Does anyone have in information on the hardware for the rear flip down seat on the 2013's. We bought a used z3 and they pervious owner said they screwed the seat down because it flipped over to easily. Well after taking the screws out we see they screwed it down because the hinge system was broken. I'm looking for parts or even sized to machine my own parts to get it working again. Ill attach a couple pictures. Thank you in advance. #TigeLove