The invention relates to a door module (2) for a vehicle door, which is divided in a sealed manner into an outer wet chamber (44) that faces the door shell (1) and an inner dry chamber (43). Said door module is equipped with pre-assembled mechanical and/or electrical functional components that are fixed in the dry chamber and can be mechanically and/or electrically connected to door components that are located in the wet chamber. The seal between the dry chamber and the wet chamber is formed by a separation sheet (12), which is penetrated by sealed connecting elements of the functional components that are held on the dry side of said separation sheet in the door module. According to the invention, the decorative inner covering (3) of the door module (2) and/or a reinforcement element (20) that is mounted on said covering in the door module comprise contact pressure zones, which preferably extend over the whole periphery and onto which the separation sheet can be pressed in a sealing manner, by contact with the door shell.