Just Bought my MINI Cooper S a week ago and its been making this rattling sound on the top/right side of engine when its idling or when you give it the gas.Its getting pretty loud so now im even more concerned then I was when I bought it.It was doing it lightly when I bought the car but they said it was just a supercharger pully,and that they would warranty it for me so I had nothing to worry about.Now im concerned that it might mess up somthing else while im driving it.Any advice would be greatly appreciated.:)

id send it back to them and ask for your money back asap, mine started with a small rattle now apparently its fubar and is prob a write off