I’m about to do this. My M3 is t turning over and I think it’s either the fuel pump or relay. It wants to crank but doesn’t get fuel to completely turn over.
Get starter fluid and spray in the intake while someone cranks it. It should start up and die. Also look in the interior fuse panel in the glove compartment. Fuse 54 should be a 20A fuse. It's for the fuel pump. Pull it and see if it's blown. Replace it and see of the engine cranks. It should but it will blow again within minutes of driving so don't drive anywhere. Those are just a couple ways to verify it's the pump before doing the work to replace it.
I’m about to do this. My M3 is t turning over and I think it’s either the fuel pump or relay. It wants to crank but doesn’t get fuel to completely turn over.
Get starter fluid and spray in the intake while someone cranks it. It should start up and die. Also look in the interior fuse panel in the glove compartment. Fuse 54 should be a 20A fuse. It's for the fuel pump. Pull it and see if it's blown. Replace it and see of the engine cranks. It should but it will blow again within minutes of driving so don't drive anywhere. Those are just a couple ways to verify it's the pump before doing the work to replace it.