The contact owns a 2014 BMW X3. The contact stated while driving at approximately 55 MPH, the vehicle stalled, and the contact discovered that there was an unknown fluid leaking underneath the vehicle. 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 vehicle was taken back to the residence. The local dealer was contacted. 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 made aware of the issue. The failure mileage was approximately 90,000. VIN tool confirms parts not available.