Two problems related to loud engine noise have been reported for the 2007 Mini Cooper S. The most recently reported issues are listed below.
Timing chain making loud noise when started.
The contact owns a 2007 Mini Cooper S. While driving approximately 40 mph, the engine warning indicator illuminated and an extremely loud noise sounded from the engine. The contact continued driving, and the engine performed as though it were attempting to stall. The vehicle was taken to an authorized dealer where they diagnosed that the timing chain failed. The vehicle was not repaired. The failure mileage was approximately 47,000.