One problem related to engine clicking and tapping noises has been reported for the 2013 Volkswagen Passat. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Volkswagen Passat based on all problems reported for the 2013 Passat.
Vehicle lost power while on the highway in busy traffic. Glow plug light began flashing (it's a tdi) and I heard a clicking noise. I pulled over and the vehicle was immediately engulfed in smoke. I waited on the shoulder over an hour for a tow with continued busy 60+ mph traffic. Vehicle was towed to the closest dealer. They've diagnosed it as a turbocharger failure. Clearly this shouldn't happen at only 15,000 miles but it appears to be common. Turbo and exhaust system are being replaced under warranty.