🏷️ Basic Information Identification Make: BMW Model: 325xi Year: 2004 Codes Chassis Code: E46 Production Code: 325xi (325i xDrive) 👋 Introduction Market Position Segment: Compact Executive Sedan/Wagon Key Competitors: Audi A4 Quattro, Mercedes-Benz C-Class 4MATIC, Lexus IS300. Competitive Analysis Usp: Sporty handling, sophisticated xDrive AWD system, premium interior, refined engine. Key Features Platform: E46 platform, known for its balanced chassis and rear-wheel-drive bias (modified for xDrive). Powertrain Focus: Emphasis on the inline-six engine and intelligent xDrive all-wheel-drive system. 📋 Manual Details Coverage Areas General Coverage: Complete service, repair, and diagnostic procedures for the 2004 BMW 325xi. Specific Systems: Engine, Drivetrain (xDrive AWD), Transmission, Brakes, Suspension, Steering, Electrical, HVAC, Bodywork, Diagnostics. Page Count Estimated Pages: Over 1500 pages (typical for a comprehensive BMW workshop manual). Manual Type Type: Service Repair Workshop Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine: M54B30 engine: Disassembly, assembly, diagnostics, timing, fuel injection, ignition, cooling, lubrication. Drivetrain AWD: xDrive all-wheel-drive system: Transfer case, front differential, rear differential, drive shafts, system diagnostics. Transmission: Manual (Getrag 6-speed) and Automatic (GM 5L40-E): Overhaul, diagnostics, fluid specifications, shift control. Brakes: ABS, DSC (Dynamic Stability Control), brake fluid, disc/pad replacement, caliper servicing, parking brake. Suspension: Front struts, rear multi-link suspension, control arms, bushings, springs, shock absorbers, wheel alignment. Steering: Hydraulic power steering system: Rack and pinion, pump, fluid, troubleshooting. Electrical: Complete wiring diagrams, fuse box locations, starter, alternator, battery, lighting, body control module (BCM), diagnostic connectors (OBD-II). HVAC: Climate control system, AC compressor, refrigerant recharge, blower motor, heater core, cabin filter replacement. Bodywork: Panel removal/installation, door mechanisms, glass replacement, interior trim, bumper repairs. Diagnostics: Fault code reading, troubleshooting trees, component testing, use of diagnostic tools (e.g., ISTA/D for dealer-level functions). Procedures Included Maintenance: Oil changes, filter replacements, spark plug service, coolant flushes, brake fluid service, differential fluid changes. Repair: Engine component replacement (e.g., VANOS, valve cover gasket, water pump), transmission rebuilds, suspension component replacement, brake caliper overhaul. Troubleshooting: Step-by-step guides for diagnosing common and uncommon issues, symptom-based troubleshooting. Installation: Component installation procedures for major parts and accessories. Technical Depth Depth: Comprehensive from basic maintenance to complete engine and transmission overhauls, including advanced diagnostics and electrical troubleshooting. 📊 Manual Specifications File Format Digital Format: Searchable PDF with high-resolution diagrams and text. Print Quality Image Quality: High-resolution for clear viewing of diagrams and schematics. Binding Type Binding: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: M54B30 Engine Type: 3.0L Naturally Aspirated Inline-6 Cylinder Displacement: 2979 cc (181.7 cu in) Bore X Stroke: 84.0 mm x 89.6 mm Compression Ratio: 10.2:1 Performance Horsepower: 225 hp @ 6,250 rpm (SAE Net) Torque: 214 lb-ft @ 3,500 rpm (SAE Net) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) with Bosch Motronic ME7.2 control. Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Engine Components Valvetrain: Double Overhead Camshafts (DOHC), 4 valves per cylinder, Double VANOS (Variable Valve Timing). 🔧 Transmission Standard Transmission Type: 6-Speed Manual (Getrag GS6-37BZ) Optional Transmission Type: 5-Speed Automatic (GM 5L40-E) Features Drivetrain: xDrive Intelligent All-Wheel Drive (AWD) with a power distribution bias. Fluid Specifications Manual Transmission Fluid: BMW MTF LT-2 (or equivalent synthetic MTF) Automatic Transmission Fluid: Dexron III (or equivalent ATF compatible with GM 5L40-E) 📐 Dimensions Exterior Length: 4524 mm (178.1 in) Width: 1739 mm (68.5 in) Height: 1414 mm (55.7 in) Wheelbase: 2760 mm (108.7 in) Weights Curb Weight: Approx. 1585 kg (3494 lbs) for sedan; Approx. 1630 kg (3594 lbs) for wagon. 🛡️ Safety Features Ratings NHTSA Front Impact: 5-Star (for E46 generation overall) IIHS Side Impact: Good (for E46 generation overall) Active Features Stability Control: Dynamic Stability Control (DSC) with ABS and traction control. Braking System: 4-wheel Anti-lock Braking System (ABS), Electronic Brake-force Distribution (EBD). Passive Features Airbags: Front airbags, front side-impact airbags, optional head protection airbags. Seatbelts: 3-point inertia-reel seat belts with pretensioners. 💡 Technology Features Infotainment Head Unit: BMW Business or Professional CD/Radio system, with optional navigation. Audio System: Standard 6-speaker system, optional Harman Kardon premium audio. Driver Assistance Traction Control: Available traction control integrated with DSC. Connectivity Bluetooth: Optional Bluetooth preparation for hands-free calling. Diagnostics OBD Ii: On-Board Diagnostics II compliant, supporting standard diagnostic protocols. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 7,500 to 15,000 miles or annually, depending on driving conditions and oil quality (as per Condition Based Service - CBS). Spark Plug Replacement: Around 100,000 miles for iridium-tipped spark plugs. Coolant Flush: Every 2-3 years or 30,000 miles. Fluid Specifications Engine Oil Type: BMW Longlife-01 (LL-01) approved synthetic oil, viscosity typically 5W-30 or 5W-40. Engine Oil Capacity: 6.5 liters (6.9 US quarts) with filter change. Coolant Type: BMW Blue Antifreeze/Coolant (G48 or equivalent ethylene glycol-based coolant). Brake Fluid Type: DOT 4 (low-viscosity, high-performance) Known Issues Engine Oil Leaks: Valve cover gasket, oil filter housing gasket (OFHG),...