Hi, I have got a mini one seven and for the last several months i have been having a problem where when i pull off in either forward or reverse i am getting a klunking noise, like metal hitting metal, it has recently started doing it when going along and changing gear and when applying the throtle or taking you foot off the power. its been in to mini several times and had all engine mounts changed and drive shaft. has any1 else ever had this problem or know what it could be. any advise will be very usefull???