Vehicle Segment:
Compact Crossover SUV
Key Differentiators:
Symmetrical All-Wheel Drive (standard), boxer engine, Subaru's reputation for reliability and off-road capability in its class
Direct Competitors:
Toyota RAV4, Honda CR-V, Nissan X-Trail (Rogue), Mazda CX-5 (later models), Ford Escape
All Wheel Drive:
Standard Symmetrical All-Wheel Drive system provides enhanced traction and stability in various road conditions.
Engine Layout:
Horizontally-opposed (boxer) engine offers a lower center of gravity for improved handling.
Ground Clearance:
Class-leading ground clearance for its segment, aiding in light off-road use and all-weather driving.
Powertrain:
Engine mechanicals (EJ25, EJ251, EJ255, EJ257), fuel system, ignition system, exhaust system, engine management (ECU), automatic transmission (4EAT, 5EAT), manual transmission (5MT, 6MT)
Chassis:
Drivetrain (AWD system, differentials), suspension (front struts, rear multi-link), steering (power rack and pinion), brakes (ABS, EBD, disc/drum configurations), wheels and tires
Electrical:
Wiring diagrams, lighting, charging system, starting system, body electronics, HVAC controls, infotainment system, instrument cluster, SRS airbag system
Body:
Exterior body panels, interior trim, doors, windows, glass, roof, chassis structural components, collision repair procedures
Maintenance:
Oil changes, filter replacements, coolant service, spark plug replacement, brake fluid flush, transmission fluid service, differential fluid service, belt inspection and replacement
Repair:
Engine internal component replacement, transmission overhaul, suspension component replacement, brake caliper service, electrical component diagnosis and replacement, body panel repair and replacement
Troubleshooting:
Diagnostic trouble codes (DTCs), symptom-based diagnostics, electrical system troubleshooting, engine performance issues, transmission shifting problems
Depth:
Comprehensive from basic scheduled maintenance to complete engine and transmission rebuilds, including detailed diagnostics and wiring diagrams
Engine Code Na:
EJ251 / EJ253 (Naturally Aspirated)
Engine Code Turbo:
EJ255 / EJ257 (Turbocharged - WRX/STI variants not applicable for standard Forester 2005, but manual likely covers common EJ variants)
Displacement Na:
2.5 Liters (2457 cc)
Horsepower Na:
165 hp @ 5,600 rpm (EJ251/253)
Torque Na:
170 lb-ft @ 4,000 rpm (EJ251/253)
Compression Ratio:
9.7:1 (EJ251/253)
Bore X Stroke:
99.5 mm x 79.0 mm
Fuel Delivery:
Multi-point Fuel Injection (MPI)
Fuel Type:
Unleaded gasoline, 87 octane recommended (91+ for turbo variants if applicable)
Ignition System:
Electronic ignition, distributorless (coil-on-plug for some later EJ variants)
Timing Belt Replacement Interval:
105,000 miles or 105 months (critical maintenance item)
Recommended Oil Type:
SAE 0W-20 or 5W-30 (refer to manual for specific climate and usage)
Oil Capacity:
4.8 US quarts (with filter)
Transmission Type Na:
4-speed Automatic Transmission (4EAT)
Transmission Type Mt:
5-speed Manual Transmission (5MT)
AWD System Integration:
Electronically controlled AWD system for automatic transmission; mechanically coupled AWD for manual transmission.
Automatic Transmission Fluid Type:
Subaru ATF HP (or equivalent meeting Subaru specifications)
Manual Transmission Fluid Type:
API GL-5 SAE 75W-90 gear oil
Transfer Case Fluid Type:
API GL-5 SAE 75W-90 gear oil
NHTSA Frontal Crash Rating:
5-star (driver and passenger)
NHTSA Side Impact Rating:
5-star (front and rear passengers)
IIHS Top Safety Pick:
Yes (for its time)
ABS:
Standard Anti-lock Braking System (ABS)
Ebd:
Electronic Brake-force Distribution (EBD)
Airbags:
Front dual-stage airbags, front side-impact airbags, side curtain airbags (optional on some trims)
Seatbelts:
3-point height-adjustable front seat belts with pre-tensioners, rear 3-point seat belts
Child Seat Anchors:
LATCH (Lower Anchors and Tethers for Children) system
Audio System:
Standard AM/FM/CD player, optional premium audio system with subwoofer, CD changer capability.
Climate Control:
Manual or automatic climate control depending on trim level.
Cruise Control:
Standard cruise control.
Traction Control:
Traction Control System (TCS) available on some models/trims.
Auxiliary Input:
Rarely standard, often requires aftermarket modification for modern audio devices.
Oil And Filter Change:
Every 3,750 miles or 3.75 months, or 7,500 miles/7.5 months with synthetic oil and filter (consult manual for exact intervals based on driving conditions)
Engine Air Filter:
Inspect every 15,000 miles, replace as needed (or every 30,000 miles)
Cabin Air Filter:
Inspect every 15,000 miles, replace as needed (or every 15,000-30,000 miles)
Coolant Replacement:
Initial replacement at 30,000 miles, then every 30,000 miles thereafter (Subaru Blue Coolant recommended)
Brake Fluid:
DOT 3 or DOT 4
Power Steering Fluid:
Subaru Genuine Power Steering Fluid or equivalent (Dexron-III ATF is sometimes used, but specific Subaru fluid is preferred)
Windshield Washer Fluid:
Water and windshield washer fluid additive
Head Gaskets:
While the EJ25 engine is known for potential head gasket failures on earlier models, the SG Forester (post-2005 facelift) generally saw improvements, but it remains a watch item. The manual will detail inspection and replacement procedures.
Catalytic Converter:
Can be prone to failure due to oil consumption or overheating, leading to performance issues. Manual covers diagnosis.
Clutch Wear:
On manual transmission models, clutch wear can vary; the manual details clutch inspection and replacement.
Subaru Core Philosophy:
Focus on All-Wheel Drive, safety, and unique engineering (boxer engines, symmetrical AWD).
Forester Introduction:
First generation debuted in 1997, building on Subaru's Outback wagon and Impreza platform.
Second Generation Sg:
Introduced in 2002 (for MY2003), this generation (SG) featured a more SUV-like design, larger dimensions, and improved interior. The 2005 model is a facelifted version of this generation.
Manufacturing Location:
Gunma Plant, Japan
Consumer Reports Reliability:
Generally ranked as average to above average for reliability by consumer organizations during its production years. Specific 2005 ratings may vary.
Fuel Economy Ratings:
EPA estimates for 2005 Forester 2.5X (automatic): approx. 20 MPG city / 26 MPG highway. Manual transmission slightly different.
Emissions Certification:
Meets relevant EPA and California emissions standards for the model year.