Vauxhall Vectra 06 - Knocking - Jeffo77

I have recently brought a 2006 vectra but it seems to be knocking when i start it with the clutch staying slightly down once i turn engine off lift the clutch up its fine was wondering if this is the clutch going or something else.

Vauxhall Vectra 06 - Knocking - Snakey

Diesel? From my experiences with Vectras it could the DMF starting to fail. www.vectra-c.com has a load of useful information on it regarding this in the forums.