W126 300SE dead???

I’ve been here before and I’ve got a lot of advice – thank you for that! Because I’ve never found the old topic? So now it’s new: In the summer of 2008 it started: in the longer orgel, until the car started to work, he didn’t go at all. I changed the following parts due to tips: – spark plugs – ignition distributor lid – ignition cable – ignition coil – fuel filter – fuel pump relay (160,-!!!) Not everything at once, and after each exchange he ran again quite wonderful for a few days. The first ignition coil (90,-) was totally charred, the second one is now in it. The cable was bad, and so I hoped that this would have been the problem – thought! So now I have a giant Wut and at the same time the total Frust. What can’t be on this mill (which was a wonderful vehicle) but still my still has to be broken? The candles have to be lit up again.