🏷️ Basic Information Identification Make: Subaru Model: Legacy Year: 2004 Generation Generation Designation: BP/BL Codes Chassis Code: BP (Wagon), BL (Sedan) 👋 Introduction Market Position Segment: Mid-size Sedan and Wagon Key Selling Points: Symmetrical All-Wheel Drive, boxer engine, safety, practicality Competitive Analysis Primary Competitors: Toyota Camry, Honda Accord, Mazda6, Nissan Altima Key Features Drivetrain Standard: Symmetrical All-Wheel Drive (AWD) Engine Layout: Horizontally-opposed (Boxer) Body Styles: 4-door Sedan, 5-door Wagon 📋 Manual Details Coverage Areas Primary Coverage: North America Secondary Coverage: Global specifications may vary slightly Page Count Estimated Page Count: 1500-2000+ (Typical for comprehensive factory service manuals) Manual Type Manual Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, block, pistons, crankshaft, camshafts, valve train, timing system (belts/chains), lubrication system, cooling system Engine Performance: Fuel injection, ignition system, emissions control (EGR, catalytic converter), intake and exhaust systems, turbocharging (if applicable) Transmission Manual: Clutch operation, gear shifting mechanism, internal components, maintenance, and repair Transmission Automatic: Torque converter, planetary gear sets, valve body, hydraulic system, electronic controls, maintenance, and repair Drivetrain: Front and rear differentials, driveshafts, CV joints, AWD system operation and maintenance Suspension: Front struts/coilovers, rear multi-link suspension, control arms, bushings, springs, shock absorbers, sway bars Steering: Power steering system (hydraulic), steering rack, steering column, tie rods Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System), brake hydraulics, parking brake Electrical System: Battery, alternator, starter, wiring diagrams, fuses, relays, lighting system, horns Body And Chassis: Body panels, doors, hoods, trunk, glass, interior trim, structural components, corrosion protection HVAC: Heating, ventilation, and air conditioning systems, refrigerant service Safety Systems: Airbag system (SRS), seat belts, child seat anchors (ISOFIX) Diagnostics: OBD-II (On-Board Diagnostics), diagnostic trouble codes (DTCs), troubleshooting procedures Procedures Included Scheduled Maintenance: Oil changes, filter replacements, fluid checks, tire rotations, brake inspections, belt inspections Engine Repair: Engine overhaul, head gasket replacement, timing belt/chain replacement, piston ring replacement, bearing replacement Transmission Repair: Clutch replacement, transmission fluid and filter changes, torque converter replacement, internal transmission component repair Brake Service: Brake pad and rotor replacement, caliper service, brake fluid flush and bleed, ABS component testing Suspension And Steering Repair: Strut/shock replacement, control arm bushing replacement, ball joint replacement, tie rod end replacement, power steering pump and rack replacement Electrical Diagnostics And Repair: Wiring harness repair, sensor testing, actuator diagnosis, starter and alternator testing and replacement Bodywork And Trim: Door panel removal, exterior trim replacement, glass replacement, bumper repair/replacement HVAC Service: Evaporator and condenser replacement, blower motor replacement, refrigerant recharge Safety System Service: Airbag module replacement, seat belt replacement, seat belt pretensioner replacement Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting guides Technical Depth Depth Of Coverage: Comprehensive (covers basic maintenance to full engine and transmission rebuilds) Diagnostic Tools: Specifies use of Subaru Select Monitor (SSM) or equivalent diagnostic scan tools Special Tools: Lists required Subaru special tools with part numbers for specific procedures Torque Specifications: Detailed torque values for all fasteners Clearances And Tolerances: Engine bearing clearances, piston ring gap, valve lash specifications Wiring Diagrams: Detailed color-coded electrical schematics for all systems Illustrations And Diagrams: High-quality diagrams, exploded views, and step-by-step illustrations 📊 Manual Specifications File Format File Format: PDF (Portable Document Format) Searchability: Text-searchable PDF for easy information retrieval Print Quality Print Feature: Printable pages (individual or complete manual) Binding Type Binding Type Digital: N/A (Digital format) Paper Type Paper Type Digital: N/A (Digital format) ⚙️ Engine Specifications Primary Engine Engine Code: EJ253 (2.5L SOHC Non-Turbo), EJ255 (2.5L DOHC Turbo - GT models) Engine Displacement: 2.5 Liters (2457 cc) Engine Configuration: Flat-4 (Boxer) Valvetrain: SOHC (Single Overhead Camshaft) for 2.5i, DOHC (Double Overhead Camshaft) with AVCS for GT models Performance Horsepower 2.5I: 165 hp @ 5600 rpm Torque 2.5I: 170 lb-ft @ 4000 rpm Horsepower 2.5Gt: 250 hp @ 5600 rpm (approx.) Torque 2.5Gt: 250 lb-ft @ 3600 rpm (approx.) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline Fuel Requirement Gt: Premium Unleaded (91 octane or higher recommended) 🔧 Transmission Standard Transmission Type: 5-Speed Manual Transmission Optional Transmission Type: 4-Speed Automatic Transmission with Sportshift Features AWD System: Symmetrical All-Wheel Drive with viscous center coupling Automatic Transmission Mode: Includes adaptive shift control 📐 Dimensions Exterior Length Sedan: 187.6 inches (4765 mm) Length Wagon: 189.1 inches (4803 mm) Width: 69.1 inches (1755 mm) Height Sedan: 57.9 inches (1470 mm) Height Wagon: 58.1 inches (1475 mm) Wheelbase: 104.0 inches (2640 mm) Weights Curb Weight Starting: 3340 lbs (approx. for 2.5i Manual Sedan) 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5-Star NHTSA Front Impact Passenger: 5-Star IIHS Front Offset Crash Rating: Good Active Features ABS: Standard (4-wheel disc ABS) Traction Control: Available on some trims Electronic Stability Control: Available on some trims Passive Features Airbags: Front airbags, front side-impact airbags Seatbelts: Three-point seatbelts in all positions, front seat pretensioners...