🏷️ Basic Information Identification Make: BMW Model: 325i Platform: E46 Codes Chassis Codes: E46 (Sedan, Coupe, Convertible, Wagon) Engine Codes: M54B25 (2.5L Inline-6) 👋 Introduction Market Position Segment: Compact executive sedan/coupe/convertible. Target Audience: Enthusiasts, DIY mechanics, independent repair shops. Competitive Analysis Key Competitors: Mercedes-Benz C-Class, Audi A4, Lexus IS300, Acura TL. Key Features Driving Dynamics: Renowned for balanced chassis, responsive steering, and engaging driving experience. Powertrain Refinement: Smooth and powerful M54 inline-six engine. Build Quality: Typical BMW high-quality interior and exterior fit and finish. 📋 Manual Details Coverage Areas Years Covered: 1999, 2000, 2001, 2002, 2003, 2004, 2005 Page Count Estimated Page Count: Approx. 1500+ pages (typical for comprehensive workshop manuals) Manual Type Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine mechanicals, fuel injection, ignition, exhaust, cooling system, lubrication Transmission: Manual (Getrag 250G), Automatic (Steptronic GM A5S360R/A5S325Z) Drivetrain: Driveshafts, differential, axles, rear-wheel drive system Suspension: Front struts, rear multi-link suspension, control arms, springs, dampers Brakes: Front and rear disc brakes, ABS, DSC, brake fluid service Steering: Hydraulic power steering system, steering column, steering rack Electrical: Battery, charging system, starter, lighting, fuses, relays, body control module (BCM) Body And Chassis: Body panels, doors, windows, HVAC, interior trim, chassis components Diagnostics: OBD-II diagnostics, fault code interpretation, diagnostic procedures Procedures Included Routine Maintenance: Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, drive belt inspection/replacement Scheduled Maintenance: Brake service, cooling system flush, transmission fluid service, differential fluid service Repair Procedures: Engine component replacement (e.g., VANOS, water pump, alternator), transmission overhaul, suspension component replacement, brake caliper replacement Troubleshooting: Step-by-step diagnostic flows for common and uncommon issues, electrical system fault finding Component Removal Installation: Detailed instructions for removing and reinstalling all major vehicle components Technical Depth Scope: Comprehensive: Covers everything from basic maintenance to complete engine and transmission rebuilds. Diagnostic Level: Advanced: Includes detailed diagnostic strategies, wiring diagrams, and component testing procedures. Diagrams: Includes detailed exploded views, wiring schematics, and diagnostic flowcharts. 📊 Manual Specifications File Format Quality: High-resolution PDF, text-searchable, printable pages. Print Quality Readability: Clear text and legible diagrams suitable for printing. Binding Type Digital Format: N/A (Digital Download) Paper Type Digital Format: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline-6 (M54B25) Displacement: 2494 cc (2.5 Liters) Bore X Stroke: 84.0 mm x 90.0 mm Compression Ratio: 10.2:1 Valvetrain: DOHC, 24 valves, Double VANOS (Variable Valve Timing) Performance Horsepower: 184 hp (137 kW) @ 6000 rpm (approx.) Torque: 235 Nm (173 lb-ft) @ 3500 rpm (approx.) Fuel System Fuel Delivery: Electronic Fuel Injection (Bosch Motronic DME) Fuel Type: Premium Unleaded Gasoline (91+ octane recommended) Lubrication Oil Capacity: 6.5 liters (6.9 US quarts) with filter Oil Specification: BMW Longlife-01 (LL-01) approved synthetic oil, SAE 5W-30 or 0W-30 🔧 Transmission Standard Type: 5-Speed Manual Transmission (Getrag 250G) Optional Type: 5-Speed Automatic Transmission (GM A5S360R/A5S325Z) with Steptronic Features Manual Gear Ratios: Specific ratios for 1st-5th gear and reverse are detailed in the manual. Automatic Features: Sport mode, Steptronic manual shifting capability. Fluid Specifications Manual Transmission Fluid: BMW MTF LT-2 or equivalent, typically SAE 75W-80 GL-4. Automatic Transmission Fluid: BMW LT-2 or Dexron III (GM spec), capacity ~8.5 liters. 📐 Dimensions Exterior Wheelbase: Approx. 2760 mm (108.7 inches) Length: Approx. 4471 mm (176.0 inches) for Sedan Width: Approx. 1739 mm (68.5 inches) Height: Approx. 1415 mm (55.7 inches) for Sedan Weights Curb Weight: Approx. 1490 kg (3285 lbs) for Sedan (manual) Gross Vehicle Weight Rating: Detailed in manual, typically around 1900-2000 kg. Towing Capacity: Not typically specified or recommended for North American models. 🛡️ Safety Features Ratings NHTSA Front Impact: 5-star (for applicable model year testing) IIHS Side Impact: 'Good' (for applicable model year testing) Active Features Traction Control: Automatic Stability Control (ASC) / Dynamic Stability Control (DSC) Braking System: Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD) Passive Features Airbags: Front airbags (driver/passenger), optional side-impact airbags. Seatbelts: 3-point seatbelts with pre-tensioners, LATCH child seat anchors. Chassis Design: Reinforced passenger cell, crumple zones. 💡 Technology Features Infotainment Head Unit: BMW Business CD, BMW Professional CD/RDS, or optional Navigation system (MK III/MK IV). Audio System: Standard 6-speaker system, optional Hi-Fi or Harman Kardon premium sound. Driver Assistance Cruise Control: Standard cruise control system. Parking Sensors: Optional rear Park Distance Control (PDC). Connectivity Phone Integration: Optional Bluetooth hands-free system or older cellular phone cradles. Instrument Cluster: Halogen or Xenon headlights, on-board computer (OBC) for trip data and system checks. 🔧 Maintenance Service Intervals Oil Change: Variable based on Condition Based Service (CBS) system, typically 10,000-15,000 miles or 12-24 months, or when indicated by the vehicle. Spark Plugs: Typically 60,000-100,000 miles for long-life spark plugs (e.g., NGK BKR6EQUP). Coolant Flush: Every 2-4 years or 30,000-50,000 miles, using BMW's blue or pink coolant (G48). Brake Fluid: Every 2 years or 24,000 miles, using...