What is this dreadful noise (N46 cold start)

Discussion in 'Faults, Fixes and Solutions' started by CitizenKan, May 13, 2019.

  1. 13 May 2019 at 11:02 PM #1

    CitizenKan A mere Chipper

    Jul 7, 2017
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    2006 BMW 318Ci
    Hi all,

    Sorry for posting a non-M thread, but I am struggling to find another forum with as active a user base as this so thought I’d post it here anyway. Hope that’s ok!

    This is a clip of my 2006 318Ci (N46) starting up cold. It doesn’t make the noise on a warm startup. It also has a tendency to idle fairly rough when cold, but I’m not sure it’s related.

    Anyone have any idea what this might be?

    Last edited: May 14, 2019

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