Moinsen, so, today one of the acquaintances noticed that my left rear light, i.e. the part that you can retrofit from the B4 Avant so nicely in red, is about 4 cm high under water. Was shortly before in the washing system. He only said “drill in a few drain holes down there” which I don’t quite like yet. GIBt ́s another trick? So again is not removed, then it will certainly leak back in. Can you just drill with a 3 drill bit carefully pure Then the Plexiglas bursts or does it burst? Thank you and greeting Markus