The contact owns a 2011 BMW 328i. The contact stated that while her son was driving at approximately 70 MPH the vehicle began to emit smoke from under the hood. The contact's son was able to safely pull off of the highway, there was no fire and the smoke abated after the vehicle was turned off. The contact stated that her son did not notice any warning lights being illuminated. The contact had the vehicle towed to an independent mechanic where it was diagnosed and determined that the failure was related to NHTSA Campaign Number: 22V119000 (Engine, Engine Cooling). The mechanic determined that the entire engine needed to be replaced. The vehicle was repaired. The manufacturer had not been informed of the failure. The failure mileage was unknown. (RECALL RELATED INCIDENT) TS