One problem related to engine noise has been reported for the 2005 Volkswagen Passat. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Volkswagen Passat based on all problems reported for the 2005 Passat.
Engine noise, rattle, oil light. Engine (turbo diesel // Passat) does not seem normal and much noisier than usual. Other fiends with tdi's have had major concerns with their cars (same circumstances).