[daschacka]

Hi guys,
lately on my 18comp 39000km
the rpm is stuttering on idle a little bit after i drive a little bit and want to drive again on engine start.

video here:
https://www.veed.io/view/1de14060-b9...ingWidget=true

is this fuel pump ive read sometimes?

[Mtkieu]

hello i have the same problem but because no one can fix it for me so the problem getting worse. Sometime mine will turn off right away when i start it

[AHall]

Originally Posted by Mtkieu

hello i have the same problem but because no one can fix it for me so the problem getting worse. Sometime mine will turn off right away when i start it

Have you taken the car to BMW for diagnosis?

[Mtkieu]

Originally Posted by AHall

Have you taken the car to BMW for diagnosis?

I did but they said they can't find any problems with car because sometimes it doesn't happen

[ResIpsaLoquitur]

Originally Posted by Mtkieu

I did but they said they can't find any problems with car because sometimes it doesn't happen

Are you getting a CEL after this occurs? If so, once the car dies, use an OBD scanner and see what codes it shows before turning the car on again. At least you can tell your dealer/mechanic.

Others have said this to you I see, but it does sound like it could be your high pressure fuel pump; I had an issue with left side one and the car died only 1000 miles into my pre-LCI base at high speeds, and forced the car into limp mode. Replacing it prevented it from ever occurring again.

[Mtkieu]

Originally Posted by ResIpsaLoquitur

Are you getting a CEL after this occurs? If so, once the car dies, use an OBD scanner and see what codes it shows before turning the car on again. At least you can tell your dealer/mechanic.

Others have said this to you I see, but it does sound like it could be your high pressure fuel pump; I had an issue with left side one and the car died only 1000 miles into my pre-LCI base at high speeds, and forced the car into limp mode. Replacing it prevented it from ever occurring again.

No engine light show up but may i ask how much it's cost for replacing fuel pump??

[ResIpsaLoquitur]

Originally Posted by Mtkieu

No engine light show up but may i ask how much it's cost for replacing fuel pump??

I couldn't tell you for sure because mine was done under warranty; I had only had the car for a few weeks.

There are many members who are infinitely more knowledgeable than me about this. But if I am seeing the right part, a quick Google search shows the OE Bosch one between $700 and $1200 for cylinders 1 through 4. I honestly have no idea what the labor of installing this entails, but I know it took the dealer at least a few hours from start to finish.

[Mtkieu]

Originally Posted by ResIpsaLoquitur

I couldn't tell you for sure because mine was done under warranty; I had only had the car for a few weeks.

There are many members who are infinitely more knowledgeable than me about this. But if I am seeing the right part, a quick Google search shows the OE Bosch one between $700 and $1200 for cylinders 1 through 4. I honestly have no idea what the labor of installing this entails, but I know it took the dealer at least a few hours from start to finish.

Ok ty