Secondary air pump responsible for wet air filters??

Hi! At the moment I am moving a lot on the weekends with the 850 and a big trailer on the way and wanted to clean the car again the Lufi shortly before the tour on Friday (new 10/2023). The part was soaked, it had apparently, however, water through the thick hose of the secondary air pump coming from below up into the air filter box and the part soaked. It did not really rain a lot and the car was not in the washing system before ?! The Lufi was really drip-wet, fortunately nothing worse happened. Performance was felt significantly less there,clear,with a wet filter that no longer leaves much air. Has anyone ever had this before? I have now for the return journey removed the hose and sealed the Lufi box there. Greeting,Martin