The battery in my A4 is the original one as far as I know, so just over 6 years old. After having no problems with it over the last year or so, it could barely start the car today with the meter barely above 8v. After taking it for a long run it was staying at about 12v after switching engine off, but a few hours later it's back down to under 10v now. Could the battery have suddenly died overnight or could there be another electrical problem draining it?
Thanks for any advice ...
Thanks for any advice ...