Hi and anyone who has exsperienced this problem could help me I have an Audi s3 8l which is making a funny noise now and again it is rummbling /droning when letting off accelerator for 5 mins and suddenly stops stero vibrates whole car exshaust note changes!!! Only when letting of ie rolling too a stop its not the exshaust as I had this rattle and uprated dog bone sorted this! There is no fault codes on vcds! And has gone away very noticeable noise happens randomly and goes within 5 mins!cam chain tensioner is my thoughts as it rattles on startup after being parked until revved but obviously it feels diffrent when drivin as can hear rattle as I have 3 inch down pipe??