NHTSA Complaint #11566310 — 2010 BMW 328I

Approximately, a year ago I took my vehicle to the BWM dealership in Columbus, GA due to a burning smell. The vehicle was making a strange metal on metal noise. I could not figure where the noise was coming from. The check engine light appeared while the constantly would cut off while driving on the highway and idling at red lights and stop signs. At times the vehicle was hesitant to start. After examining my vehicle, the BWM dealership of Columbus, GA told me that they did not see anything wrong and returned the car to me. I have called several times complaining about the same issue. Today, on January 18, 2024, I called with safety recall information and was told that the part is not in, and the remedy is unavailable. This has been going on now for over a year which means I haven't been able to drive my car for a year. Can someone please help?