One problem related to other fuel system tank assembly has been reported for the 2014 Mini Cooper. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Mini Cooper based on all problems reported for the 2014 Cooper.
Nearly ran out of gasoline because the gas gauge is not accurate. At an indicated 1/2 full, the car is down over 9 gallons and the tank hold about 12. 5 gallons. Using the gas gauge there is no way to tell how much fuel remains in the tank.