The Ford Flex is a full-size crossover SUV introduced for the 2009 model year and produced through 2012, offering a distinctive, unconventional styling focused on interior space and comfort. This versatile vehicle features standard 3-row seating for up to seven passengers and is built on the D4 platform, shared with Lincoln models. Available with a naturally aspirated 3.5-liter V6 engine or an optional twin-turbocharged 3.5-liter EcoBoost V6 (from 2010), the Flex provides a comfortable ride and ample cargo capacity, making it a unique option in its segment, which included competitors like the Chevrolet Traverse and Toyota Highlander. Its engineering quality is underscored by its strong safety ratings, including 5-star NHTSA front and side impact ratings and IIHS Top Safety Pick awards. This comprehensive Workshop Service Repair Manual, presented in English, covers the Ford Flex models from 2009 to 2012. With over 6,000 pages, it offers extensive detail on all aspects of the vehicle, from scheduled maintenance procedures, fluid specifications, and routine service intervals to in-depth troubleshooting guides and step-by-step repair instructions for all major systems. This includes detailed coverage of the engine mechanical and electrical components, the 6-speed automatic transmission, chassis systems like suspension and brakes, the electrical system, HVAC, and body and frame repairs. The manual is an indispensable resource for owners, technicians, and mechanics seeking to maintain, diagnose, and repair the Ford Flex accurately and efficiently.