Hi, I've got a 1997 E320 and the check engine light comes on and i check the codes and it says that it's code P0455, which means a large leak in the evap system. At first i thought it might be the gas cap because when ever i'd be near my gas door i'd smell gas fumes. I went and replaced the gas cap and that didn't solve my problem, now next to the gas cap inside the gas door is a little hole with a rubber ring around it that leaks fuel out of it??? I don't know where that line leads to or if that could be my problem. Right now i'm waiting for a new vaccum pump to come in to test the purge line that goes from the Purge Control Valve to my Charcoal Canister. Does anyone know anything about what it might be with fuel leaking out on to the side of the car??? Thanks