Manifold/header/muffler/tail Pipe problems of the 2012 Volkswagen EOS

Tl-the contact owns a 2012 Volkswagen Eos. The contact stated that while driving approximately 20 mph, the vehicle jerked forward and failed to accelerate as the check engine and epc warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that cylinder 1 and 2 miss fired. As a result, the intake manifold and two ignition coils needed to be replaced. The vehicle was repaired but the failure recurred. The vehicle was taken back to the dealer where it was diagnosed that cylinder 4 misfired and needed to be repaired. The vehicle was repaired. The manufacturer was notified of the failure. The failure mileage was 28,000. Ss.