🏷️ Basic Information Identification Make: BMW Model: 3 Series Specific Model: 323i Model Code: E46 Year: 2002 Codes Engine Code: M52TU B25 👋 Introduction Market Position Segment: Compact Executive Sedan/Coupe Target Audience: Enthusiast owners, independent repair shops, BMW dealerships. Competitive Analysis Key Competitors: Mercedes-Benz C-Class, Audi A4, Lexus IS300, Acura TL. Key Features Vehicle Philosophy: BMW's 'Ultimate Driving Machine' ethos, focusing on balanced handling, responsive engines, and driver engagement. Manual Value Proposition: Provides professional-level repair and maintenance data, enabling owners to perform complex tasks, saving on labor costs and ensuring proper vehicle care. 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Workshop Diagnostic Coverage: Troubleshooting, Diagnostic Procedures Page Count Estimated Page Count: Over 1000 (typical for comprehensive BMW workshop manuals) Manual Type Type: Workshop Manual / Service Manual Language Language: English Format Format: Digital (PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine removal/installation, cylinder head, pistons, crankshaft, timing, lubrication system, cooling system, intake manifold, exhaust manifold. Engine Management: Fuel injection (DME), ignition system, emission control systems, engine sensors, DME control unit. Transmission Manual: Clutch, gearbox removal/installation, internal components, shift linkage. Transmission Automatic: GM A5S-325Z transmission: removal/installation, hydraulic system, electronic control, torque converter. Drivetrain: Driveshaft, differential, axle shafts, wheel bearings. Suspension: Front suspension (MacPherson strut, control arms, stabilizer bar), rear suspension (multi-link), shock absorbers, springs, bushings. Steering: Power steering system, steering rack, steering column, steering wheel removal/installation. Brakes: Front and rear disc brakes, ABS system, DSC system, brake fluid, brake lines, parking brake. Electrical System: Battery, charging system (alternator, starter), lighting system, power windows, power locks, central locking, mirrors, wipers, horn, fuse box, relays. Body And Chassis: Body panels, doors, hood, trunk, bumpers, interior trim, chassis components, corrosion protection. Climate Control: HVAC system, A/C compressor, evaporator, heater core, blower motor, climate control unit. Safety Systems: Airbag system, seat belt pre-tensioners, SRS control module. Procedures Included Maintenance: Scheduled maintenance (oil changes, filter replacements, spark plugs, brake fluid flush), inspections. Diagnostics Troubleshooting: Step-by-step diagnostic procedures for common faults, fault code interpretation (OBD-II). Repair Rebuild: Detailed instructions for component removal, disassembly, inspection, repair, and reassembly of all major systems. Wiring Diagrams: Comprehensive electrical wiring diagrams for all vehicle systems. Torque Specifications: Detailed torque values for all critical fasteners. Special Tools: Identification and usage of specialized BMW tools required for specific repairs. Technical Depth Depth Level: Comprehensive (from basic maintenance to complete engine and transmission overhauls). Diagnostic Complexity: Advanced diagnostics utilizing on-board computer systems and specific test procedures. 📊 Manual Specifications File Format File Type: PDF Searchability: Searchable text content Printability: Printable pages Print Quality Image Resolution: High resolution for diagrams and illustrations Binding Type Binding: N/A (Digital Format) Paper Type Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Name: M52TUB25 Engine Type: Inline 6-Cylinder, Naturally Aspirated Displacement: 2494 cc (2.5 Liters) Bore X Stroke: 84.0 mm x 90.0 mm Compression Ratio: 10.2:1 Valve Train: Dual Overhead Camshafts (DOHC), 24 Valves (4 per cylinder), VANOS (Variable Valve Timing). Performance Horsepower: 184 hp @ 6000 rpm Torque: 235 Nm (173 lb-ft) @ 3500 rpm Fuel System Fuel Delivery: Sequential Multi-Point Fuel Injection (Bosch Motronic ME 7.2) Fuel Type: Premium Unleaded (91 Octane or higher recommended) Engine Management Engine Control Unit: Bosch Motronic ME 7.2 🔧 Transmission Standard Transmission Type Standard: 5-Speed Manual (Getrag GS5-39DZ) Optional Transmission Type Optional: 5-Speed Automatic (GM A5S-325Z) Features Automatic Features: Steptronic (manual shifting mode) 📐 Dimensions Exterior Wheelbase: 107.4 inches (2728 mm) Length: 177.4 inches (4506 mm) Width: 68.9 inches (1750 mm) Height: 56.2 inches (1427 mm) Front Track: 58.5 inches (1486 mm) Rear Track: 59.3 inches (1506 mm) Weights Curb Weight: Approx. 3307 lbs (1500 kg) for sedan Gross Vehicle Weight Rating: Varies by body style and options Towing Capacity: Not Recommended/Specified by BMW for US models 🛡️ Safety Features Ratings NHTSA Front Impact Driver: 5 Stars NHTSA Front Impact Passenger: 5 Stars IIHS Front Small Overlap: Good (for relevant model years if tested) Active Features ABS: Standard (Anti-lock Braking System) Dsc: Optional/Standard depending on trim (Dynamic Stability Control) Traction Control: Standard (part of DSC) Passive Features Airbags: Frontal airbags (driver and passenger), optional side airbags. Seatbelts: Three-point inertia-reel seat belts with pre-tensioners and force limiters. Rollover Protection: Reinforced chassis and body structure. 💡 Technology Features Infotainment Audio System: Optional BMW Professional RDS audio system, CD player, cassette player. Navigation: Optional navigation system (Mk III or Mk IV DVD-based). Onboard Computer: Check Control system providing vehicle status and warnings. Driver Assistance Parking Assist: Optional rear park distance control (PDC). Connectivity Cellular: Optional BMW Assist (emergency call, tele-service). 🔧 Maintenance Service Intervals Oil Change Interval: BMW Condition Based Service (CBS) system, typically 10,000-15,000 miles or annually. Engine Air Filter: Inspect every 15,000 miles, replace as needed or every 30,000 miles. Cabin Air Filter: Replace annually or every 15,000 miles. Spark Plugs: Replace every 60,000 miles (Long-life spark...