When you can not hear the pumps it does not start. Turn it on and off 5-10-15 times and then adventure my u hear the pump prime and then I know it’s going to start. As soon as you turn the key (position 2)the fuel injector warning comes up and the pump does not activate, it is instant. Likewise position 2 and then the pump sounds ( and no warning ) it starts.

__________________
2006 x5 3.0d