3-Series (E46, E90)Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.
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a bit of tapping is normal for a car that has sat for a while (this is dry lifter tap) if this is not the tap you are hearing, but rather a more consistant, unchanging tap it is most likely the vanos system you hear and is considered normal (unless it is unreasonably loud).
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