I have had a rattle for 2000 miles from new and have and it isolated to the rear quarter-lights and trim panels on the sides. They need taking out by your dealer and the clips and surrounds need soundproofing. All the talk about boot cover was not the cause on my S. It took three trips to the dealer to find it. They have just done the o/s but will need to do the n/s on mine too. It was a big pain but I now know what to say. I hope this helps.