One problem related to engine noise has been reported for the 2014 Volkswagen Passat. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2014 Volkswagen Passat based on all problems reported for the 2014 Passat.
Turbocharger failed. Started making noises, then power losses, then dashboard lights. By the time I got to the dealership, it was no longer drivable. Dealership diagnosed turbocharger failure due to 'internal malfunction' and stated that it was not a problem that could have been caused by driving style, external factors.