The contact owns a 2015 BMW 428I. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated while driving approximately 30-40 MPH, there was smoke coming from underneath the hood of the vehicle. The dealer was not contacted. The manufacturer was made aware of the issue. The failure mileage was 151,940. VIN tool confirms parts not available.