Complaints are reports from owners of this model year, not findings about any particular vehicle, and a model that sold in large numbers will collect more of them. They are counted here as filed; nothing is inferred from them.
Due to the improper weld, the driveshaft may fracture and fail, causing loss of drive to the rear wheels and a loss of propulsion. Additionally, if the car is turned off and exited without the parking brake applied, the car may roll. Either condition increases the risk of a crash.
Two 2015 BMW M5s can have entirely different histories, and a recall campaign usually covers a build-date window rather than a whole model year — which a VIN does not encode, so only the door-jamb label settles it. Scanning the VIN adds the decode, the crash tests, the fuel economy and the complaints matched to that exact engine, trim and assembly plant.