Vehicle Segment:
        
        
            Luxury Sedan
        
     
    
        
            Target Audience:
        
        
            Owners and independent workshops specializing in classic or luxury European vehicles.
        
     
    
    
        
            Competitors Era:
        
        
            Ferrari 400/412, Jaguar XJ-S, Mercedes-Benz S-Class (W126), BMW 7 Series (E23)
        
     
    
    
        
            Manual Value Proposition:
        
        
            Provides professional-level repair and maintenance information, enabling significant cost savings and empowering owners to maintain their classic Maserati.
        
     
    
        
            Manual Advantage:
        
        
            Digital format allows for easy printing of specific sections, saving the original from dirt and wear.
        
     
 
    
    
    
        
            Regions Covered:
        
        
            Global (assumed, as no regional limitations specified)
        
     
    
        
            Models Covered:
        
        
            All Quattroporte (Type AM337) Models, All Engines, All Trim Levels, All Transmission Types
        
     
    
    
        
            Estimated Page Count:
        
        
            Hundreds of pages (as stated in product description)
        
     
    
    
        
            Manual Classification:
        
        
            Workshop Repair Service Manual
        
     
    
        
            Manual Origin:
        
        
            Original Manufacturer (Maserati)
        
     
    
    
    
    
        
            Delivery Format:
        
        
            PDF Download
        
     
    
        
            File Availability:
        
        
            Instant Download
        
     
 
    
    
    
        
            Engine Service:
        
        
            Engine Repair, Engine Rebuild, Diagnosis, Fuel System, Cooling System, Emission System, Engine Control System
        
     
    
        
            Transmission Service:
        
        
            Transmission Repair, Diagnosis, Fluid Specifications, Overhaul
        
     
    
        
            Braking System:
        
        
            Brake System Repair, Diagnosis, Component Replacement
        
     
    
        
            Electrical System:
        
        
            Electrical System Diagnosis and Repair, Wiring Diagrams, Component Testing, Troubleshooting
        
     
    
        
            Suspension Steering:
        
        
            Suspension System Repair, Steering System Repair, Alignment Procedures
        
     
    
        
            Chassis Body:
        
        
            Chassis and Body Repair, Panel Replacement, Structural Integrity
        
     
    
        
            Interior Restraint:
        
        
            Interior Component Repair, Restraint System (Seatbelts) Servicing
        
     
    
        
            Drive Axle:
        
        
            Differential and Axle Service and Repair, Drive System Maintenance
        
     
    
        
            Comfort Systems:
        
        
            Heater and Air Conditioning System Service
        
     
    
    
        
            Maintenance:
        
        
            General Maintenance, Periodic Lubrication, Fluid Changes, Filter Replacements
        
     
    
        
            Troubleshooting:
        
        
            Comprehensive Troubleshooting Guides for All Systems
        
     
    
        
            Repair:
        
        
            Detailed Step-by-Step Repair Procedures for all major components and systems
        
     
    
        
            Diagnostics:
        
        
            Diagnostic procedures for identifying faults
        
     
    
        
            Disassembly Assembly:
        
        
            Complete disassembly and reassembly instructions
        
     
    
        
            Wiring Diagrams:
        
        
            Detailed wiring schematics included
        
     
    
    
        
            Depth Of Information:
        
        
            Comprehensive; covers everything from routine maintenance to full engine and transmission rebuilds, including diagnostics and electrical systems.
        
     
    
        
            Illustrations:
        
        
            Detailed illustrations, drawings, and photos for all procedures
        
     
    
        
            Instructions:
        
        
            Numbered instructions, detailed substeps, critical notes, cautions, and warnings
        
     
 
    
    
    
        
            Engine Type:
        
        
            V8 (90-degree)
        
     
    
        
            Engine Displacement:
        
        
            Typically 4.9 Liters (4930 cc)
        
     
    
        
            Engine Codes Examples:
        
        
            AM307
        
     
    
    
        
            Horsepower Range:
        
        
            Approximately 290-330 hp (varies by specific engine tune and year)
        
     
    
        
            Torque Range:
        
        
            Refer to specific engine variants within the manual for precise figures.
        
     
    
    
        
            Fuel Delivery:
        
        
            Carbureted (Weber) or Fuel Injection (Bosch - later models)
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline (Premium)
        
     
    
    
        
            Ignition System:
        
        
            Electronic Ignition (details covered in manual)
        
     
 
    
    
    
        
            Wheelbase:
        
        
            Approx. 2,830 mm (111.4 in)
        
     
    
        
            Length:
        
        
            Approx. 4,790 mm (188.6 in)
        
     
    
        
            Width:
        
        
            Approx. 1,780 mm (70.1 in)
        
     
    
        
            Height:
        
        
            Approx. 1,380 mm (54.3 in)
        
     
    
    
        
            Curb Weight:
        
        
            Approx. 1,700 - 1,800 kg (3750 - 3970 lbs)
        
     
    
    
        
            Wheel Size:
        
        
            Typically 15-inch or 16-inch alloy wheels
        
     
    
        
            Tire Size Examples:
        
        
            205/60VR15, 225/50VR16 (refer to manual for exact fitments)
        
     
    
        
            Bolt Pattern:
        
        
            5x114.3mm (5x4.5 inch)
        
     
 
    
    
    
        
            Crash Test Data:
        
        
            Limited public crash test data available for this era and specific model. Manual will cover passive safety features.
        
     
    
    
        
            Active Safety Features:
        
        
            Four-wheel disc brakes (ventilated front), ABS (optional on later models)
        
     
    
    
        
            Passive Safety Features:
        
        
            Seat belts (3-point front, 2-point rear), reinforced chassis structure
        
     
 
    
    
    
        
            Infotainment System:
        
        
            Basic for its era; typically an analog radio, cassette player. Manual will cover the integrated audio system's maintenance.
        
     
    
    
        
            Driver Assistance Features:
        
        
            Limited; may include power steering, power windows, central locking. ABS was an option on later models.
        
     
    
    
        
            Connectivity Features:
        
        
            N/A (no modern connectivity like Bluetooth or USB)
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Refer to manual for specific mileage/time intervals; typically 3,000-5,000 miles or 6 months for classic cars.
        
     
    
        
            Major Service Interval:
        
        
            Refer to manual; typically at 30,000, 60,000, 90,000 miles for comprehensive checks and component replacements (e.g., timing belts if applicable).
        
     
    
    
        
            Engine Oil Spec:
        
        
            Refer to manual for viscosity and API service classification (e.g., SAE 10W-40 or 10W-50, API SF/SG)
        
     
    
        
            Coolant Spec:
        
        
            Ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio). Refer to manual for specific type and color.
        
     
    
        
            Brake Fluid Spec:
        
        
            DOT 3 or DOT 4 (refer to manual for specific recommendation)
        
     
    
        
            Power Steering Fluid Spec:
        
        
            Refer to manual for specific hydraulic fluid or ATF specification.
        
     
    
    
        
            Common Wear Items:
        
        
            Suspension bushings, aging rubber components (hoses, seals), electrical connections, carburetor tuning (if applicable), climate control systems.
        
     
    
        
            Engine Reliability:
        
        
            Generally robust V8 engines, but require diligent maintenance. Carburetor synchronization and fuel system cleanliness are key.
        
     
 
    
    
    
        
            Brand Focus:
        
        
            Maserati has a rich heritage in motorsport and the production of luxury performance vehicles.
        
     
    
    
        
            Quattroporte Lineage:
        
        
            The Quattroporte nameplate signifies a 'four-door' luxury grand tourer, a segment Maserati has competed in for decades.
        
     
    
        
            Am337 Context:
        
        
            This generation, the fourth, was a significant departure, featuring more angular styling influenced by Italian design houses and a focus on luxury comfort and a potent V8 engine.
        
     
    
    
        
            Production Period:
        
        
            1979 to 1990
        
     
    
        
            Manufacturing Location:
        
        
            Modena, Italy