🏷️ Basic Information Identification Make: BMW Model: 3 Series Chassis Code: E46 Body Style: Sedan Engine Variant: 325i Model Years Covered: 1999-2005 Codes Engine Code Range: M54B25 (common) 👋 Introduction Market Position Market Segment: Compact Executive Sedan Key Selling Points: Sporting dynamics, premium interior, reliable engineering Competitive Analysis Primary Competitors: Audi A4, Mercedes-Benz C-Class, Lexus IS Key Features Chassis Design: E46 platform known for its balanced chassis and excellent handling characteristics. Engine Technology: M54 inline-six engine, known for smooth power delivery and durability. Manual Value Proposition: Provides in-depth factory knowledge for accurate diagnostics and repairs, empowering owners and technicians. 📋 Manual Details Coverage Areas General Maintenance: Yes Engine Repair: Yes Transmission Repair: Yes Drivetrain Repair: Yes Suspension Repair: Yes Steering Repair: Yes Brake System Repair: Yes Electrical System Diagnosis Repair: Yes Body And Chassis Repair: Yes Heating Ventilation Air Conditioning HVAC: Yes Body Control Modules Bcm: Yes Diagnostic Troubleshooting Procedures: Yes Wiring Diagrams: Yes Page Count Estimated Pages: Hundreds (Specific count not provided in source, but indicative of comprehensive coverage) Manual Type Type: Workshop Service Repair Manual Language Language: English Format File Format: PDF Delivery Method: Instant Download 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, cylinder head, pistons, crankshaft, camshaft, valve train Engine Management: Engine control unit (ECU), fuel injection, ignition system, emissions control Cooling System: Radiator, water pump, thermostat, cooling fans, coolant specifications Lubrication System: Oil pump, oil pan, oil filter, oil specifications Fuel System: Fuel pump, fuel injectors, fuel filter, fuel tank, fuel pressure Exhaust System: Exhaust manifolds, catalytic converter, mufflers, oxygen sensors Manual Transmission: Clutch, gearbox, shifter mechanism, lubricant specifications Automatic Transmission: Torque converter, planetary gear sets, valve body, transmission fluid specifications Drive Axles: CV joints, drive shafts, differential Suspension Front: Struts, control arms, ball joints, sway bar Suspension Rear: Multi-link suspension, shock absorbers, control arms Steering System: Steering rack, power steering pump, steering column Brake System Front: Brake calipers, rotors, pads, brake fluid Brake System Rear: Brake calipers, rotors, pads, parking brake mechanism Anti-Lock Braking System ABS: ABS control module, wheel speed sensors Body Electrical System: Lighting, power windows, door locks, mirrors Instrument Panel: Gauges, warning lights, onboard computer Audio System: Radio, speakers, amplifiers Comfort Controls: Climate control, heated seats Safety Systems: Airbags, seatbelts, pre-tensioners Body Structure: Frame, chassis components, body panels Body Hardware: Doors, hood, trunk, fenders, bumpers Paint And Trim: Body panel repair, paint codes Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks, spark plug replacement Troubleshooting Guides: Step-by-step diagnostic procedures for common problems Component Disassembly Assembly: Detailed instructions for removing and reinstalling parts Rebuild Procedures: Engine and transmission rebuild specifications Electrical Component Testing: Testing methods for sensors, actuators, and control modules Wheel Alignment: Specifications and adjustment procedures Air Conditioning Service: Refrigerant handling, system diagnostics, component replacement Brake Bleeding: Procedures for various brake systems, including ABS Timing Belt Replacement: Although M54 is chain-driven, related timing component checks are likely covered Torque Specifications: Detailed torque values for critical fasteners across all systems Technical Depth Depth: Comprehensive Factory Level Target Audience: Professional Technicians & DIY Mechanics Detail Level: Step-by-step instructions with highly detailed exploded pictures and diagrams 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Full Printable Zoom Capability: Yes (Zoom IN/OUT) Binding Type Binding Type: Digital Download (Printable) Paper Type Paper Type: N/A (Digital format) Requirements Software Requirements: Adobe PDF Reader & WinZip Operating System Compatibility: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Code: M54B25 Engine Type: Naturally Aspirated Inline 6-Cylinder Displacement: 2494 cc (2.5 Liters) Bore X Stroke: 84.0 mm x 75.0 mm Compression Ratio: 10.2:1 Performance Horsepower Hp: 189 hp @ 6000 rpm (approximate) Torque Lb-Ft: 245 Nm (181 lb-ft) @ 3500 rpm (approximate) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) - Bosch Motronic Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Engine Management ECU Type: MS43 or MS45 (depending on model year) Timing System Timing Mechanism: Double VANOS (Variable Valve Timing) and timing chain 🔧 Transmission Standard Type: 5-Speed Manual (Getrag GS5-39DZ) Optional Type: 5-Speed Automatic (GM A5S360R/RHW or ZF 5HP19) Features Clutch: Hydraulically actuated single-plate dry clutch Transmission Fluid Manual: BMW MTF LT-2 (or equivalent) Transmission Fluid Automatic: Dexron III / Mercon (or equivalent, check specific model year) 📐 Dimensions Exterior Length: 4471 mm (176.0 in) Width: 1739 mm (68.5 in) Height: 1415 mm (55.7 in) Wheelbase: 2760 mm (108.7 in) Weights Curb Weight: ~1500 kg (3307 lbs) - varies by transmission and options Gross Vehicle Weight Rating Gvwr: Approx. 1970 kg (4343 lbs) 🛡️ Safety Features Ratings NHTSA Frontal Impact Driver: 5-Star (for models with specific safety features) NHTSA Frontal Impact Passenger: 5-Star (for models with specific safety features) IIHS Moderate Overlap Frontal Offset: Good (for many E46 models) Active Features Traction Control: Available (ASC+T) Dynamic Stability Control: Available (DSC) Anti-Lock Braking System: Standard (ABS)...