Disk fixed

Moin. I have a problem again. Don’t come after the faults again like new ones. So since last Friday my disc doesn’t go down at the front left anymore. I thought it was frozen after the laundry but I read something here and it’s probably a well-known problem that the windowHover is jamming. When pressing on the FesterHeber the disc starts, but you notice that it does not move downwards in the area of the mirror triangle. I still hope that the window will only hang through dirt, frost and water, or that the windows will die as often as I have to deal with it. Then I would need a guide here to disassemble the door. If someone has something to hand. Or you can see that. If I still get the window down, there is the possibility to lubricate the drive through the window or you also have to disassemble the door. Greeting Martin