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5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

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Old 03-29-2005, 04:07 AM   #1 (permalink)
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ben_t is an unknown quantity at this point
This has only begun to occurr very recently.
There is a feint flapping sound coming from the engine area when travelling at high speeds (100+ km/h) on the highway. It's so feint that I have to turn the radio down to hear it.
It occurs at random intervals and gradually increases over the journey (2.5 hrs on the highway).
I had the problem of poor acceleration yesterday, but today the acceleration was fine.
Could this be pinging?
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Old 03-29-2005, 09:16 PM   #2 (permalink)
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bgwoody is an unknown quantity at this point
Check the plastic shields under the drivers and passengers side of the car. Speed bumps will tear them. It almost sounds like a tire problem.
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