A fuel tank for a motor vehicle and a vent unit for the fuel tank incorporate interchangeable components to facilitate and reduce the costs of repair and maintenance. This is achieved by an arrangement of components in which the fuel tank comprises at least one fuel filling opening, at least on e fuel delivery pump, at least one operational vent means and at least one refuelin g vent valve. The vent means and vent valve are connected to a fuel vapor filt er by way of at least one vent conduit. At least one bead removal container is connected on the upstream side of the fuel vapor filter. At least the bead removal container and the refueling vent valve are combined to form a functional unit in the form of a vent unit adapted to fit into an opening through the wall of the tank.
