[bthomas]

While driving on the freeway my X5 suddenly lost power and light grey smoke was coming out of the exhausts. I manage to get over the hill and pull over in a safe place. I was informed by the dealer that it is probably a turbo issue. I tried starting the car again, it turned over once or twice and then just refused. It just gave a malfunction error.
The dealer has diagnosed it as a turbo issue, but they cannot get the engine to turn over so are telling me I need to replace the engine and all three turbos.
I am questioning the diagnostic skills of the technicians. Can a blown turbo really destroy the engine? Could it not be an electronic issue preventing the engine from turning over?
Replacing the engine and turbos will cost as much as I paid for the vehicle.
Not sure if anyone on this forum has any advice, I'm really hoping to not have to replace the engine.