"MARC" our blue cooper s,has gone to the dealer today,so that the cold start/rattle noise can be looked at again,they are going to have the car for a week to see if they can get to the bottom of it,its now took over 6 months to get this far,so hopefully they can get it sorted,fingers crossed,the first time we took the car they told us"it was nothing" "my imagination" and " part of the character of the car ",,then we took the car elsewhere,where they bled the gasket,but the noise returned,in the end had to write to BMW.