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  1. #1
    Senior Member Two Rings
    Join Date
    Jun 05 2015
    AZ Member #
    336111
    Location
    canada

    Bunch of oil leaks 3.2 AUK

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    Okay so my 3.2 is running well, but it leaks a decent amount of oil.

    I had a relatively 2nd rate shop do new valve cover gaskets last year but I suspect they might not have used great quality ones as the leak has increased since the last time my valve covers were off.

    I also replaced my oil pan and gasket.

    I'm mostly wondering where these things commonly leak from and how to go about tracing all the leaks. Is it worthwhile to chase them down or do I just keep pouring oil into it?



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  2. #2
    Veteran Member Four Rings SinCityA6's Avatar
    Join Date
    Jul 17 2011
    AZ Member #
    78357
    My Garage
    '07 Mustang GT Tungsten Grey/Black
    Location
    Sin City, USA

    Bunch of oil leaks 3.2 AUK

    Valve cover gaskets and the timing chain covers (no gasket but RTV) are the majority of the leaks.
    If you have done the valve covers and they still leak, it is possible your covers are warped. These are plastic and can warp, especially if they are not tightened properly.
    Other possible culprits can be vacuum pump (top front of motor) or the main seal (lower rear between engine and transmission).
    Suggest you clean the motor, add some oil dye, run for a week and then check with black light.


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  3. #3
    Senior Member Two Rings
    Join Date
    Jun 05 2015
    AZ Member #
    336111
    Location
    canada

    Thank you!

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  4. #4
    Active Member One Ring
    Join Date
    Mar 30 2018
    AZ Member #
    416367
    Location
    Sweden

    Re-torquing the valve cover bolts to 9NM is worthwhile, as they are easily dislodged through vibrations and only have a low torque applied to them, which makes that more likely. There are lower gaskets on valve cover also, which might not be the ones your shop changed.

    Timing chain covers should be easy to check by reaching over the back of the engine with a gloved hand and seeing if you can find oil any place around their edge.
    2007 A6 Allroad 3.2 FSI

  5. #5
    Senior Member Two Rings
    Join Date
    Jun 05 2015
    AZ Member #
    336111
    Location
    canada

    Okay cool. Thank you guys!

    I'm taking my car in today because my tech reinstalled my manifolds and my one set of intake flaps are stuck so I'll get him to check it out at that time.

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  6. #6
    Senior Member Two Rings
    Join Date
    Jun 05 2015
    AZ Member #
    336111
    Location
    canada

    Valve cover gasket replaced, no more leaky. Thanks y'all

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