The contact owns a 2014 BMW X3. The contact stated that while driving at an undisclosed speed, the contact noticed smoke coming from the engine compartment. There was no warning light illuminated. The vehicle was able to be restarted. The contact received notification of the NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was unavailable. The dealer was contacted and confirmed that parts were not yet available. The vehicle was not diagnosed or repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The failure mileage was not available. VIN tool confirms parts not available.