The contact owned a 2016 BMW X3. The contact received notification of NHTSA Campaign Number: 21V907000 (Fuel System, Diesel) however, the part to do the recall repair was not yet available. The contact stated that the dealer had previously performed an engine inspection and pressure test for the coolant system due to coolant loss with the low coolant warning light illuminated. The contact had added a quart of coolant. The contact stated that while his wife was driving at an undisclosed speed, the vehicle lost motive power with a loss of power warning message displayed. The contact's wife was able to pull over on the shoulder of the roadway and noticed there was smoke coming from underneath the hood before it caught fire. The contact's wife was able to safely exit the vehicle. The fire department arrived on the scene and was able to extinguish the fire. Police and fire department reports were filed. The vehicle was towed to a tow yard and then to the contact's residence. The dealer was made aware of the failure and referred the contact to the manufacturer. The vehicle was not yet deemed totaled by the insurance company. The manufacturer was made aware of the failure and informed the contact that an inspector would perform an inspection to determine the cause of the fire. The failure mileage was approximately 88,500. VIN tool confirms parts not available.