I recently bought a 2018 M550i xdrive in great shape, 40k kms fully maintained (from family member so i know its history). Noticed a weird vibration/knock when idling after turning on engine. Over a minute or two, i feel it maybe twice.

Is this normal and part of the warm-up? Or something to be looked into?

  • i7solarB
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    1 year ago

    Look into it, a knock isn’t normal.