Engine Mechanical:
        
        
            Complete engine assembly, cylinder head, block, pistons, connecting rods, crankshaft, camshafts, valve train, timing belt, oil pump, cooling system, lubrication system, fuel delivery system.
        
     
    
        
            Engine Electrical:
        
        
            Ignition system, fuel injection system (ECU, sensors, actuators), starter system, charging system, emissions control systems (EGR, O2 sensors).
        
     
    
        
            Transmission:
        
        
            Automatic transmission (4-speed), manual transmission (5-speed), clutch system, torque converter, transmission control module (TCM), drive shafts, differentials.
        
     
    
        
            Drivetrain:
        
        
            All-Wheel Drive (AWD) system, viscous coupling, center differential, rear differential, axle shafts, hubs.
        
     
    
        
            Suspension:
        
        
            Front struts, rear struts, control arms, bushings, stabilizer bars, coil springs, shock absorbers.
        
     
    
        
            Brakes:
        
        
            Front disc brakes, rear disc brakes, anti-lock braking system (ABS), brake fluid, master cylinder, calipers, rotors, brake lines, parking brake.
        
     
    
        
            Steering:
        
        
            Power steering system, steering rack, power steering pump, steering column, tie rods, steering knuckle.
        
     
    
        
            Electrical System:
        
        
            Battery, alternator, starter, lighting system (headlights, taillights, interior), fuses, relays, wiring diagrams, power distribution.
        
     
    
        
            HVAC:
        
        
            Heating, ventilation, and air conditioning (HVAC) system, evaporator, condenser, compressor, blower motor, refrigerant system, control panels.
        
     
    
        
            Body And Chassis:
        
        
            Body panels, doors, hood, trunk, bumpers, frame, unibody construction, sound deadening, weather stripping.
        
     
    
        
            Interior:
        
        
            Seats, dashboard, instrument cluster, door panels, headliner, carpet, seat belts, airbags (SRS).
        
     
    
        
            Diagnostics:
        
        
            On-board diagnostics (OBD-II) system, trouble codes (DTCs), diagnostic procedures, sensor data interpretation.
        
     
    
    
        
            Routine Maintenance:
        
        
            Oil change, filter replacement, fluid checks and changes (coolant, brake fluid, power steering fluid, transmission fluid), spark plug replacement, air filter replacement, battery maintenance.
        
     
    
        
            Major Repairs:
        
        
            Engine overhaul, cylinder head removal/installation, transmission overhaul, clutch replacement, brake caliper/rotor replacement, suspension component replacement, timing belt replacement.
        
     
    
        
            Troubleshooting:
        
        
            Step-by-step diagnostic guides for common and uncommon drivability issues, electrical faults, mechanical problems.
        
     
    
        
            Component Replacement:
        
        
            Detailed instructions for replacing virtually every component of the vehicle, from minor sensors to major powertrain parts.
        
     
    
        
            Wiring Diagrams:
        
        
            Complete and detailed electrical wiring schematics for all vehicle systems.
        
     
    
        
            Torque Specifications:
        
        
            Accurate torque values for all critical fasteners.
        
     
    
        
            Special Tools:
        
        
            Identification and usage of specific tools required for certain repair procedures.
        
     
    
        
            Specifications Data:
        
        
            All technical specifications for engine, transmission, chassis, electrical, and HVAC systems.
        
     
    
    
        
            Depth:
        
        
            Expert-level diagnostics and repair procedures, suitable for professional technicians and advanced DIY enthusiasts.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 3,750 miles (6,000 km) or 3 months, whichever comes first.
        
     
    
        
            Air Filter Replacement:
        
        
            Every 15,000 miles (24,000 km)
        
     
    
        
            Fuel Filter Replacement:
        
        
            Every 30,000 miles (48,000 km)
        
     
    
        
            Spark Plug Replacement:
        
        
            Every 30,000 miles (48,000 km) (Platinum type recommended, longer interval if used)
        
     
    
        
            Timing Belt Replacement:
        
        
            Every 60,000 miles (96,000 km) or 4 years, whichever comes first. Critical replacement.
        
     
    
        
            Coolant Flush:
        
        
            Every 30,000 miles (48,000 km) or 2 years.
        
     
    
    
        
            Engine Oil Type:
        
        
            API SG or SH, SAE 5W-30
        
     
    
        
            Engine Oil Capacity:
        
        
            4.7 US quarts (4.4 liters) with filter change
        
     
    
        
            Coolant Type:
        
        
            Subaru Super Coolant (or equivalent ethylene glycol-based coolant with rust inhibitor)
        
     
    
    
        
            Power Steering Fluid Type:
        
        
            ATF (Automatic Transmission Fluid)
        
     
    
    
        
            Head Gaskets:
        
        
            Early EJ25D engines (2.5L) were prone to head gasket failure due to design. EJ22E engines are generally more robust.
        
     
    
        
            Automatic Transmission:
        
        
            Some models may experience delayed shifting or 'flare' under certain conditions; fluid and filter changes are critical.
        
     
    
        
            Suspension Bushings:
        
        
            Wear and tear on suspension bushings can lead to noise and handling degradation over time.
        
     
    
        
            Catalytic Converter:
        
        
            Can become clogged with age and mileage, affecting performance and emissions.