The invention relates to an operating fluid container for a motor vehicle, said container including a container body which is assembled from at least two injection-molded shells of thermoplastic plastics material which are complementary to each other. The shells are provided in each case with integrally molded structures which extend into the free container volume in such a manner that they bring about a restriction of a fluid surge created, for instance, in the container. At least some of the structures on each of the two shells are welded together at least in part or in a punctiform manner approximately in the joining plane of the container.