Not off to the best of starts, lol, froze my door shut yesterday (car wash the day before doh) and after opening it wouldn't close anymore. Eventually got it to lock again after liberal use of de-icer.
Yesterday all was well, but this morning is the first cold day -15C on the dash display. Engine turned over a lot slower than usual and battery volts were down to ~11 and the red batt light was on. So that's the battery due for very urgent replacement.
What worries me though is that after a short trip driving the gf to work, volts did not rise but stayed around 11, then just when I was reaching home they were down to 10 ish and while parking the ABS and traction lights went on as well so things were running very low on power.
Interestingly I remember having the exact same happen on my volvo once, the first thing that malfunctioned at low volts was the ABS controller.
So I'm confused now, I would have expected the alternator to recover the battery slightly but it seems it was only going downhill. The volt gauge was never below 14 at all times before including last night so it'd be strange if both the battery and alternator call it quits at the same time? Or is the failing batt dragging it all down? I'd expect the car to be able to keep running normally with or without battery with a normally working alternator
Will hook up VCDS, are there any codes for alternator output?