Originally Posted by tabetha

Very common for the rubber bumps to wear each side where the tailgate closes onto, temporarily pack these out by stuffing a rag on top of each one and closing the tailgate, go for a drive if noise gone, take off each bump by drilling rivetts out, make a 3mm-5mm backing part same shape from ply etc then rivett back on job done, did this to my 4i for 100% cure.
tabetha