A turbocharger comprising a cartridge which is arranged in a turbine casing for variable turbine geometry; a bearing housing which is arranged between the turbine casing and a compressor housing of a compressor impeller and in which a bearing assembly is arranged for a shaft which supports the turbine wheel and the compressor impeller; and a spring washer which is arranged between the cartridge and the bearing housing, the spring washer being composed of at least two material layers.