🏷️ Basic Information Identification Make: Subaru Model: Legacy Year: 2002 Codes Chassis Code: BD/BG/BK (Gen 3) Engine Codes Covered: EJ251, EJ253 (2.5L Naturally Aspirated), EJ20 (2.0L Naturally Aspirated - JDM/European market variants if applicable within scope) 👋 Introduction Market Position Segment: Mid-size Sedan / Wagon Key Selling Points: Symmetrical All-Wheel Drive (standard on most models), boxer engine, comfortable ride, practical interior, robust build quality. Competitive Analysis Competitors: Toyota Camry, Honda Accord, Nissan Altima, Mazda6, Ford Taurus. Key Features Drivetrain: Standard Symmetrical All-Wheel Drive (AWD) Engine Layout: Horizontally-opposed (Boxer) 📋 Manual Details Coverage Areas Primary Coverage: Repair, Maintenance, Diagnostics, Troubleshooting, Electrical Schematics, Component Removal/Installation Specific Systems Covered: Engine, Fuel System, Ignition System, Cooling System, Exhaust System, Drivetrain, Transmission (Automatic & Manual), Suspension, Steering, Brakes (ABS), Climate Control, Electrical Systems (including ECUs, wiring diagrams), Body & Chassis, Restraint Systems (Airbags), Diagnostic Trouble Codes (DTCs) Page Count Estimated Page Count: 1500+ Manual Type Type: Factory Service Manual (FSM) / Repair Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed breakdown of EJ251/EJ253 engines, including cylinder head, piston, crankshaft, timing belt replacement, valve adjustment, lubrication system, and cooling system components. Engine Performance: Fuel injection system diagnosis and repair, ignition timing, emission control systems (catalytic converter, EGR), idle speed control. Transmission Manual: Clutch system, gear shifter linkage, gearbox overhaul, fluid replacement, and troubleshooting for 5-speed manual transmissions. Transmission Automatic: Diagnosis, fluid and filter change, torque converter information, and general overhaul procedures for 4-speed automatic transmissions. Brakes: Front and rear brake system diagnosis, pad and rotor replacement, caliper overhaul, ABS system component testing and repair, hydraulic system bleeding. Suspension Steering: Front and rear suspension component replacement (struts, control arms, bushings), wheel alignment specifications, power steering system diagnosis and repair, steering rack and column. Electrical Diagnostics: Comprehensive wiring diagrams for all vehicle systems, fuse and relay locations, component testing procedures using a multimeter, starter and charging system diagnosis. HVAC: Climate control system diagnosis, refrigerant service (R134a), compressor, evaporator, condenser, and blower motor replacement, heater core service. Procedures Included Preventative Maintenance: Detailed oil change procedures, filter replacements (air, oil, fuel), spark plug replacement intervals and specifications, coolant flushes, brake fluid replacement. Troubleshooting: Systematic diagnostic flowcharts for common drivability issues, electrical faults, and mechanical problems, including interpretation of Diagnostic Trouble Codes (DTCs). Component Replacement: Step-by-step instructions for removing and installing major components such as engine, transmission, suspension parts, brakes, starter, alternator, fuel pump, and body panels. Diagnostics: Use of Subaru Select Monitor (SSM) diagnostic tool, understanding sensor data, static and dynamic electrical tests. Technical Depth Depth: Expert-level, covering from basic fluid changes to complete engine and transmission overhauls, complex electrical diagnostics, and bodywork repairs. 📊 Manual Specifications File Format Digital Format: PDF Searchability: Fully searchable text content for quick access to information. Printability: Printable pages for physical reference. Print Quality Image Resolution: High-resolution diagrams and illustrations. Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: EJ251 Displacement: 2.5 Liters (2457 cc) Configuration: Naturally Aspirated, SOHC, 16-valve, Flat-4 (Boxer) Performance Horsepower: 165 hp @ 5600 rpm Torque: 166 lb-ft @ 4000 rpm Fuel System Induction: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline, 87 Octane (Minimum) Cooling System Coolant Type: Subaru Super Coolant (Blue) or equivalent (50/50 mix with distilled water) Engine Oil Oil Type: SAE 5W-30 API SG or higher Oil Capacity: 4.5 US Quarts (4.3 Liters) with filter change Timing Belt Replacement Interval: 105,000 miles or 105 months, whichever comes first. Critical component; failure can cause catastrophic engine damage. 🔧 Transmission Standard Type: 5-Speed Manual Transmission Optional Type: 4-Speed Automatic Transmission with Lock-up Torque Converter Features AWD System: Symmetrical All-Wheel Drive with viscous coupling center differential. Fluid Manual Fluid Type: API GL-5, SAE 75W-90 Gear Oil Fluid Automatic Fluid Type: Subaru ATF-HP (High Performance) or Dexron III compatible 📐 Dimensions Exterior Length: 187.4 inches (4760 mm) Width: 69.1 inches (1755 mm) Height: 56.3 inches (1430 mm) Wheelbase Wheelbase: 104.3 inches (2650 mm) Weights Curb Weight: 3200 - 3400 lbs (1450 - 1540 kg) approx., depending on trim and body style. Cargo Trunk Volume Sedan: 13.1 cubic feet (371 liters) Cargo Volume Wagon: 36.7 cubic feet (1039 liters) with rear seats up; 69.2 cubic feet (1960 liters) with rear seats folded. Wheels Tires Standard Wheel Size: 15-inch or 16-inch alloy wheels Standard Tire Size: 205/55R16 or 205/60R15 Bolt Pattern: 5x100mm Offset: ET48-55 (typical) 🛡️ Safety Features Ratings NHTSA Front Impact: Good (Driver & Passenger) - 2002 model year IIHS Side Impact: Acceptable - 2002 model year Active Features ABS: Standard Anti-lock Braking System (ABS) on most trims. Traction Control: Available Traction Control System (TCS) on some models. Passive Features Airbags: Front driver and passenger airbags. Available side-impact airbags on select trims. Seatbelts: Three-point seatbelts with pre-tensioners for front occupants. Child Seats:...