The contact owns a 2015 BMW 528I. The contact stated that upon starting the vehicle, the engine warning light illuminated. The contact stated that the vehicle was taken to an independent mechanic who determined that the vehicle had experienced coolant failure. The vehicle was repaired. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 74,860. VIN tool confirms parts not available.