I bought a roof support from Ford for my Focus II (3-door, built in 2007) and wanted to fix it today. The instructions say that before the first installation at the mounting points on the roof you have to remove the sealing mass in the area of the threaded holes at the front and back. I removed the slip-off plates, but underneath there are no threaded holes, any dimming material that covers the roof, I can’t see. Ford has there at the Focus over the last year. I can’t screw the bolts with the roof.