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Noisy hydraulic tappets - can an oil change fix the problem?

Discussion in 'A6/S6/Allroad forum (C5 Chassis)' started by myth, Feb 1, 2014.

  1. myth
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    myth Member

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    [Feb 1, 2014]
    I currently have a 2.5TDI AFB with 300 000 km on board and I use 15w-40 Mobil oil. Sometimes I can hear the tappets clicking, but as far as I'm concerned it's quite random.

    Can an oil change fix my problem? Should I put thicker or thinner oil?
    #1
  2. myth
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    myth Member

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    [Feb 6, 2014]
    Anyone?
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