I changed my pollen filters yesterday. I noticed that the plastic frames in the bonnet are loose and clapping. That’s because of the foam tape for sealing that was rotted over the years. I’ve been annoyed for a long time by a plastic noise from this area on cobblestones. The removal of the two frames is connected with plenty of curses. The halting aisles on the back of the frames are straight behind the edge of the Mo the hood and you have to be careful that nothing breaks down. At some point it worked out. With new front cover the frames now sit tight again in the bonnet… The flapping is gone.