-
Jump it and see if it happens again tomorrow. If so, run a voltage test to see if anything is drawing extra current and to make sure the alternator is charging the battery. If neither of those, then probably new battery time. How old is the battery?
Double_J-
Cheers that’s a good plan, not sure on battery age - I’ve had the car a year now. Just waiting for stuff to open so I can get a jump starter/enlist a local garage.
3L so halfrauds only model won’t work, are the USB power bank style ones any good? -
When you say voltage test, is there something I can do to test if a module is pulling power it shouldn't?
Battery was near enough 14v with engine running, so alternator looks ok. Drove around for 90 mins or so and once turned off I got 12.7v.
Also ran diagnostics with a Carly and once I'd cleared all the original low-voltage errors, nothing new came up (during and after driving).
Dramatic_Hammer
BMW people, my E61 isn't doing anything electrically this morning... Won't unlock, lights don't work, radio doesn't turn on, won't turn over (obviously). I've got in via manual key and tested the battery (showing 4.6v) - this is clearly someway off 12v but I'm surprised brake lights at least don't work.
Anyway, new battery time or jumpstart/charge and see what happens? Either way I'm late for work and spending on parts & tools...