Hi @all. My wife’s Clio 4 (2013) is getting me pretty slow.. I have always stored the error connection unit passenger cell error DTC9520 (DTC952014) – start relays – open circuit or ground closure – sporadic. It can be deleted, but comes again at the next start… – battery is older (2.5 years) but according to Tester still a good performance – fuse box is dry and all fuses are OK – light engine starts after about 10 seconds charging and after 30-60 seconds constant to 13.7 volts – mass point battery -> Gearbox also looks good Does anyone have an idea what might be without renewing the complete electrics? LG Christian