Hello, dear smart fans, I have a 450 Bj. 00 with only one key with this orange middle button. This button has fallen off now and I am getting restless, what happens when the key completely gives up. So I got myself a blank with board, however, the three keys have. According to the info of an acquaintance it still works (and I hope VERY, he is right). Question: Is there someone here who can cheaply learn the new key in the area of Leipzig or Altenburg (Thuringia) or in mobile proximity? Or does someone have a tip where you can go without going broke? I asked Mercedes in my emergency – they didn’t want to push out any price at all. Not a good sign… Thanks already and many greetings!