I noticed an increasingly horrible noise coming from the mid regions of my M3W. On examination, I found multiple pop rivet failures on the lower side body below the rear exhaust mount, both in front and behind. My first question is does anyone know what size they are. On a quick look, they seem to be either large head 1/8" or standard 5/32" = 4mm. Would I be better drilling these to 4.8mm or 3/16"? I do have both sizes of rivets. My other thought would be to put a strip of double sided industrial adhesive tape between the outer body and the inner panel, as a vibration damper. I run G56 exhausts and obviously with the double flexy sections, there is quite a lot of vibration transmitted to this area of bodywork.
Wilson
