will8855623

I have a 2003 ML500. I just got my oil change about 2 weeks ago and just started having a oil leak. I have checked the seals and plug. It seems to be coming from the upper drivers side. I have attached a pic of what I think the problem is but I am not sure. You will see a hose that I have stuck a bolt in that come up from the bottom of the car and ended where you see. I stuck a bolt in the open end so that you can see what I am talking about. IS this suppose to connect to something? HELP!!!