🏷️ Basic Information

Make:

Subaru

Model:

Forester

Generation:

Second Generation (SG)

Model Code:

SG

Chassis Code Examples:

SG5, SG9

👋 Introduction

Segment:

Compact Crossover SUV

Target Audience:

Enthusiasts, DIY mechanics, independent repair shops seeking authentic factory service information.

Key Competitors 2003-2004:

Honda CR-V, Toyota RAV4, Ford Escape, Mazda Tribute, Nissan Xterra

Vehicle Differentiation:

Standard Symmetrical All-Wheel Drive, boxer engine layout, practical cargo space, go-anywhere capability for its class.

Manual Value Proposition:

Provides the same detailed information as used by Subaru dealerships and certified technicians, empowering owners to perform complex repairs and maintenance accurately.

📋 Manual Details

Years Covered:

2003, 2004

Regions Covered:

Global (primarily North American and European specifications)

Estimated Pages:

1500+

Type:

Factory Service Repair Manual (Workshop Manual)

Language:

English

Format:

Digital (likely PDF, printable)

📖 Manual Coverage

Powertrain:

Engine mechanical, engine management, fuel system, exhaust system, cooling system, lubrication system, ignition system, turbocharging system (for XT models)

Drivetrain:

Manual transmission, automatic transmission, all-wheel drive system (Symmetrical AWD), differentials, driveshafts, wheel hubs

Chassis:

Suspension (front and rear), steering system, brake system (ABS, EBD), wheels and tires

Electrical:

Body electrical systems, lighting, instruments, audio system, power accessories (windows, locks, mirrors), climate control, engine control module (ECM), transmission control module (TCM), airbag system (SRS)

Body And Interior:

Exterior body panels, interior trim, seats, safety restraints, glass, doors, hood, tailgate

Maintenance:

Scheduled maintenance, oil changes, filter replacements, fluid checks and changes, spark plug replacement, belt replacement

Repair:

Component disassembly and reassembly, major component overhaul, sensor replacement, wiring harness repair, body panel repair, suspension component replacement, brake caliper and rotor service

Diagnostics:

Troubleshooting guides, symptom-based diagnostics, diagnostic trouble codes (DTCs), diagnostic connector pinouts, testing procedures for sensors and actuators

Specifications And Tolerances:

Torque specifications, clearances, alignment data, fluid capacities, electrical resistance values, pressure specifications

Depth:

Comprehensive, covering everything from basic fluid changes to complete engine and transmission rebuilds. Includes detailed wiring diagrams and diagnostic flowcharts.

📊 Manual Specifications

Digital Format Details:

Likely a PDF document, optimized for searching and printing. May include hyperlinked sections for easy navigation.

Illustration Quality:

High-quality, clear, and detailed illustrations and diagrams.

Digital Binding:

N/A (digital format)

Digital Paper Simulation:

N/A (digital format)

⚙️ Engine Specifications

Engine Code Na:

EJ253

Engine Type Na:

2.5L SOHC Naturally Aspirated Flat-4 (Boxer)

Horsepower Na Approx:

165 hp @ 5600 rpm

Torque Na Approx:

166 lb-ft @ 4000 rpm

Engine Code Turbo:

EJ255

Engine Type Turbo:

2.5L DOHC Turbocharged Flat-4 (Boxer)

Horsepower Turbo Approx:

210 hp @ 5600 rpm

Torque Turbo Approx:

235 lb-ft @ 3600 rpm

Fuel Delivery:

Electronic Fuel Injection (MPI)

Fuel Type:

Unleaded gasoline (87 octane recommended, 91 octane recommended for XT model)

ECM Type:

Denso or Hitachi ECU (specific part numbers vary)

🔧 Transmission

Transmission Type Na:

5-Speed Manual Transmission

Transmission Type Optional:

4-Speed Automatic Transmission (with Sportshift on some models)

AWD System:

Symmetrical All-Wheel Drive (mechanical or electronically controlled center differential depending on transmission)

Manual Transmission Fluid:

API GL-5, SAE 75W-90 Gear Oil

Automatic Transmission Fluid:

Subaru ATF HP (or equivalent Dexron III/Mercon)

📐 Dimensions

Wheelbase:

103.1 inches (2619 mm)

Length:

177.4 inches (4506 mm)

Width:

69.7 inches (1770 mm)

Height:

65.2 inches (1656 mm)

Ground Clearance:

8.0 inches (203 mm)

Curb Weight Approx:

3200 - 3500 lbs (1450 - 1588 kg), varies by trim and drivetrain

Cargo Volume Behind Rear Seats:

32.1 cubic feet (0.91 cubic meters)

Cargo Volume With Rear Seats Folded:

64.7 cubic feet (1.83 cubic meters)

🛡️ Safety Features

NHTSA Front Impact Driver:

5-star (2003 model)

NHTSA Front Impact Passenger:

5-star (2003 model)

NHTSA Side Impact Front Driver:

5-star (2003 model)

NHTSA Side Impact Front Passenger:

5-star (2003 model)

NHTSA Side Impact Rear Driver:

5-star (2003 model)

NHTSA Side Impact Rear Passenger:

5-star (2003 model)

Standard Active Safety:

Symmetrical All-Wheel Drive, Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD)

Standard Passive Safety:

Front airbags, front side-impact airbags, height-adjustable front seatbelts, LATCH child seat anchors

Optional Passive Safety:

Curtain airbags (availability varies by trim and market)

💡 Technology Features

Audio System:

Factory AM/FM/CD player, optional premium audio with amplifier and subwoofer (depending on trim level).

Display:

Basic digital display for clock, temperature, and audio information. No central touchscreen infotainment system.

Assistance Features:

Primarily relies on mechanical systems like AWD and ABS. No advanced driver-assistance systems (ADAS) like adaptive cruise control or lane-keeping assist.

Connectivity Options:

Limited to basic auxiliary inputs for portable audio devices on some later models or aftermarket installations. No Bluetooth or USB integration from the factory.

🔧 Maintenance

Oil Change Interval:

Every 3,750 miles (6,000 km) or 3 months (severe conditions), 7,500 miles (12,000 km) or 6 months (normal conditions). Check owner's manual for specifics.

Engine Air Filter Replacement:

Every 15,000 miles (24,000 km) or 12 months.

Spark Plug Replacement Na:

Every 60,000 miles (96,000 km) with iridium-tipped plugs.

Automatic Transmission Service:

Every 30,000 miles (48,000 km) or 24 months, replace filter at 60,000 miles (96,000 km).

Engine Oil Specification:

API SG/SH/SJ/SL, ILSAC GF-2/GF-3, SAE 5W-30 (check specific engine for viscosity recommendations).

Coolant Specification:

Subaru Super Coolant (blue) or equivalent ethylene glycol-based coolant with Subaru additives, mixed 50/50 with distilled water.

Brake Fluid Specification:

DOT 3 or DOT 4 brake fluid.

Head Gasket Leaks:

While less prevalent than on earlier generations, head gasket seepage or leaks can occur, particularly on higher-mileage naturally aspirated engines.

Oil Consumption:

Some EJ25 engines, especially the naturally aspirated variants, can exhibit higher than average oil consumption. Regular checks are crucial.

Catalytic Converter Concerns:

Premature failure of the catalytic converter can occur due to engine misfires or oil burning, leading to performance issues and check engine lights.

Rear Wheel Bearing Noise:

Rear wheel bearings are a known wear item and can develop noise over time, particularly after encountering potholes or harsh conditions.

📚 Vehicle History

Subaru Legacy Connection:

The Forester originated as a more utilitarian, taller version of the Subaru Legacy station wagon, emphasizing AWD capability and practicality.

First Generation Introduction:

Introduced in 1997 (Japan), 1998 (North America) as the 'Sport Utility Wagon'.

Second Generation Launch:

The SG generation debuted in late 2002 for the 2003 model year, featuring a significant redesign with a more car-like appearance and improved interior.

Facelift Impact:

The 2005 model year saw a facelift for the SG generation, but this manual specifically covers the pre-facelift 2003-2004 models.

Manufacturing Locations:

Japan (Ota Plant)

🏆 Awards & Recognition

Car And Driver Odi:

Car and Driver's '10Best Trucks' list in 2003.

Iku Award:

Recognized for its combination of SUV utility and car-like handling.