Got home today and noticed something was hanging out the bonnet over the ns wing, i opened the bonnet and this peice of metal dropped out. Ive got no idea what it is or how it got there. Its some sort of metal graphite like a motor brush but too big. Its approx 40mm x 40mm x 7mm. I can understand how it got where it was unless it came from the car. Any ideas.

No idea, initially I thought the foam pads at that a rear before reading your post. Somebody will be along soon. Perhaps beneficial if you put up what RRS you have. 2006 2.7 TDV6 HSE in Cairns Blue.