2000 BMW 528

Engine Performance problem
2000 BMW 528 6 cyl Two Wheel Drive Automatic 138000 miles


When I turn on my car engine in the morning, I will always hear some weird sound that I guess the engine is not running smoothly.
And then the engine just turn off by itself.
And after that, when I turn it on again, there is no problem with that for the rest of the day.

I just bought this car a month ago, and I have done the engine service for my car, I remember they replaced six little small thing in the cyl, however, this problem still happens in the moring.
Can you tell me what I can do?

Thank you
January 27, 2010.

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