Thanks John, detailed and thorough description as ever! Delivery, any day now... Excuse my ignorance but if indeed the discs are to be replaced with this fix, will the hubs be changed too, i.e. are they a unit or separate? I don't want to spend time and money cleaning/painting needlessly. On another note, having driven a Q7 around for 24 hours, I am loving having the RS3 back - so much power, such a solid drive and now that the exhaust mount problem is fixed the myriad of little irritating squeaks/rattles have gone away. Happy days!