Hello everyone, I'm a new member! Can anyone please help me with the problem with my 2000 BMW E39 528i that doesn't start? The engine cranks, but doesn't start. It just happened all of a sudden. There were no repairs or anything done other than adding oil a couple days previously. It ran one day and the next it wouldn't start. I checked the fuel pump fuse and relay, and I believe it's ok. I could hear something humming when I place the ignition to ON, but I could be hearing something else. I looked at 1 spark plug to check if it's fouled up, but it looked dry. Lastly, I sprayed starting fluid/ether into one of the intake (main) and surprisingly it started for a second or two. This leads me to believe it's more than likely a fuel issue...any thoughts or advise would be greatly appreciated. Thank you!