🏷️ Basic Information Identification Make: Maserati Model: Quattroporte Generation: M139 Codes Engine Code: 4.2L DOHC VVT Production Years Model Years: 2004-2012 👋 Introduction Market Position Segment: Luxury Executive Sedan Competitive Analysis Competitors: BMW 7 Series, Mercedes-Benz S-Class, Audi A8, Porsche Panamera, Jaguar XJ Key Features Design Philosophy: Italian design heritage combined with performance, luxury, and a focus on driver engagement. Powertrain Emphasis: Naturally aspirated V8 engine providing a distinctive exhaust note and linear power delivery. Manual Value Proposition: Provides professional-level repair and maintenance data for owners and independent workshops to maintain the vehicle's performance and longevity. 📋 Manual Details Coverage Areas Mechanical: Engine, Transmission, Drivetrain, Suspension, Steering, Brakes Electrical: Wiring Diagrams, ECUs, Sensors, Lighting, Audio System Bodywork: Body Panels, Chassis, Interior Trim, Doors, Windows Diagnostic: Troubleshooting Guides, Fault Codes, Diagnostic Procedures Page Count Estimated Pages: Hundreds (exact number not specified, but stated as extensive) Manual Type Type: Factory Service Repair Workshop Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine System: Complete engine disassembly, assembly, tuning, and component replacement for the 4.2L V8 engine, including timing, lubrication, cooling, and fuel injection systems. Transmission System: Service and repair procedures for the automatic transmission, including fluid changes, valve body diagnosis, and electronic control unit (ECU) interactions. Drivetrain System: Maintenance and repair of the rear-wheel drive system, including driveshafts, differentials, and axles. Suspension And Steering: Detailed procedures for front and rear suspension components, adaptive damping systems (if equipped), power steering system, and wheel alignment specifications. Brake System: Service, repair, and bleeding procedures for the hydraulic braking system, including ABS, EBD, and potential brake-assist systems. Electrical System: Comprehensive wiring diagrams, component locations, diagnostic procedures for ECUs, sensors, ignition system, lighting, power windows, seats, climate control, and infotainment. Body And Chassis: Information on body panel removal and installation, door mechanisms, interior trim, glass replacement, and structural components. Procedures Included Routine Maintenance: Oil and filter changes, fluid level checks and top-offs, air filter replacement, spark plug replacement, brake pad and rotor inspection/replacement. Troubleshooting: Systematic diagnosis of common and uncommon problems, including symptom-based troubleshooting charts and fault code interpretations. Component Repair Rebuild: Step-by-step instructions for overhauling major components such as the engine, transmission, and suspension parts. Diagnostic Testing: Procedures for using diagnostic scan tools, checking sensor readings, and performing specific system tests. Specifications And Tolerances: Torque values, clearances, fluid capacities, and other critical specifications for all repair procedures. Technical Depth Depth: Comprehensive, covering basic maintenance to full engine and transmission rebuilds, including detailed electrical schematics and diagnostic information. 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Printable (single pages or entire manual) Binding Type Binding: Digital (no physical binding) Paper Type Paper Type: N/A (Digital) Software Compatibility Os Compatibility: Windows and macOS Licensing Usage License: Lifetime use on unlimited devices, no expiry dates, no renewal fees. ⚙️ Engine Specifications Primary Engine Engine Type: Naturally Aspirated V8 Displacement: 4.2 Liters (4244 cc) Valve Train: DOHC (Double Overhead Camshafts), 4 Valves per Cylinder, Variable Valve Timing (VVT) Bore X Stroke: 95.0 mm x 75.0 mm (approximate) Compression Ratio: 11.4:1 (typical for this engine) Performance Horsepower: 335-400 hp @ 6000-6800 rpm (depending on specific model year/variant) Torque: 317-330 lb-ft @ 4500-5000 rpm (depending on specific model year/variant) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Premium Unleaded Gasoline (91 octane or higher recommended) Lubrication Oil Capacity: Approximately 8.5 Liters (8.9 US quarts) - Refer to manual for exact spec and type. Recommended Oil Spec: Refer to manual for specific viscosity (e.g., 0W-40 or 5W-40) and API/ACEA specifications. 🔧 Transmission Standard Transmission Type: 6-Speed Automatic (ZF 6HP26/6HP28) Optional Optional Transmission: N/A for this engine variant and model generation. Features Gear Ratios: Refer to manual for detailed gear ratios and final drive ratio. Transmission Fluid Type: Refer to manual for specific ZF Lifeguard Fluid specification (e.g., Lifeguardfluid8). Transmission Fluid Capacity: Refer to manual for exact capacity for fluid change or complete refill. 📐 Dimensions Exterior Length: Approx. 5050 mm (198.8 in) Width: Approx. 1895 mm (74.6 in) Height: Approx. 1440 mm (56.7 in) Weights Curb Weight: Approx. 1950-2000 kg (4300-4410 lbs) Wheelbase: Approx. 3000 mm (118.1 in) Wheel Bolt Pattern: 5x114.3 mm Tire Sizes: Commonly 245/40 R19 front, 275/35 R19 rear (check manual for variations) 🛡️ Safety Features Ratings Crash Test Ratings: N/A specific official ratings for all markets, but designed to meet international safety standards. Refer to vehicle's original market homologation. Active Features Braking System: ABS (Anti-lock Braking System), EBD (Electronic Brake-force Distribution), potentially Brake Assist. Stability Control: ASR (Anti-Slip Regulation), potentially Maserati Stability Program (MSP) or similar electronic stability control. Passive Features Airbags: Front, side, and curtain airbags as standard. Specific count may vary by region. Seatbelts: Pretensioning seatbelts with force limiters. 💡 Technology Features Infotainment System Overview: Features include navigation, premium audio systems (e.g., Bose, Harman Kardon), climate control, and...