A container for the noise-muffling accommodation of a unit to be installed in a vehicle, such as an electric motor, a pneumatic pump or the like, has two container parts. Each container part is formed by a foam part and is fitted together to form a closed housing. The housing is adapted to be clipped to a vehicle bodywork for assembly on neighbouring parts of the vehicle. A U-shaped holder is partially integrated into one container part. The U-shaped holder is foamed in place. The legs of the U-shaped holder each have a clipping member on mutually opposite wall parts of the container supporting it. The clipping members extend beyond the aperture edge of the container part to clip together the two container parts. A flange projects outwardly from the container walls to secure the container in a gap in the bodywork. Each flange, on its side remote from the respective clipping member, has at least one supporting shoulder projecting laterally outwardly from the container part. The shoulder is moulded onto a spring tongue cut out of the leg of the U. The shoulder, when the container is installed, is supported on a marginal part of the bodywork gap located between the flange and the supporting shoulder.