I'm having some alternator charging issues with my Master since 1 month, today it got much worse. It is 2016 with 135k km.
Car shows up STOP and Low Battery warning, when it first started happening last month, the warning was going away after 2-3mins. Today it came up every 20-40 seconds while running, it stays on like 20 seconds and goes away, it keeps happening all the time in a loop.
Battery voltage is around 12.2-12.3V while driving. I read the Alternator values with OBD. When the warning light is on Alternator Load is 99.5% Power is 190W. When light is off Power is around 640W max, it doesn't go more than that. Its a 3000W Alternator.
I tried checking connections, it seemed ok but I don't have much exp with this. Right now I'm in a foreign country, 2 official Renault services didn't want to help and sent me away. So I depend on internet. Can I be sure its 100% faulty alternator? If yes, I will try to get a new one installed. What do you think? What would you suggest?