Vehicle Segment:
Compact Crossover SUV
Target Audience:
Families, outdoor enthusiasts, and individuals seeking a practical, all-weather capable vehicle.
Key Competitors 2003 2004:
Honda CR-V, Toyota RAV4, Ford Escape, Mazda Tribute, Nissan Xterra.
Differentiating Features:
Standard Symmetrical All-Wheel Drive, horizontally-opposed Boxer engine, excellent visibility, cargo versatility.
Manual Value Proposition:
Comprehensive coverage ensures owners and technicians can perform all maintenance and repairs accurately and efficiently, saving time and money.
Manual Type:
Official Service and Repair Manual
Completeness:
Complete, covering all details on the specified models and engines.
Models Covered:
All Subaru Forester models produced for the 2003 and 2004 model years.
Engine Variants Covered:
All engine variants for the 2003-2004 Forester, including naturally aspirated and turbocharged variants.
Estimated Page Count:
Approximately 2500-3000 pages (typical for a complete factory service manual).
Engine:
Detailed diagnostics, repair procedures, specifications, and overhaul for naturally aspirated and turbocharged Boxer engines (EJ253, EJ255).
Transmission:
Service and repair for both manual (5-speed) and automatic (4-speed) transmissions, including fluid types, capacities, and overhaul.
Drivetrain:
Complete coverage of Subaru's Symmetrical All-Wheel Drive (AWD) system, including differentials, driveshafts, and wheel bearings.
Suspension:
Front and rear suspension systems, including struts, springs, control arms, bushings, and alignment specifications.
Brakes:
Detailed procedures for hydraulic brake systems (front discs, rear discs or drums depending on trim), ABS, parking brake, and component replacement.
Steering:
Power steering system components, hydraulic pump, rack and pinion, and steering column service.
Electrical System:
Comprehensive wiring diagrams, component testing, fuse and relay locations, lighting, charging system, starting system, and power distribution.
Fuel System:
Fuel pump, injectors, fuel filter replacement, evaporative emissions control (EVAP), and fuel tank service.
Cooling System:
Radiator, thermostat, water pump, hoses, and coolant specifications.
HVAC:
Air conditioning system service, heater core, blower motor, and climate control system troubleshooting.
Body And Frame:
Body panel removal and installation, interior trim, glass replacement, and chassis specifications.
Restraint Systems:
Airbag system components, sensors, and diagnostic procedures.
Routine Maintenance:
Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, tire rotation.
Diagnostic Troubleshooting:
Step-by-step diagnostic procedures for common and complex issues, including fault code interpretation.
Major Repairs:
Engine overhaul, transmission rebuild, suspension component replacement, brake system overhauls.
Component Replacement:
Detailed instructions for replacing virtually every component on the vehicle.
Wiring Diagrams:
Comprehensive and easily readable wiring schematics for all vehicle systems.
Depth:
Factory-level technical detail, suitable for professional technicians and advanced DIY enthusiasts.
Data Precision:
Includes precise torque specifications, clearances, fluid capacities, and diagnostic parameters.
Engine Type Naturally Aspirated:
2.5L DOHC EJ253 'Boxer' 4-cylinder
Engine Type Turbocharged:
2.5L DOHC EJ255 'Boxer' 4-cylinder (turbocharged)
Performance Naturally Aspirated
Horsepower Ej253:
165 hp @ 5600 rpm
Torque Ej253:
166 lb-ft @ 4000 rpm
Horsepower Ej255:
210 hp @ 5600 rpm (XT model)
Torque Ej255:
235 lb-ft @ 3500 rpm (XT model)
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Recommended Fuel:
Unleaded 87 Octane (naturally aspirated), Unleaded 91 Octane (turbocharged)
ECU Type:
Subaru Engine Control Unit (ECU) with OBD-II diagnostics
NHTSA Front Impact Rating:
5-Star (Driver and Passenger)
IIHS Side Impact Rating:
Good (for models equipped with side airbags)
ABS:
Standard Anti-lock Braking System (ABS) on all models.
AWD:
Standard Symmetrical All-Wheel Drive for enhanced traction and stability.
Airbags:
Front dual-stage airbags; Optional front side-impact airbags and side-curtain airbags available on select trims.
Seatbelts:
3-point front and rear seatbelts with pre-tensioners and load limiters.
Oil And Filter Change:
Every 3,750 miles (6,000 km) or 3 months (under severe driving conditions), 7,500 miles (12,000 km) or 6 months (under normal driving conditions).
Engine Air Filter Replacement:
Every 15,000 miles (24,000 km) or 12 months.
Cabin Air Filter Replacement:
Every 15,000 miles (24,000 km) or 12 months.
Spark Plug Replacement:
Every 60,000 miles (96,000 km) for Iridium-tipped plugs.
Coolant Replacement:
Initial replacement at 60,000 miles (96,000 km), then every 30,000 miles (48,000 km) or 24 months thereafter.
Transmission Fluid Change Auto:
Refer to manual for specific intervals, typically 30,000-60,000 miles (48,000-96,000 km) depending on driving conditions.
Transmission Fluid Change Manual:
Refer to manual for specific intervals, typically 60,000-100,000 miles (96,000-160,000 km).
Engine Oil Type:
SAE 5W-30 Synthetic (API SG or higher for NA, SH or higher for Turbo)
Engine Oil Capacity Na:
4.7 US qt (4.4 L) with filter change.
Engine Oil Capacity Turbo:
4.7 US qt (4.4 L) with filter change.
Coolant Type:
Subaru Super Coolant (Blue) or equivalent OAT/HOAT coolant, mixed 50/50 with distilled water.
Automatic Transmission Fluid:
Subaru ATF-HP (High Performance) or equivalentDexron III/Mercon compatible fluid.
Manual Transmission Fluid:
SAE 75W-90 (API GL-5) gear oil.
Differential Fluid Front Rear:
SAE 75W-90 (API GL-5) gear oil.
Head Gaskets:
While less prevalent than on earlier models, early SG Foresters can still be susceptible to head gasket leaks, particularly the EJ253 engine. The manual provides diagnostic and repair procedures.
Catalytic Converter:
Can degrade over time, affecting emissions and performance. Manual details inspection and replacement.
Rear Wheel Bearings:
Some models may experience premature wear. Manual covers inspection and replacement procedures.
Turbocharger Issues Xt:
On the XT models, regular maintenance is crucial to prevent turbocharger issues. The manual details proper lubrication and potential failure points.
Subaru Philosophy:
Subaru's long-standing commitment to safety, reliability, and all-wheel-drive technology.
Second Generation Introduction:
The second generation (SG) Forester debuted for the 2003 model year, introducing a more modern design and improved platform.
Key Updates 2003 2004:
Significant exterior styling revisions, a refined interior, and the introduction of the turbocharged XT model for enhanced performance.
Manufacturing Location:
Gunma Prefecture, Japan