Hey there,
The battery light on my Astra 1995 is misbehaving, although it does appear to be showing a real problem.
It started by lighting up during normal driving. However, the more I revved the engine, the brighter it became. About 15 minutes later, it went off again. Ok. Fine.
When I arrived home and turned the ignition off, the the battery light went on again. I tried to turn the ignition on again and the light went out; ignition off and the light went back on. I left the car off for about half an hour and the battery went completely flat.
With the help of a jump starter I was able to start the engine, but the same behaviour continued afterwards.
I am taking the poor thing to a garage this Saturday but would like some ideas before. I want to get there with a minimal idea of what might be going on.
My first thought is the alternator, but since I had just had some work done on the engine before the problem, I am thinking it could be something related to the engine earth? Excuse my ignorance if this makes no sense.
Any feedback is much appreciated.
Thanks, Luiz