A method for producing an absorbing sound insulation motor vehicle trim element comprising a four-layer structure made from a first foam layer , a second foam layer , a non-woven foam layer , and a non-woven fabric layer includes the steps of: I) providing a non-woven fabric layer having the thickness d; II) compressing the non-woven fabric layer to a compressed thickness d'; III) foaming the second foam on a top surface of said compressed non-woven fabric layer by means of a first shaping foam half mold, wherein said second foam will diffuse into said non-woven fabric layer at least partially to form an intermediate layer, namely a layer with increased density , wherein said intermediate layer consisting of a partial thickness of the non-woven fabric layer and the second foam ; IV) foaming the first foam on the top surface of the second foam remote from the non-woven fabric, wherein an outer surface structure is formed on the first foam on the surface of the first foam remote from the second foam; wherein during the foaming in step III) and/or IV), the formation/preparation of a rib, blister, projection and/or indentation surface structure is effected on the side of the respective foam remote from the respective non-woven fabric; and wherein the foam layers have different densities, loss factors and/or modules of elasticity; and the non-woven fabric layer has a mass per unit area from 400 g/m2 to 1800 g/m2, and the layer with increased density has a mass per unit area from 300 g/m2 to 1500 g/m2. I) providing a non-woven fabric layer having the thickness d; II) compressing the non-woven fabric layer to a compressed thickness d'; III) foaming the second foam on a top surface of said compressed non-woven fabric layer by means of a first shaping foam half mold, wherein said second foam will diffuse into said non-woven fabric layer at least partially to form an intermediate layer, namely a layer with increased density , wherein said intermediate layer consisting of a partial thickness of the non-woven fabric layer and the second foam ; IV) foaming the first foam on the top surface of the second foam remote from the non-woven fabric, wherein an outer surface structure is formed on the first foam on the surface of the first foam remote from the second foam; wherein during the foaming in step III) and/or IV), the formation/preparation of a rib, blister, projection and/or indentation surface structure is effected on the side of the respective foam remote from the respective non-woven fabric; and wherein the foam layers have different densities, loss factors and/or modules of elasticity; and the non-woven fabric layer has a mass per unit area from 400 g/m2 to 1800 g/m2, and the layer with increased density has a mass per unit area from 300 g/m2 to 1500 g/m2. during the foaming in step III) and/or IV), the formation/preparation of a rib, blister, projection and/or indentation surface structure is effected on the side of the respective foam remote from the respective non-woven fabric; and wherein the foam layers have different densities, loss factors and/or modules of elasticity; and the non-woven fabric layer has a mass per unit area from 400 g/m2 to 1800 g/m2, and the layer with increased density has a mass per unit area from 300 g/m2 to 1500 g/m2. <EOS>