Punto 176 starts worse and worse, now no longer

Hello! I have the following problem: Since the winter the Punto (my wife’s favorite) started worse and worse. The longer he stood (e.g. weekend ) the longer you had to org. Now he stood for a week and it’s not much more besides loud Georgele. Battery was completely empty, but also charged helped nothing. ADAC was there, candle out against mass… No spark at the start attempt. Previously he had noticed that he ran restless, especially when he was cold. Was with Fiat and the Diag showed a The Lambda I wanted to order now, but normally it should also start without Lambda, I think, right? First attempts: A ignition cable snapped on, changed, does not help anything. Since the similar bug descriptions in the net say that the Punto 176 likes to give up the ignition coils, I was with the scrap today and found some that already look changed, so newer than the car around it. For a 20s kan n do not harm the attempt: exchanged, does not help anything. Now I am a bit perplexed, especially since my ‘Now I help myself’ book has not reappeared after the move. Can someone give me a few search ways, how I can come to a solution? Unfortunately I only have almost everything there for the electrical part, so from the multimeter to the oszi. Mechanic measuring means so compression or similar missing. Would be really grateful for a help! Greeting, Astralix