Right guys got a wierd fault on my Signum 1.9 150. Car died earlier so jump started it. It started fine but then driving down the road and everything started to go off until eventually driving along with headlamps flashing. Got home charge the battery for 3.5hrs and now seems fine , except there is no change in voltage where the cars running to when its off (12.2V). Now if it was the alternator I would have expected the battery light to be illuminating reporting an issue.
Am I missing something here? normally when cars running I would expect upwards of 14V and car off 12.5 ish.
So question is is it the alternator without the battery light being on or something else?