Detroit Tuned is proud to offer you a official MINI Cooper S R55-R61 Timing Chain / Tensioner Kit to service the problem you are having with your gen 2 N14 or N18 motor. If you start up your car in the morning and you hear a rattling at start up or when it's cold out, then you are having a problem. Once it starts to rattle, it can jump teeth and cause the car to run poorly. It can even get so bad as to be off several teeth, to the point you can not drive it without any check engine lights.
Note: This does require special tools to keep the cams and engine in TDC. Recommended for expert mechanics.