A method of manufacturing a heating device in a vehicle

A method and associated apparatus for producing a heating device having carbon nanotubes, which comprises preparing a solution of a polymer material, a solvent and a carbon additive, which comprises applying at least one layer of the solution on a substrate, attaching leifahiger elements on the layer and the coating of the includes conductive elements with protective elements, wherein the substrate material has similar properties to the polymer material of the solution. In this way, the invention provides to remove the inner heating layer consists of metalischen circuits by a layer of nanotubes is printed on the actual support of the mirror, thereby allowing a heating of the mirror with the same efficiency but without this component is achieved. The invention is equally applicable to all functions where a contact heating a surface or of a polymer material is required.