Vehicle Segment:
Compact Crossover SUV
Target Audience:
Families, outdoor enthusiasts, those seeking AWD capability in a versatile package
Key Competitors 2003:
Honda CR-V, Toyota RAV4, Ford Escape, Nissan X-Trail (market dependent)
Unique Selling Points:
Standard Symmetrical All-Wheel Drive, Boxer engine, excellent visibility, practical cargo space, robust chassis
Powertrain:
Engine mechanical, Engine control, Fuel system, Exhaust system, Transmission (Automatic & Manual), Drivetrain (AWD)
Chassis:
Suspension (front & rear), Steering, Brakes (ABS, Parking), Wheels & Tires
Electrical:
Body electrical, Powertrain control module (PCM), Instrument cluster, Lighting, HVAC controls, Audio system, Power accessories
Body:
Exterior body panels, Interior trim, Doors, Windows, Seats, HVAC system, Body sealing
Maintenance:
Scheduled maintenance, Fluid changes, Filter replacements, Lubrication points
Diagnostics:
Troubleshooting charts, Diagnostic trouble codes (DTCs), Component testing procedures, Wiring diagrams
Repair:
Engine overhaul, Transmission overhaul, Suspension component replacement, Brake caliper replacement, Electrical component repair
Specifications:
Torque specifications, Clearances, Component dimensions, Alignment specifications
Depth:
Comprehensive - covers basic maintenance to complete engine and transmission rebuilds.
Searchability:
Searchable text for quick information retrieval
Image Resolution:
High resolution for clear diagrams and illustrations
Printable:
Yes, individual sections or the entire manual can be printed
Binding Format:
Digital Download (not a physical book)
Engine Code:
EJ253 (or similar EJ25 variant)
Engine Type:
2.5L Naturally Aspirated Flat-Four (Boxer)
Bore X Stroke:
99.5 mm x 79.0 mm
Horsepower:
165 hp @ 5600 rpm
Torque:
166 lb-ft @ 4000 rpm
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Fuel Type:
Unleaded gasoline, 87 octane (91 recommended for optimal performance)
Ignition System:
Electronic Ignition with Distributorless Ignition System (DIS)
Emission Controls:
Catalytic converter, Oxygen sensors (O2), Secondary air injection system
Engine Oil Type:
SAE 5W-30 (API SJ or SL)
Engine Oil Capacity:
4.5 US quarts (4.3 liters) with filter
Coolant Type:
Subaru Super Coolant (blue) or equivalent (50/50 mix with distilled water)
Coolant Capacity:
Approx. 7.5 US quarts (7.1 liters)
Transmission Type:
4-Speed Automatic
Transmission Type:
5-Speed Manual
AWD System:
Symmetrical All-Wheel Drive (S-AWD)
Automatic AWD Distribution:
Active Torque Split AWD (ATTS) or viscous coupling center differential depending on specific model/trim.
Automatic Transmission Fluid Type:
Subaru ATF-HP or Dexron III/Mercon compatible
Manual Transmission Fluid Type:
API GL-5, SAE 75W-90 (Hypoid gear oil)
Length:
Approx. 177.0 inches (4496 mm)
Width:
Approx. 69.7 inches (1770 mm)
Height:
Approx. 63.0 inches (1600 mm)
Wheelbase:
Approx. 103.0 inches (2615 mm)
Ground Clearance:
Approx. 8.0 inches (203 mm)
Curb Weight:
Approx. 3200-3400 lbs (1450-1540 kg)
Gross Vehicle Weight Rating Gvw:
Approx. 4630 lbs (2100 kg)
Cargo Volume Behind Rear Seat:
Approx. 32.0 cu ft (906 L)
Cargo Volume With Rear Seat Folded:
Approx. 63.0 cu ft (1784 L)
NHTSA Frontal Crash Rating:
5-Star (driver & passenger)
NHTSA Side Impact Rating:
4-Star (front & rear passengers)
ABS:
Standard Anti-lock Braking System (ABS)
Traction Control:
Available Traction Control System (TCS) on some trims
Airbags:
Front airbags, available side airbags (check specific trim)
Seatbelts:
3-point height-adjustable front seat belts with pretensioners, rear 3-point seat belts
Child Seat Anchors:
LATCH (Lower Anchors and Tethers for Children) system
Audio System:
Base AM/FM/CD player, optional Premium Audio System with amplifier and subwoofer (check trim).
Climate Control:
Manual HVAC controls, optional Automatic Climate Control on higher trims.
Keyless Entry:
Available on most trims
Auxiliary Input:
Not standard. Some aftermarket head units may offer this.
Oil Change Interval:
Every 3,750 miles or 6 months (whichever comes first) for severe driving conditions; 7,500 miles or 12 months for normal driving (refer to owner's manual for specifics).
Air Filter Replacement:
Every 15,000 miles or 12 months (or as needed based on conditions).
Cabin Air Filter Replacement:
Every 15,000 miles or 12 months (or as needed).
Spark Plug Replacement:
Every 60,000 miles (iridium type).
Timing Belt Replacement:
Not applicable - Uses a timing chain.
Brake Fluid Type:
DOT 3 or DOT 4
Power Steering Fluid Type:
ATF Dexron II or Dexron III
Head Gaskets:
While less prevalent than earlier EJ engines, some 2003 models can still experience head gasket leaks. The manual will detail inspection and replacement procedures.
Wheel Bearings:
Front wheel bearings can wear prematurely. The manual covers diagnosis and replacement.
Cvt Issues:
N/A for 2003 models which exclusively used traditional automatic or manual transmissions.
Exhaust System Corrosion:
Common in areas with road salt, leading to rust and leaks. Manual provides diagrams for replacement.
Brand Focus:
Subaru's reputation for reliable AWD, boxer engines, and strong safety engineering.
Generation:
First Generation (1997-2002) / Second Generation (2003-2008)
Redesign Notes 2003:
The 2003 model year marked the beginning of the second generation, featuring a significant redesign with a larger, more modern body, improved interior, and updated powertrains.
Assembly Location:
Ota City, Gunma, Japan
IIHS Top Safety Pick:
The Forester generally performed well in IIHS tests for its era, earning 'Good' ratings in many categories, though specific 'Top Safety Pick' designations varied by year and testing criteria.
Car And Driver Best Small SUV:
While not always winning outright, the Forester was frequently a strong contender in comparison tests for its AWD and practicality.
