Thought this was worth mentioning in case anyone else experiences the same issue.   Just had a loud metallic knocking noise coming from the rear which would randomly happen when driving over bumps and it sounded just like I had a bag of tools sat in my boot. First thing I checked was to make sure my jack etc and spare wheel were secure (they were) but noise was still happening.   I very recently had some BC coilovers fitted by CS, so thought it could be the new suspension (as I know some ha