I have a 2004 Mini Cooper S (r53) with about 83000 miles on it. It is a manual. Recently it has been producing a sort of rattling noise particularly when I have been driving for a while and have to come to a stop and idle. It typically will stop after I am in motion for a relatively short period of time. It also occurs is I turn the car on (from a cool engine) and then idle for an extended period of time without ever moving. Due to the inconsistent noise I do not think that it is a supercharger issue. I think it may be the fan that cools the engine as it is only when the engine is hot. Also I live in Georgia so the outside temperature does not help in cooling it down. Can anybody give me any ideas on what is wrong with it? If you need anymore information just ask.

Thanks

 

timing chain or tensioner