Originally Posted by Aussie F10M
Yep my trunk is empty. I also hear it drving over a particularly bumpy road. Not sure if it is just part of the character of an ///M car, like my grinding/groaning diff on my old E92 M3 which I understand is pretty normal.
The same grinding sound is also on my M6 rear differential, which is normal for ///M cars as is the diesel-like engine sound for S85. Maybe this F10's sound from the trunk is normal too, but it sounds way too much like a "loose instrument box or a wrench jumping around a plastic box
". That's the best way I can explain the sound
if you share the same then I'm glad that I'm not the only one and the issue (if this is an issue at all) is not isolated.
Savarona or Clar, how about you guys? Are there no speedbumps or rough roads where you live?