A turbocharger, with a turbine for expanding a first medium, a compressor for compressing a second medium utilising energy extracted in the turbine during expansion of the first medium. A turbine housing and a compressor housing are connected to a bearing housing. A casing radially and axially surrounds the turbine housing, the compressor housing, and/or the bearing housing at least in sections, which is connected to the respective housing via multiple fastening devices. At least some of the fastening devices extend through a wall of the casing into the housing include metallic damping elements made of wire on opposite sides of the wall of the casing through which the same extend.