Engine Mechanical:
Engine assembly, cylinder heads, crankshaft, pistons, connecting rods, timing belt/chain, lubrication system, cooling system, fuel delivery system (mechanical components).
Engine Electrical:
Ignition system, starting system, charging system, engine control unit (ECU), sensors (e.g., crankshaft position, camshaft position, MAF, MAP, O2), actuators (e.g., fuel injectors, ignition coils).
Transmission Manual:
Clutch system, gearbox (internal components), gear shift mechanism, lubrication.
Transmission Automatic:
Torque converter, planetary gear sets, valve body, hydraulic control system, transmission control module (TCM), cooler, lubrication.
Drivetrain:
Front and rear differentials, driveshafts, CV joints, AWD system components (if applicable).
Suspension:
Front and rear suspension components (struts, shock absorbers, control arms, bushings, ball joints, sway bars), wheel bearings.
Steering:
Steering rack/gearbox, power steering pump, steering column, tie rods, power steering fluid.
Brakes:
Front and rear brake systems (discs, pads, calipers, rotors), hydraulic system (master cylinder, brake lines, ABS unit), parking brake.
Electrical Chassis:
Lighting system (headlights, taillights, interior lights), power windows, power locks, mirrors, wipers, horn, fuse box diagrams, relay locations.
HVAC:
Heating, ventilation, and air conditioning system components, refrigerant system, blower motor, controls.
Body Exterior:
Body panel removal/installation, door mechanisms, hood, trunk lid, bumpers, glass replacement.
Body Interior:
Dashboard removal, seat removal, trim panels, headliner, carpeting.
Diagnostics Troubleshooting:
Diagnostic trouble codes (DTCs), symptom-based troubleshooting guides, electrical circuit diagrams.
Routine Maintenance:
Oil change, filter replacements (oil, air, fuel, cabin), spark plug replacement, fluid checks and top-offs, tire rotation.
Component Removal Installation:
Detailed step-by-step instructions for removing and reinstalling virtually all major components covered in the 'systems_covered' section.
Rebuild Procedures:
Instructions for rebuilding engines, transmissions, differentials, and other complex mechanical assemblies.
Electrical Diagnostics:
Wiring diagrams, component testing procedures, circuit tracing, connector pinouts.
Tightening Specifications:
Torque specifications for critical fasteners across all systems.
Special Tools:
Identification and usage of specialized tools required for specific repair or maintenance tasks.
Diagnostic Troubleshooting:
Comprehensive guides for diagnosing and resolving common and complex issues, often including flowcharts and symptom-based approaches.
Rebuild Information:
Detailed procedures for complete overhauls of major mechanical components like engines and transmissions, including specifications for wear limits and clearances.
Schematics Diagrams:
Inclusion of detailed electrical wiring diagrams, vacuum hose routing diagrams, and exploded views of assemblies.
Transmission Type 2.5I:
5-Speed Manual
Optional Transmission 2.5I
Transmission Type 2.5I Auto:
4-Speed Automatic
Transmission Type Gt:
5-Speed Manual (standard on GT trims)
Transmission Type Gt Auto:
4-Speed Automatic (optional on GT, standard on GT Limited)
Transmission Type Spec B:
6-Speed Manual (exclusive to Legacy GT spec.B)
Automatic Transmission Fluid Type:
Subaru ATF-HP (or equivalent Dexron III/Mercon compatible fluid, check specific manual revision)
Manual Transmission Fluid Type:
API GL-5, SAE 75W-90 (specific Subaru recommendation may vary)
AWD System Integration:
Integration with Symmetrical AWD, including viscous coupling center differential for manual and Subaru's Active Torque Split AWD for automatics.
Oil Change Interval:
Every 3,750 miles or 3 months (severe duty) or 7,500 miles or 6 months (normal duty) with synthetic oil. Consult owner's manual for specific recommendations.
Engine Air Filter Replacement:
Every 15,000 - 30,000 miles, or as needed based on driving conditions.
Cabin Air Filter Replacement:
Every 15,000 - 30,000 miles, or as needed.
Brake Fluid Flush:
Every 30,000 miles or 3 years.
Engine Oil Type:
API SG or higher, SAE 5W-30 (synthetic recommended for improved performance and longevity). Check specific oil cap or owner's manual for exact specification.
Coolant Type:
Subaru Super Coolant (or equivalent silicate-free, extended-life ethylene glycol coolant). Mixing brands or types is not recommended.
Power Steering Fluid:
Subaru Genuine Power Steering Fluid or Dexron III/Mercon equivalent.
Head Gaskets:
While less prevalent in the 3rd generation compared to previous ones, head gasket leaks can still occur, especially on higher mileage vehicles. The manual will cover diagnosis and replacement procedures.
Oil Leaks:
Common areas for oil leaks include valve cover gaskets and oil pan gaskets. Manual provides procedures for inspection and sealing.
Wheel Bearings:
Front wheel bearings can wear out prematurely, leading to humming or grinding noises. Manual covers replacement.
Clutch Wear:
Manual transmission clutch wear is normal with use; manual details clutch inspection and replacement.