THANKS for the feedback and not giving up on me!

The fuel pump was replaced very recently (5 months, 5,000 miles ago) as maintenance. before and after the pump replacement I had a "hard start" issue when engine was warm. I pulled the fuel rail and injectors - laid them on a towel, pressured the rail and watched to see if any leaked. Non leaked.

COULD it be......my "rich" Service Engine soon could be a failed regular on the fuel filter ??

Mann WK513 or Mahle KL167 is our OEM 16126754016?
(I have a Mahle Kl167 installed 5 moths 18,000 miles ago)

Thanks,
Kevin

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2004, X5, 3.0, 202k+