So today the battery is fully charged again, I had to do it in my room since I don't have a power line long enough to get the charger out to the car, charging behavior was normal, there was some light gas smell the first hours when amps stayed at 5 but then amps finally went down now it shows almost zero amps, the smell is completely gone now even with the charger still connected and voltage's well over 13 V - so I think I can exclude it as being the culprit.
I started checking the car:
I got all the power fuses out, the 80A, the 60A, the 40A, the 30A, and even the 40A for the radiator, out out out. So no power fuses left. I then connected my ohmmeter to plus and minus to the battery cables of the car (the battery is still in my room). Surprise: it shows 8,5 Ohm. Ignition was off, of course (doesn't actuelly matter since all the fuses were out), and there was no power source connected to the car for about two weeks.
So I think there is a parasitic drain present, and 8,5 Ohm would correspond to 12V/8,5Ohms = 1,4 amps! So if I would connect the fully charged battery now, it would get drained fast and tomorrow it would be almost empty...
The plan is to disconnect the alternator and measuring ohms without it connected. If it's 8,5 Ohms, then it can't be the alternator...
But how? The cable is quite difficult to access, as the car is still on the roadside. Will it be enough to pull heavely on it? Or would I have to screw it off? It's a 1997 Fiat 1,4 SX.
I tried checking the cable and I squezzed my hand in but all I could feel was some plastic down there and some cable dangling. :bang:
how to get the cable off?