Hi, I have had my Z4 Coupe for nearly a year but noticed that the sill on the driver side is a bit loose so not flush with the bottom of the door but sticks out a bit. I can pull it out and see inside so I am assuming that some of the clips have broken. It is still secure but would be good to get it fixed. I am a bit worried that it has been taken off and not put back on properly. Does anyone know what I need to do and how easy it is to fix? Thanks.