One problem related to engine noise has been reported for the 2015 Audi A3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Audi A3 based on all problems reported for the 2015 A3.
Vehicle was in motion on highway traveling at 65 mph. Engine ceased without warning. Absolutely no power or engine noise when accelerating. Vehicle went from 65 to 0 mph in seconds. No steering control as well!! could have been killed. Head of service at Audi dealership says that it happens all the time & Audi is doing absolutely nothing. Said do not take car back. . . They're playing "russian roulette" with your life and won't do anything until someone gets killed.