2016 AUDI A8 Structure Problems

The contact owns a 2016 Audi A8. The contact stated while driving at various speeds, the vehicle hesitated. Additionally, after starting the vehicle in the morning, the vehicle was shaking until the engine warmed up. The contact stated no warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed; however, the cause of the failure was not determined. The contact researched online and related the failure to NHTSA Campaign Number: 22V178000 (Engine and Engine Cooling), 20V397000 (Structure), and 19V057000 (Fuel System, Gasoline). The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 42,000.