Don't want to start a new thread so apologize in reviving an old one. Just want to have folks here to consider getting genuine BMW part if budget allows it.
The original pump went out (@173K) so I replaced it with Delphi one. It says Delphi is OEM but unfortunately, mine only lasted 39K miles (@212K). Car broke down and have it towed back to my house.
Few things to add
- Never had the gas tank below 1/4
- traveled 90 miles to/from work (all highways)
- replaced fuel filter with Delphi fuel pump
- got 54psi pressure on the rail
Overall, my experienced with aftermarket parts were pretty good but learned my lesson when it comes to parts that will leave me stranded on the side of the road. Mind you that this fuel pump problem abruptly happened with no warning . . . car stuttered, pull up to side of the road, car died and would not start.
I should be getting the new Genuine BMW part sometime next week. Got the new pump from the company that provides the lifetime warranty.
This is just my experience with Delphi. Others might have better luck but with the amount of miles I do, maybe fuel pump is not up to the task.
Car: 2001 BMW X5 3.0i w/manual transmission