Hello, since then I have a problem with my B4. if I do the light switch once to the top on both sides stand light, if I now turn on ignition and set it on dipped light, on the driver side the stand light almost goes off and the H4 light bulb very weakly on. in the tacho lights up also very weakly the main light light, if I take out the H4 lamp, the stand light also goes off and if I also only the plug from the light range regulation b ewege, then he starts to work and becomes more and more slow and difficult, because he can’t put more than when he’s always close to it, he sounds. What can that be? Backups I’ve already looked thanks, mfg