical:
Comprehensive electrical schematics, diagnosis of ECUs, sensors, actuators, lighting systems, SRS (Supplemental Restraint System), starter, alternator, and battery.
Body Interior:
Body panel repair, door mechanisms, glass replacement, interior trim removal and installation, HVAC system, and climate control.
Routine Maintenance:
Oil and filter changes, fluid checks and replacements (coolant, brake fluid, power steering fluid, transmission fluid), air filter, cabin filter, spark plug replacement.
Tune Up:
Detailed tune-up procedures, including ignition timing adjustments (if applicable), fuel system checks, and emissions control system diagnosis.
Engine Repair:
Head gasket replacement, piston ring replacement, bearing service, valve adjustments, timing belt/chain replacement (engine specific), turbocharger service (for WRX/STI).
Transmission Repair:
Clutch replacement, manual gearbox overhaul, automatic transmission valve body service, seal replacement.
Diagnostics Troubleshooting:
Systematic diagnostic procedures for common faults, troubleshooting charts, error code interpretation.
Wiring Diagrams:
Complete electrical wiring diagrams for all vehicle systems, including connector pinouts and wire colors.
Depth:
Extremely detailed, covering everything from basic fluid services to complete engine and transmission rebuilds. Includes specifications, torque values, tolerances, and specialized procedures.
Base Engine:
2.5L EJ253 SOHC Flat-4 (Naturally Aspirated)
Base Engine Hp:
Approximately 165 hp
Base Engine Torque:
Approximately 166 lb-ft
Wrx Engine:
2.0L EJ205 DOHC Turbocharged Flat-4
Wrx Engine Hp:
Approximately 227 hp
Wrx Engine Torque:
Approximately 247 lb-ft
Sti Engine:
2.5L EJ257 DOHC Turbocharged Flat-4
Sti Engine Hp:
Approximately 300 hp
Sti Engine Torque:
Approximately 300 lb-ft
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Fuel Type:
Unleaded gasoline (Premium required for WRX/STI)
Configuration:
Horizontally-opposed (Boxer) engine
Length:
Approximately 173.8 inches (4415 mm)
Width:
Approximately 68.1 inches (1730 mm)
Height:
Approximately 56.1 inches (1425 mm)
Wheelbase:
Approximately 101.4 inches (2575 mm)
Curb Weight:
Varies by trim, typically 2800-3100 lbs (1270-1406 kg)
Sti Curb Weight:
Approximately 3200-3300 lbs (1451-1497 kg)
NHTSA Front Impact:
5-star (for driver and passenger)
IIHS Side Impact:
Good (for models with side airbags)
Traction Control:
Available traction control system (TCS) on some trims.
ABS:
Standard Anti-lock Braking System (ABS)
Airbags:
Front airbags, available front side airbags, available side curtain airbags.
Srs:
Supplemental Restraint System (SRS) including airbag system, pre-tensioners.
Oil Change Interval:
Every 3,750 to 7,500 miles (6,000 to 12,000 km) or 6 months, depending on driving conditions and oil type (refer to owner's manual for precise recommendations).
Transmission Fluid Change:
Automatic: Every 30,000 to 60,000 miles (48,000 to 97,000 km). Manual: Inspect periodically, fluid typically lasts longer but replacement is recommended around 60,000-100,000 miles.
Spark Plug Replacement:
Typically around 60,000 to 100,000 miles, depending on plug type (platinum/iridium).
Engine Oil:
SAE 5W-30 or 5W-40 (check owner's manual for specific viscosity and API certification, especially for turbo models).
Coolant:
Subaru Super Coolant (blue) or equivalent ethylene glycol-based coolant with corrosion inhibitors. Capacity approx. 6.4 quarts (6.1 L).
Brake Fluid:
DOT 3 or DOT 4 brake fluid.
Power Steering Fluid:
Subaru's genuine power steering fluid or Dexron III/Mercon ATF.
Head Gaskets:
While less prevalent in the EJ253 SOHC compared to earlier DOHC EJ25s, head gasket failures can still occur, particularly with high mileage or modified engines.
Turbo Failures:
For WRX/STI models, turbocharger oil starvation or seal failure can occur due to infrequent oil changes or abuse. Intercooler hoses can also develop leaks.
Clutch Wear:
The clutch can wear prematurely with aggressive driving, especially in performance models.
Suspension Components:
Bushings and ball joints can wear over time, leading to clunks or loose handling, especially on AWD components.
Subaru AWD Legacy:
Subaru has been a pioneer in All-Wheel Drive technology for passenger cars, dating back to the Subaru Leone in the 1970s.
Impreza Generations:
The 2005 model is part of the second generation (GD/GG chassis) Impreza, known for its rally-bred performance and adoption of turbocharged variants.
Performance Focus:
The introduction and continuous development of the WRX and STI models solidified the Impreza's reputation as a performance benchmark in its class.
Manufacturing Location:
Japan (primarily Gunma Prefecture)
