Two problems related to clutch broken have been reported for the 2011 Ford Fiesta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Ford Fiesta based on all problems reported for the 2011 Fiesta.
Erratic shifting upon acceleration and deceleration, clutch shuddering on light acceleration, lack of power, and car jostling forward when braking at low speeds followed by almost stalling. This jostling requires me to press the brake hard to prevent a sudden forward-jerking motion. The jostling/jerking often happens when decelerating at intersections, making it dangerous for cars and people in front of me if I do not press the brake hard before coming to a complete stop. Since early July, the car exhibits the same symptoms all the time when driving, making it generally unsafe for regular use. See uploaded vehicle service assessment from Ford - they determined that there is a clutch and clutch fork b failure but no codes related to this concern were present during their diagnosis. The care was released and deemed "drivable" by the dealership.
Excessive "shuddering" in dual-clutch transmission when pulling away from a stop. This is a widely-known design defect, but Ford has not done enough to help affected customers. Every Ford technician openly acknowledges that it's a design flaw, and they know how to fix it. This is a safety issue since the car can stop dead in its tracks on a highway when the clutch fails. A recall is warranted.