🏷️ Basic Information Identification Make: Mercury Model: Grand Marquis Year: 2009 Body Style: Full-size Sedan Generation Generation Name: Fourth Generation (2003-2011) Generation Code: DE114 Codes Platform: Ford Panther Platform 👋 Introduction Market Position Segment: Full-Size Sedan, Luxury/Comfort Oriented Target Audience: Consumers seeking a comfortable, spacious, and durable RWD sedan; DIY enthusiasts and independent repair shops. Competitive Analysis Competitors: Chevrolet Impala, Dodge Charger, Toyota Avalon, Buick Lucerne Key Features Vehicle Strengths: Robust body-on-frame construction, powerful V8 engine, comfortable ride, spacious interior, rear-wheel drive. Manual Advantages: Licensed OE data, digital convenience, comprehensive coverage, user-friendly interface, cost-effective compared to dealership manuals. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive Factory Service and Repair Information Page Count Estimated Pages: Thousands (Digital Format) Manual Type Type: Official Service and Repair Manual Software Language Language: English Format Format: Online Access (Web Browser Based) Access Access Duration: 1 Year Subscription Renewal Options: Discounted additional years available Compatibility Device Compatibility: PC, Laptop, Smartphone, Tablet Browser Requirements: Any Modern Web Browser with Internet Connection 📖 Manual Coverage Systems Covered Powertrain: Engine Mechanical, Fuel System, Ignition System, Exhaust System, Cooling System, Engine Control Systems (PCM/ECM) Drivetrain: Automatic Transmission (4R75E/4R75W), Driveshaft, Axles, Differential Chassis: Suspension (Front Independent, Rear Solid Axle), Steering System (Hydraulic Power), Brakes (Front Disc, Rear Disc, ABS, Traction Control) Electrical: Body Control Module (BCM), Powertrain Control Module (PCM), Lighting, Instrumentation, Audio System, Power Accessories, Wiring Diagrams (Complete) HVAC: Heating, Ventilation, Air Conditioning (HVAC) System Components and Operation Body: Body Exterior Panels, Doors, Hood, Trunk, Interior Trim, Glass Procedures Included Maintenance: Scheduled Maintenance, Oil Changes, Filter Replacements, Fluid Checks and Top-offs Diagnostics: Troubleshooting Guides, Symptom-Based Diagnostics, Diagnostic Trouble Codes (DTCs) Interpretation and Resolution Repair: Component Removal and Installation, System Overhauls, Reassembly Procedures Electrical Repair: Wiring Harness Repair, Component Testing, Connector Pinouts Special Procedures: Torque Specifications for Critical Fasteners, Alignment Procedures, Drivetrain Calibration Technical Depth Depth: Extensive; Covers Basic to Advanced Repair and Diagnostics Information Source: Licensed OE (Original Equipment) Materials 📊 Manual Specifications File Format Format Type: Web-Based Application Print Quality Printability: Content is accessible and can be printed chapter by chapter or section by section. Binding Type Binding: N/A (Digital Format) Paper Type Paper: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: 4.6L V8 Modular (32-Valve DOHC) Engine Code: 1F7 Displacement: 281 cu in (4.6 L) Performance Horsepower: 224 hp @ 4,700 rpm Torque: 272 lb-ft @ 3,500 rpm Fuel System Induction: Sequential Multi-Port Electronic Fuel Injection (MPI) Fuel Type: Regular Unleaded Gasoline (87 Octane Recommended) Emission Controls System: California Emissions System (where applicable), OBD-II Compliant 🔧 Transmission Standard Transmission Type: 4-Speed Automatic Transmission Model: 4R75E / 4R75W Features Drive Type: Rear-Wheel Drive (RWD) Transmission Fluid Type: Mercon V Automatic Transmission Fluid (ATF) 📐 Dimensions Exterior Length: 212.0 inches (5,385 mm) Width: 78.1 inches (1,984 mm) Height: 58.0 inches (1,473 mm) Wheelbase: 114.7 inches (2,913 mm) Front Track: 61.4 inches (1,560 mm) Rear Track: 61.4 inches (1,560 mm) Weights Curb Weight: Approximately 4,020 - 4,150 lbs (1,823 - 1,882 kg) Gross Vehicle Weight Rating: Approximately 5,200 lbs (2,359 kg) Cargo Trunk Volume: 20.6 cubic feet (583 L) 🛡️ Safety Features Ratings NHTSA Frontal Driver: ★★★★★ (5-Star) NHTSA Frontal Passenger: ★★★★★ (5-Star) NHTSA Side Driver: ★★★★☆ (4-Star) NHTSA Side Passenger: ★★★★☆ (4-Star) NHTSA Rollover: ★★★★☆ (4-Star) Active Features ABS: Standard 4-Wheel Anti-lock Braking System (ABS) Traction Control: Standard Traction Control System (TCS) Passive Features Airbags: Frontal Airbags (Driver and Passenger), Front Side-Impact Airbags Seatbelts: Front Height-Adjustable Safety Belts with Pretensioners, Rear 3-Point Safety Belts Child Seat Anchors: LATCH (Lower Anchors and Tethers for Children) System 💡 Technology Features Infotainment Audio System: Standard AM/FM Stereo with CD Player, optional Sirius Satellite Radio, optional premium audio system. Display: Analog gauges and a central information display; no touchscreen infotainment standard. Driver Assistance Parking Assist: Optional Rear Parking Assist System Connectivity Connectivity Features: Limited by modern standards; primarily basic audio connectivity (e.g., AUX input on some trims). Convenience Cruise Control: Standard Cruise Control 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 miles (8,000 km) or 6 months, whichever comes first, under normal driving conditions. Severe conditions may require more frequent changes. Tire Rotation: Every 5,000 miles (8,000 km) Transmission Fluid Change: Refer to manual for specific mileage/time interval, often around 100,000 miles (160,000 km) or based on severe usage. Fluid Specifications Engine Oil Type: SAE 5W-20 Full Synthetic Motor Oil (API SN or latest) Engine Oil Capacity: 6.0 U.S. Quarts (5.7 Liters) with filter change Coolant Type: Motorcraft® Gold Premium Engine Coolant (or equivalent meeting WSS-M97B51-A1 specification) Brake Fluid Type: DOT 3 Motor Vehicle Brake Fluid Known Issues Common Wear Items: Ball joints, tie rod ends, wheel bearings (due to heavy duty chassis), rear air suspension (if equipped with optional air suspension), PI (Performance Improved) intake manifold failures (earlier models, less common by 2009). Electrical Gremlins: Sporadic issues with door...