🏷️ Basic Information Identification Make: BMW Model: 3 Series Model Variant: 325xi Year: 2003 Generation Chassis Code: E46 Generation Name: Fifth Generation E46 Codes Engine Code: M54B25 👋 Introduction Market Position Market Position: Premium compact executive sedan/wagon offering sporty handling, advanced technology, and all-wheel drive capability Competitive Analysis Competitive Analysis: Competed directly with the Audi A4 Quattro, Mercedes-Benz C-Class 4MATIC, and Lexus IS series Key Features Key Features: xDrive all-wheel drive system, refined inline-six engine, engaging driving dynamics, premium interior appointments, advanced safety features 📋 Manual Details Coverage Areas Coverage Areas: Engine, Drivetrain, Suspension, Steering, Brakes, Electrical Systems, HVAC, Bodywork, Diagnostics, Maintenance, Repair Procedures Page Count Page Count: Extensive (Software-based, dynamically displayed) Manual Type Manual Type: Service and Repair Manual Software Language Language: English Format Format: Digital Software (Downloadable) 📖 Manual Coverage Systems Covered Engine Systems: M54B25 inline-six: Engine mechanical, lubrication, cooling, fuel injection, ignition, emissions control, exhaust system Drivetrain Systems: xDrive All-Wheel Drive System: Transfer case, front and rear driveshafts, differentials, axle shafts, AWD control module Transmission Systems: GM 5L475-E (5-speed automatic): Gearbox operation, torque converter, valve body, electronic control module, fluid specifications, service Suspension Steering: Front and Rear Suspension: MacPherson struts, multi-link rear, control arms, bushings, shock absorbers, steering rack, power steering system Brake Systems: Front and Rear Disc Brakes: ABS, DSC (Dynamic Stability Control), EBD (Electronic Brakeforce Distribution), brake pad replacement, rotor resurfacing/replacement, hydraulic system Electrical Systems: 12V Electrical System: Battery, alternator, starter, lighting (headlights, taillights, interior), fuses, relays, wiring diagrams, diagnostic trouble codes (DTCs) HVAC Systems: Climate Control System: Air conditioning, heating, ventilation, blower motor, refrigerant handling, cabin air filter replacement Bodywork Interior: Body Panels, Doors, Windows, Seats, Trim, Convertible Top Mechanism (if applicable), Convertible Top Frame Procedures Included Engine Procedures: Engine oil and filter change, spark plug replacement, coolant flush and fill, drive belt replacement, complete engine removal and installation, cylinder head overhaul Drivetrain Procedures: Transfer case fluid change, differential fluid change, driveshaft and CV joint inspection and replacement, AWD system diagnostics Transmission Procedures: Automatic transmission fluid and filter change, transmission removal and installation, torque converter replacement, troubleshooting transmission shift issues Suspension Steering Procedures: Strut and shock absorber replacement, control arm and bushing replacement, wheel bearing replacement, power steering fluid flush, steering rack repair Brake Procedures: Brake pad and rotor replacement, brake fluid flush and bleed, ABS/DSC component testing and replacement, parking brake adjustment Electrical Procedures: Battery testing and replacement, alternator testing and replacement, starter replacement, headlight/taillight bulb replacement, fuse and relay diagnosis, wiring harness repair HVAC Procedures: AC system recharge, cabin filter replacement, heater core replacement, blower motor replacement, diagnosis of climate control system faults Bodywork Procedures: Door lock and window regulator repair, mirror replacement, bumper cover repair, interior trim panel removal and installation Diagnostic Procedures: OBD-II scanning, Diagnostic Trouble Code (DTC) interpretation, component testing, troubleshooting common drivability issues Technical Depth Technical Depth: Comprehensive from basic maintenance to full engine and transmission rebuilds, including detailed diagnostic procedures and wiring diagrams 📊 Manual Specifications File Format File Format: Digital Software (likely PDF or proprietary executable) Print Quality Print Quality: N/A (Digital - excellent clarity and detail) Binding Type Binding Type: N/A (Digital) Paper Type Paper Type: N/A (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline 6-Cylinder Engine Code: M54B25 Displacement: 2494 cc (2.5 Liters) Bore X Stroke: 84.0 mm x 90.0 mm Compression Ratio: 10.2:1 Valve Train: Double Overhead Camshafts (DOHC), 4 valves per cylinder, VANOS (Variable Valve Timing) Performance Horsepower: 184 hp @ 6000 rpm Torque: 230 Nm (169 lb-ft) @ 3500 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Fuel Tank Capacity: 66 Liters (17.4 US Gallons) 🔧 Transmission Standard Transmission Type: 5-Speed Automatic (GM 5L475-E) Optional Optional Transmission: 5-Speed Manual (S5-42/3Z) Features Drivetrain Type: xDrive All-Wheel Drive Transfer Case: Electronically controlled multi-plate clutch system with planetary gearset Automatic Transmission Fluid: Dexron III/VI or equivalent (refer to manual for specific BMW P/N) Manual Transmission Fluid: SAE 75W-90 Synthetic Gear Oil (refer to manual for specific BMW P/N) 📐 Dimensions Exterior Wheelbase: 2760 mm (108.7 inches) Length: 4471 mm (176.0 inches) Width: 1739 mm (68.5 inches) Height: 1415 mm (55.7 inches) Ground Clearance: Approximately 140 mm (5.5 inches) Weights Curb Weight: 1550 kg (3417 lbs) approx. Gross Vehicle Weight Rating: 2000 kg (4409 lbs) approx. 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5 Stars NHTSA Front Impact Passenger: 5 Stars NHTSA Side Impact Front Driver: 5 Stars NHTSA Side Impact Front Passenger: 5 Stars NHTSA Side Impact Rear Driver: 4 Stars NHTSA Side Impact Rear Passenger: 4 Stars IIHS Moderate Overlap Front: Good IIHS Side Impact: Good Active Features Active Safety Features: Anti-lock Braking System (ABS), Dynamic Stability Control (DSC), Traction Control System (TCS), Electronic Brakeforce Distribution (EBD), All-Season Traction (from xDrive) Passive Features Passive Safety Features: Front airbags,...