I bought a mini r52 2006 two months ago, the dealer gave it back to me yesterday after being there for more than a month because they were changing a few things that were in warranty one of them was the supercharger wich they replaced it with a original new one, yesterday an this morning the mini worked good but after making a hard u turn in a trafic light it didnt wanted to accelerate and after 3 or 5 seconds it turned off. Then i tried to turn it on and it turns on fine but after 2 or 3 seconds it turns off because doesnt want to accelarate. What this could be? Somebody told me that it can be a loose hose of the supercharger.