2000 A6 Quattro 2.7l turbo -Overflo
 

I drove the car today and the hose that I would of thought to be a overflow hose has no container to flow into. Whomever checked the antifreeze previously did not put the cap on tight so I lost all the antifreeze in the coolant recovery tank. The temp came back down. So I drove it to the auto parts store and when we checked it the coolant recovery tank and radiator were empty. My question is where is the hose that is hanging there suppose to go. It was leaking on the ground when I stopped somewhere or was driving.