Door adjustment at Megane CC II

Dear experts, the driver’s door of my MEGANE CC BJ 2004 is down by 3-4 mm (probably stiffness problem of a convertible). This can be seen on the window rubber, which is deeper than the rubber of the rear side part. As a result, the window pane is no longer at the very top and raindrops come in and the wind whistles at higher speed. Can you adjust the door, or do you have to bend the body back?