I’ve got a 3 door 205 that has done 175k. Near the top of the door frame there is a groove that runs back along the car which I presume is a weld line. Since I’ve had the car there have been cracks in the seam but they have recently started to grow and the driver side one is now about 3 inches long. I’ve seen the same thing on 205s in the scrappy but never as long as mine. Has anyone else had these? Are they structural or just cracks in the paintwork?