Yes, the car model was a small oversight. 1987 560SL. Thanks for the response. There are similar looking hoses in the same general area, and some of them have a plug in the end. But I can't tell if this one is supposed to as well. There also seems to be a tiny rigid tube, about the size of a toothpick and whitish in color, that inserts into a small branch off this larger tube that gas is dripping out of at the open end.