Hi - had my multi for 7 weeks and have just had the clutch done (big bucks), front spring broke after 2 weeks, now my mechanic says that the knocking noises I hear from the back are due to the bushes on the rear subframe needing done. I have looked around on the forum and there is lots to see regarding this but does anyone have the definitive answer for the source of these. My mechanic says if they can be fitted he can do it (says he has a range of various sizes of hammers) but I told him I would consult the forum for some clues for him. I await your answers. Thanks in advance.