[tomtom11]

hello, i replaced my car battery and lpfp and still have a long startup from time to time. sometimes it seems to start right up, other times it takes about 6 seconds before actually starting up. what else could be the problem? thank you

[straightcashhomie]

Hpfp

[007_e350]

Hpfp, also covered by bmw to a certain mileage

[Jklad]

I experienced this for over a year with no codes thrown. Finally threw a code that linked to hpfp, replaced it and starts right up, only 2-3 cranks now.

[Fundguy1]

HPFP. I'm on #6. Bet your battery and LPFP were fine.

[tomtom11]

Thank you everybody for the replies. I was under the impression that when the hpfp is dying upon startup the rpm needle moves erratically, I don't have that at all. Once the car starts up it is perfectly fine

[CWarrior]

Check your coils, have you thrown any codes? I have done more than one HPFP, and most recently ended up having one bad coil, and I checked codes right after start it had a "intermittent camshaft position sensor". Solved by replacing one coil. It would long start randomly, but always start.

[tomtom11]

i have no codes and i have no misfires so i dont think any of my coils are bad. I also just got all my spark plugs changed as well.

[Jeff@TopGearSolutions]

Originally Posted by tomtom11

Thank you everybody for the replies. I was under the impression that when the hpfp is dying upon startup the rpm needle moves erratically, I don't have that at all. Once the car starts up it is perfectly fine

The rpm needles do not need to move erratically for the HPFP to be failing.

[mike@x-ph.com]

As mentioned above it is most probably the HPFP
If you are having the long crank only at cold start , it could be injector failing.

[BlackBB6]

Originally Posted by mike@x-ph.com

If you are having the long crank only at cold start , it could be injector failing.

That was the case for me, if it is the injector and it's leaking your oil could be contaminated as well.

[este]

Originally Posted by BlackBB6

That was the case for me, if it is the injector and it's leaking your oil could be contaminated as well.

would this throw a code?

[BlackBB6]

Originally Posted by este

would this throw a code?

No, the car ran relatively strong too, much stronger with new plugs and injectors though. First dealership gave me the no codes = no problem diagnosis, had to go to another dealership and they replaced both banks (1 leaky injector in each bank) under warranty.