Two problems related to engine shut off without warning have been reported for the 2015 Ford Fiesta. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Ford Fiesta based on all problems reported for the 2015 Fiesta.
Driving along and car shut off had it towed to pep boys and was told that it was a crack in cylinder valve. Informed that they could not fix it and then had it towed butler automotive where it is sitting as of 6/25/19.
Occasionally while driving and stopped at stop signals the car shuts off. The car also occasionally shuts off when slowing down. The car always shuts off shortly after fueling, this may occur between 1-4 times after fueling. There has also been oil slowly accumulating around the engine block near the top of the block near the valve cover.