The contact owns a 2014 BMW 435I. The contact stated that while driving uphill at an undisclosed speed, the vehicle stalled without warning. The vehicle failed to restart and was towed to the dealer. The dealer determined that the fuel pump needed to be replaced and the computer needed to be reprogrammed. The dealer informed the contact that the vehicle had previously been repaired under NHTSA Campaign Number: 15V189000 (Fuel System, Gasoline). The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was approximately 96,911.