My e60 drained the battery overnight and next day it was impossible to start even with another car charging the battery.
The engine cranks for 10-20 turn or as long as i keep it but no firing.
it is a 530d and when I plugged inpa to it, it is showing all 6 glow plugs as open circuit which makes me think it is the controller.
the day I was testing was quite warm and it wasn't strating.
is glow plug used even in warm days ? is it possible to conclude it is impossible to start the car without them if all 6 have failed or controller has failed?
it is £129 from bmw or £60 on ebay for beru brand which is a famous brand.
Please share your thouhts.
I clear all error and as soon as I crank the engine over the 6 glow plug failures come back thus making me think it is 100% the controller but need confirmation.
I couldn't see any post suggesting they have a fuse or external relay to check.