🏷️ Basic Information Identification Make: BMW Model: M3 Year: 2004 Chassis Code: E46 Codes Engine Code: S54B32 👋 Introduction Market Position Positioning: High-performance luxury sports sedan/coupe, a benchmark in its class for driving dynamics and engineering. Competitive Analysis Competitors: Mercedes-Benz C55 AMG, Audi S4, Porsche 911 (as a performance benchmark) Key Features Design Philosophy: Driver-focused, motorsport-derived technology, balanced chassis, powerful naturally aspirated engine. Performance Focus: Engineered for exhilarating performance, precise handling, and track capability. 📋 Manual Details Coverage Areas Manual Type: Full Service Repair Manual Language: English Format: Digital (likely PDF) Page Count Page Count: Extensive (typically 1000+ pages for BMW M models) 📖 Manual Coverage Systems Covered Engine: 3.2L S54 inline-6, including Vanos, valvetrain, lubrication, cooling, fuel injection, ignition, engine management (DME) Transmission: 6-speed manual (Getrag 420G), clutch system, driveline, differential Brakes: Front & rear disc brakes, ABS, DSC, brake fluid service Suspension Steering: Front & rear suspension components, struts, shocks, control arms, bushings, power steering system Electrical: Battery, charging system, starter, lighting, fuses, relays, ECUs, wiring diagrams, body control module (BCM) Bodywork Interior: Body panels, doors, windows, locks, seats, HVAC system, interior trim, convertible top (if applicable) Diagnostics: OBD-II diagnostics, fault code retrieval, troubleshooting procedures, specific BMW diagnostic tools (e.g., DIS, ISTA/D) Procedures Included Maintenance: Oil changes, filter replacements (oil, air, cabin), spark plug replacement, coolant flushes, brake fluid bleeding, differential fluid change, general inspections Repair: Engine rebuilds, transmission overhauls, suspension component replacement, brake caliper service, alternator replacement, starter motor repair, sensor replacement Troubleshooting: Step-by-step diagnostic flowcharts for common and uncommon issues, electrical system fault finding, drivability problems Rebuild Refurbish: Detailed instructions for complete engine, transmission, and differential rebuilds, including torque specifications and clearances Restoration: Guidance on component refurbishment, material specifications, and procedures relevant to returning the vehicle to original condition Technical Depth Depth: Comprehensive, covering basic maintenance to complete engine and drivetrain rebuilds, including advanced diagnostics and electronic system repairs. 📊 Manual Specifications File Format File Format: PDF (searchable text, layered diagrams if original source) Print Quality Print Quality: High resolution for clear diagrams and text Binding Type Binding Type: N/A (for digital format) Paper Type Paper Type: N/A (for digital format) ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated Inline 6-cylinder Engine Code: S54B32 Displacement: 3.2 Liters (3246 cc) Bore X Stroke: 87.0 mm x 91.0 mm Compression Ratio: 11.5:1 Valvetrain: DOHC, 4 valves per cylinder, Double VANOS (variable valve timing) Performance Horsepower: 333 hp @ 7900 rpm Torque: 262 lb-ft @ 4900 rpm Redline: 8000 rpm Fuel System Fuel Delivery: Electronic Fuel Injection (EFI), individual throttle bodies (ITBs) Fuel Type: Premium Unleaded (91+ octane recommended) 🔧 Transmission Standard Type: 6-Speed Manual Manufacturer: Getrag Model: 420G Optional Type: SMG (Sequential Manual Gearbox) Version: SMG II (with paddle shifters) Features Drivetrain: Rear-Wheel Drive (RWD) Differential: Limited Slip Differential (LSD) 📐 Dimensions Exterior Coupe Length: 177.7 inches (4514 mm) Coupe Width: 70.1 inches (1780 mm) Coupe Height: 53.7 inches (1365 mm) Convertible Length: 177.7 inches (4514 mm) Convertible Width: 70.1 inches (1780 mm) Convertible Height: 54.4 inches (1382 mm) Wheelbase: 107.5 inches (2731 mm) Weights Curb Weight Coupe: 3,415 lbs (1549 kg) Curb Weight Convertible: 3,704 lbs (1680 kg) 🛡️ Safety Features Ratings NHTSA Front Impact: 4/5 Stars (Driver/Passenger) IIHS Side Impact: Good (for comparable models of the era) Active Features Stability Control: Dynamic Stability Control (DSC) Traction Control: Automatic Stability Control + Traction (ASC+T) ABS: Anti-lock Braking System (ABS) Passive Features Airbags: Frontal airbags, side airbags (front seats), knee airbags (driver) Seatbelts: Pretensioners and force limiters 💡 Technology Features Infotainment Head Unit: BMW Business CD or Professional CD radio with cassette player, optional navigation system (MKIV). Audio System: Optional Harman Kardon sound system. Driver Assistance Parking Sensors: Optional Park Distance Control (PDC) Cruise Control: Standard cruise control system. Connectivity Bluetooth: Optional Bluetooth phone integration (with specific cradles). Telematics: Optional BMW Assist telematics system. 🔧 Maintenance Service Intervals Oil Change: BMW Condition Based Service (CBS) system, typically 10,000-15,000 miles or annually. Check oil level frequently. Spark Plugs: Typically every 60,000 miles (refer to manual for specific type and gap) Coolant Flush: Every 2-3 years or 30,000-45,000 miles Brake Fluid: Every 2 years (DOT 4) Fluid Specifications Engine Oil: BMW Longlife-01 (LL-01) certified synthetic oil, SAE 0W-40 or 5W-40 recommended. Capacity: approx. 6.5 liters (6.9 US quarts) Coolant: BMW Blue Antifreeze/Coolant (G48 ethylene glycol based), mixed 50/50 with distilled water. Capacity: approx. 8.0 liters (8.5 US quarts) Brake Fluid: DOT 4 High Performance Transmission Fluid Manual: MTF LT-2 (Manual Transmission Fluid), 2.1 liters (2.2 US quarts) Differential Fluid: SAF-XJ (Synthetic Axle Fluid XJ), 1.0 liter (1.1 US quarts) Known Issues Rod Bearings: Increased wear, particularly on early S54 engines. Regular inspection and replacement recommended for high-mileage or hard-driven vehicles. Vanos System: Degradation of seals and pump can lead to reduced performance and rough idling. Solenoid failure is also...