low pressure fuel pump...intermittent

[bmwdirtracer]

Of course not, my friend....you're a racer....we take responsibility for our decisions, n'est ce pas? My point was that the shop has been honest and straightforward, and has been trying to save the OP spending more than necessary. I do the same, for my customers, as does every honest pro, in any line of work.

Modern cars are rolling computers, and we all need to use computers, to diagnose them. If the computers are wrong, then, USUALLY, we are also wrong. Every now and then, a good tech will have a hunch, based on experience, which leads him (her) to look past the computer's diagnosis.

We live in a "politically correct" world. Maybe that shop's tech "felt" the same hunch that I have.....but he's got to follow the computer's information, hunch or not....or somebody's going to threaten to take him to court. If he goes to court, well, he's going to need to have followed the prescribed ritual. This shop did that.

[craig3x]

OP did not replace the recommended sensor. Of course, when a low pressure fuel pump fails, it often kills the HPFP, which, by the way, sometimes kills the injectors.

By all means, take them to court! You don't have a leg to stand on. The shop had proof of a bad LPFP (the code and the pressure test). So they have proof that they recommended the correct part....except of course that the OP did not follow all of their recommendation. And of course, it's not the shop's fault if the old, dying LPFP killed the HPFP during its death throes.

{EDIT: Personally, as I said, I'd have tested with ISTA, which most independent shops don't have. I have a suspicion that the Fuel pump control module is the real culprit, because of the voltage codes....but hey, I'm just a tech, and I'm wrong a lot....just like everyone else. That's why we do what tests we can, and follow the best answer available, to serve the customer. Probably better to just go the safe route, and ask for the entire system....}

why would I replace a part that tests fine? The sensor was testing fine. They only recommended replacing it because in the future it could possibly fail. Well that's a $500 job and if it's testing fine, then that's just throwing money away.

[bmwdirtracer]

READ THE SERVICE BULLETIN:

2. If any of the following low-pressure sensor fault codes (29F3, 2A2D, 119201, 119202, 11A201, 11A202, 11B211) are stored in the DME, replace the low-pressure fuel sensor. Follow Repair Instruction REP 13 53 594. Clear the fault memory and continue to step 6.

[FRANK12]

NEW PROBLEM YOU mention "sucking jet pump. where is this located on 2007 525I (e60)

[MIKYZZ4]

FRANK12,
It's preferred and recommended for you to start your own thread.

[bmwdirtracer]

+1.

Welcome to the forum, Frank.
The thread you tacked onto has really nothing to do with your issue. You need to start your own thread. It's easy, and we'll be glad to assist.