Hi Laurens
I bought a few of these which look like they will do the job (I hope that they are the same as the one that I bought when my rectifier was hanging off - looks the same but with a different trip to the shop and a different guy rummaging around to find something to match the broken one it might be slightly different - I thought that the first one I bought was for a BMW exhaust fitting) - maybe it could help you out if you are stuck. It seems that ATU has shops in Switzerland as well as Germany.
http://www.atu.de/shop/ersatzteile/Befes...entblock_100992
