The first battery was already very old and I immediately assumed that it was the battery when it gradually started to start up worse. So new battery here and then worked again but gradually it started to start worse again (that’s where I stayed and had 120km away before I had to go directly to ATU and expensive new battery). So and now 3 weeks ago again a new battery, again the same game. Since I have the new one (i.e. 3 weeks) it starts again gradually and again worse. Randinfos: – Light engine was measured before and after every battery change and also today (with running engine 14,8V) – I unfortunately drive a lot of short distance (1-10km) When starting the starter spins out and it only jumps after 2-4 seconds. Maybe this is getting worse with the time until it doesn’t start at all because the starter can probably turn on the battery and after so empty it’s too often enough that it doesn’t happen again? But then maybe the reason for me to start again.