🏷️ Basic Information Identification Make: Ford Model: Flex Year: 2009-2012 Generation Generation Designation: First Generation (UN171) Codes Platform Code: D4 platform 👋 Introduction Market Position Vehicle Segment: Full-size Crossover SUV (discontinued) Target Audience: Families seeking versatile, spacious, and stylish transportation Competitive Analysis Key Competitors: Chevrolet Traverse, Buick Enclave, GMC Acadia, Mazda CX-9, Toyota Highlander Key Features Design: Distinctive, modern styling with a 'wagon-like' profile Interior Space: Spacious, flexible seating for up to seven passengers, optional second-row captain's chairs Powertrain Options: Available naturally aspirated and turbocharged V6 engines 📋 Manual Details Coverage Areas Applicable Models: All Ford Flex 2009, 2010, 2011, 2012 models Applicable Trims: All trim levels (e.g., SE, SEL, Limited) Applicable Engines: All engine variants (e.g., 3.5L V6 Duratec, 3.5L EcoBoost V6) Applicable Transmissions: All transmission types (e.g., 6-speed automatic) Page Count Estimated Page Count: Hundreds of pages (exact count not specified, but described as comprehensive) Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Powertrain: Engine service/repair, Transmission service/repair, Differential/Drive, Axle Chassis: Brake System, Suspension, Steering, Chassis/Body Electrical And Electronics: Wiring Diagram, Electrical System, Engine Control System Comfort And Convenience: Cooling System, Fuel Injection/Fuel System, Emission System, Heater/Air Conditioning, Interior Safety And Restraint: Restraint System Procedures Included Maintenance: General Maintenance, Periodic Lubrication Repair: Detailed repair procedures for all major systems Troubleshooting: Comprehensive troubleshooting guides for diagnostics Diagnostics: Diagnostic information for electrical and mechanical systems Assembly Disassembly: Disassembly and reassembly procedures Technical Depth Depth: Professional-level diagnostics, maintenance, and repair Detail Level: Detailed substeps, notes, cautions, warnings, numbered instructions, bold figure numbers Illustrations: Hundreds of diagrams, detailed illustrations, drawings, and photos, enlarged insets 📊 Manual Specifications File Format Format: PDF Print Quality Printability: Full Printable Zoom Functionality: Zoom IN/OUT functionality Binding Type Type: Digital Download (implying no physical binding) Paper Type Type: Not Applicable (Digital Format) Requirements Software Requirements: Adobe PDF Reader & WinZip Compatibility: All Versions of Windows & Mac Delivery Method: Instant Download ⚙️ Engine Specifications Primary Engine Engine Code 1: 3.5L V6 Duratec (3.5L Cyclone) Displacement 1: 3.5 liters (3496 cc) Configuration 1: V6 Horsepower 1: 262 hp @ 6250 rpm (estimated for 2009-2012) Torque 1: 248 lb-ft @ 4500 rpm (estimated for 2009-2012) Performance Engine Code 2: 3.5L EcoBoost V6 Displacement 2: 3.5 liters (3496 cc) Configuration 2: Twin-turbocharged V6 Horsepower 2: 355 hp @ 5700 rpm (estimated for 2010-2012) Torque 2: 350 lb-ft @ 1500-5250 rpm (estimated for 2010-2012) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline Emission Controls: Catalytic converter, On-Board Diagnostics (OBD-II) 🔧 Transmission Standard Type Standard: 6-speed automatic transaxle (SelectShift) Optional Type Optional: All-Wheel Drive (AWD) Features Driver Control: SelectShift Automatic Transmission (manual shifting capability) 📐 Dimensions Exterior Length: Approx. 201.8 inches (5126 mm) Width: Approx. 78.2 inches (1986 mm) Height: Approx. 69.3 inches (1760 mm) Wheelbase: Approx. 117.9 inches (2995 mm) Weights Curb Weight FWD 3.5L: Approx. 4,577 lbs (2076 kg) Curb Weight AWD 3.5L: Approx. 4,779 lbs (2168 kg) Curb Weight AWD 3.5L Ecoboost: Approx. 4,832 lbs (2192 kg) Cargo Cargo Volume Behind 1St Row: Approx. 83.2 cubic feet (2356 L) Cargo Volume Behind 2Nd Row: Approx. 40.0 cubic feet (1133 L) Cargo Volume Behind 3Rd Row: Approx. 20.0 cubic feet (566 L) 🛡️ Safety Features Ratings NHTSA Overall Rating: 4 out of 5 stars (for models tested during this period, actual ratings vary by year) Active Features Stability Control: Electronic Stability Control (AdvanceTrac with Roll Stability Control) Traction Control: Traction Control System (TCS) ABS: Anti-lock Braking System (ABS) Passive Features Airbags: Front airbags, front side-impact airbags, side-curtain airbags for all three rows Seatbelts: 3-point safety belts with pretensioners, LATCH (Lower Anchors and Tethers for CHildren) system 💡 Technology Features Infotainment Available Systems: Ford SYNC infotainment system (voice-activated communication and entertainment) Display: Touchscreen displays (sizes varied by trim and option packages) Driver Assistance Features: Available rearview camera, blind-spot monitoring, adaptive cruise control (depending on year and trim) Connectivity Ports: USB, Auxiliary input jacks Bluetooth: Bluetooth connectivity for hands-free calling and audio streaming 🔧 Maintenance Service Intervals Oil Change Interval: Refer to manual (typically 7,500-10,000 miles or 12 months, whichever comes first, with synthetic oil) Tire Rotation: Refer to manual (typically every 5,000-7,500 miles) Cabin Air Filter: Refer to manual (typically every 15,000-30,000 miles) Engine Coolant Flush: Refer to manual (e.g., 100,000 miles for initial, then every 50,000 miles) Fluid Specifications Engine Oil Type 3.5L: SAE 5W-20 (synthetic blend or full synthetic recommended) Engine Oil Capacity 3.5L: Approx. 6.5 quarts (6.2 Liters) with filter change Transmission Fluid Type: Mercon LV (or equivalent meeting Ford specification) Engine Coolant Type: Ford Premium Engine Coolant (VC-3D) or equivalent (typically a yellow color, long-life coolant) Brake Fluid Type: DOT 3 Known Issues Common Issue 1: Coolant leaks from the degas bottle or intake manifold gaskets Common Issue 2: Transmission shudder or...