Abstract: A method for production of an interior unit for a motor vehicle includes production of a support by injection molding, featuring an enclosed front side, wherein at a backside of the support a screw boss is formed whose drill hole is sealed by a support section in the direction of the front side of the support, which support section features a reduced wall thickness in comparison to the remainder of the support, and production of a foam layer on the enclosed front side of the support. Furthermore, the present disclosure relates to an interior unit for a motor vehicle.