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Old 10-04-2012, 07:41 AM
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Mein Auto: 2004 330Ci ZHP 3 pedals
Originally Posted by totenkopf44 View Post
I read somewhere about the center support for the rear driveshaft possibly causing vibration when worn but still why would the vibration come and go every 5 seconds. Weird
Sometimes "low-tech" gives the best results. There`s a device called a "Reed Tachometer", which the technician brings along inside the car as it is driven, and the device records the specific frequency at which the vibration occurs. That reading is cross-referenced to a chart listing the various possibilities for that particular frequency.
If all else fails, you might want to seek out an old-school shop that has one of these things.
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