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  1. #1
    Active Member One Ring
    Join Date
    Feb 11 2018
    AZ Member #
    Palatine, IL

    2016 S6 Rattle with APR Stage 2

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    Hi there,

    I have a 2016 S6 with APR stage 2. There is low to mid pitched rattle that seems to be getting worse and my tech is having a hard time pinpointing the problem. Acoustically, the rattle sounds like it's coming from the area in and around the front passengers floorboard. Maybe somewhere in between the downpipes and the cat backs. I'm not sure if there is a loose valve, gasket, etc but its driving me nuts. It only happens at low rpms and when I first hit the gas. It lasts up to 7 seconds or so. As soon as the pressure builds or the parts heat up, the sound is goes away. Any thoughts? Thanks!

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

    You have posted in the C6 section and you have a C7.

    As for the issue, does sound exhaust related. As the tubing heats up and expands, it goes away. Best of luck in finding it.

    Sent from my iPhone using Audizine
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