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Ford Ford Flex

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Ford Flex: A Comprehensive Guide

The Ford Flex is a full-size crossover SUV produced by Ford Motor Company from 2009 to 2019. Known for its distinctive boxy styling and spacious three-row seating, the Flex offered a unique alternative to more traditional SUVs and minivans. While sales never reached the initial projections, the Flex garnered a loyal following and remains a sought-after vehicle on the used car market, praised for its comfort, practicality, and distinctive design.

Generations

First Generation (2009-2019)

The Ford Flex remained largely unchanged throughout its single generation, with subtle updates and refinements over the years.

  • 2009: Initial launch year. Standard features included a 3.5L V6 engine, six-speed automatic transmission, and front-wheel drive (FWD). All-wheel drive (AWD) was optional. Available in SE, SEL, and Limited trim levels.
  • 2010: Minor changes, including a revised climate control system.
  • 2011: The 3.5L EcoBoost V6 engine became available as an option, offering significantly more power. Introduction of MyFord Touch infotainment system (later criticized for its usability).
  • 2013: Significant facelift, including a new grille, hood, and taillights. "FLEX" badging was prominently added to the hood. Interior updates included improved materials and a revised instrument panel. The MyFord Touch system received improvements, but user experience remained a concern for some.
  • 2016: SYNC 3 infotainment system replaced MyFord Touch, providing a much-improved user experience with faster response times and smartphone integration (Apple CarPlay and Android Auto).
  • 2019: Final production year. Ford announced the Flex's discontinuation in October 2019.

Reliability & Common Issues

The Ford Flex, while generally reliable, has certain known issues that potential buyers should be aware of:

Engine Issues:

  • Water Pump Failure (3.5L V6): The internal water pump in the 3.5L V6 engine (especially in earlier models) is a known weakness. When it fails, coolant can leak into the engine oil, leading to catastrophic engine damage if not addressed promptly. Listen for unusual engine noises or coolant loss. Regular oil analysis can help detect coolant contamination early.
  • Timing Chain Issues (3.5L V6 and EcoBoost): Both the standard 3.5L V6 and the EcoBoost version can experience timing chain stretch or failure, especially if oil changes are neglected. Symptoms include rough idling, poor performance, and a "check engine" light. Preventative maintenance, including regular oil changes with high-quality synthetic oil, is crucial.
  • Turbocharger Problems (3.5L EcoBoost): The EcoBoost engine's turbochargers can be susceptible to oil leaks and failures, particularly if the engine is not properly maintained. Listen for whistling noises or a loss of power.
  • Intake Manifold Failure (3.5L V6): Cracking in the intake manifold can occur, causing vacuum leaks and rough running.

Transmission Issues:

  • Torque Converter Problems (6F35/6F50 Transmissions): Some Flex models have experienced torque converter issues, leading to shuddering or hesitation during acceleration. Flushing the transmission fluid regularly can help prevent these problems.

Electrical Issues:

  • MyFord Touch Problems (2011-2015): The MyFord Touch infotainment system was plagued with glitches, slow response times, and software bugs. While Ford released updates to improve the system, it remained a source of frustration for many owners. The 2016+ models with SYNC 3 are a significant improvement.
  • Power Liftgate Malfunctions: The power liftgate can sometimes experience issues, such as failing to open or close properly.
  • Power Window Regulator Failure: Some owners have reported issues with the power window regulators.

Other Issues:

  • PTU (Power Transfer Unit) Failure (AWD Models): The PTU in AWD models is prone to failure, especially if not properly maintained with regular fluid changes. Listen for whining noises from the drivetrain.
  • Rust: While not a widespread issue, some Flex models, especially those in regions with harsh winters, can experience rust, particularly around the wheel wells and rocker panels.

Important Note: Regular maintenance, including oil changes, fluid flushes, and inspections, is critical for ensuring the longevity and reliability of the Ford Flex. Consider having a pre-purchase inspection performed by a qualified mechanic before buying a used Flex.

Driving Experience

The Ford Flex offers a comfortable and spacious driving experience, making it well-suited for families and long road trips.

Pros:

  • Spacious Interior: The Flex boasts a roomy cabin with ample legroom and headroom in all three rows.
  • Comfortable Ride: The suspension is tuned for comfort, providing a smooth and absorbent ride, even on rough roads.
  • Available All-Wheel Drive: AWD provides enhanced traction and stability in inclement weather.
  • Available EcoBoost Engine: The EcoBoost engine delivers strong acceleration and passing power.
  • Unique Styling: The Flex's boxy and distinctive design sets it apart from other SUVs.
  • Cargo Capacity: Offers significant cargo space, especially with the third-row seats folded down.

Cons:

  • Fuel Economy: Fuel economy is not a strong point, especially with the EcoBoost engine.
  • MyFord Touch System (2011-2015): The earlier MyFord Touch infotainment system can be frustrating to use.
  • Visibility: Rear visibility can be somewhat limited due to the thick rear pillars.
  • Handling: While comfortable, the Flex is not particularly sporty or agile. It prioritizes comfort over performance.

Buying Advice

When shopping for a used Ford Flex, consider the following:

Years to Look For:

  • 2016-2019: These models feature the significantly improved SYNC 3 infotainment system, which is a major upgrade over the previous MyFord Touch system. They also benefit from any refinements made by Ford throughout the Flex's production run.
  • 2013-2015: If your budget doesn't allow for a 2016+ model, the 2013-2015 models offer updated styling and interior compared to the earlier versions. Be aware of the MyFord Touch system issues.

Years to Be Cautious Of:

  • 2009-2010: These early models may be more prone to certain mechanical issues, such as the water pump failure in the 3.5L V6. Thoroughly inspect the vehicle and check its maintenance history.
  • Any Flex with MyFord Touch (2011-2015): While not necessarily to be avoided entirely, be aware of the potential frustrations with the MyFord Touch system and factor that into your decision. Consider the trim level. If you prefer advanced technology and easy use, the absence of Android Auto or Apple Carplay can be disappointing.

Key Considerations:

  • Maintenance History: Look for a Flex with a well-documented maintenance history, especially regarding oil changes and fluid flushes.
  • Engine Choice: The 3.5L V6 is adequate for most drivers, but the 3.5L EcoBoost provides significantly more power and torque. Consider your driving style and needs when making your decision. Factor in increased fuel consumption with the EcoBoost.
  • Trim Level: The Limited trim offers the most features, but SEL and even SE trims can be good values if you don't need all the bells and whistles.
  • Pre-Purchase Inspection: Have a qualified mechanic perform a thorough inspection of the vehicle before you buy it, paying particular attention to the engine, transmission, and AWD system (if applicable).
  • PTU Inspection (AWD Models): If considering an AWD model, have the PTU thoroughly inspected for leaks or unusual noises.

By carefully considering these factors, you can find a used Ford Flex that meets your needs and provides years of reliable service.

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