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  1. #1
    Active Member Two Rings
    Join Date
    May 29 2016
    AZ Member #
    373964
    Location
    Illinois

    Lowered A3 Occasional loud thump when turning tight @ low speed

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    I'm getting a loud thump on my lowered A3 that I'm worried is my sway bar hitting the drive shaft when I park and turn the wheel tight. It didn't do this for months but now it's a daily thing. Stock front sway bar with links and S3 springs. What would cause this?

  2. #2
    Established Member Two Rings NickBurns's Avatar
    Join Date
    Apr 04 2018
    AZ Member #
    416607
    My Garage
    2017 BMW M4 Black on Black
    Location
    Long Beach, CA

    Quote Originally Posted by Michaelp4283 View Post
    I'm getting a loud thump on my lowered A3 that I'm worried is my sway bar hitting the drive shaft when I park and turn the wheel tight. It didn't do this for months but now it's a daily thing. Stock front sway bar with links and S3 springs. What would cause this?
    Check the bushings on your everything.

    Does it happen when you go full left to full right and back?

    Also, what's the suspension setup?

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  3. #3
    Active Member Two Rings
    Join Date
    May 29 2016
    AZ Member #
    373964
    Location
    Illinois

    Stock sway bar with upgraded links. S3 springs B8 shocks

  4. #4
    Active Member Two Rings
    Join Date
    Dec 12 2017
    AZ Member #
    411094
    Location
    Texas

    Yeah tighten your links to proper torque spec.


    Sent from my iPhone using Audizine

  5. #5
    Veteran Member Four Rings MikTip's Avatar
    Join Date
    Dec 25 2004
    AZ Member #
    4604
    Location
    Earth

    Check the anti-sway bar links.

    If you have access to a drive on lift...you can get up under it and see whats going on on the lift.
    2015 S3

    2004 B6 A4 USP

  6. #6
    Active Member Two Rings
    Join Date
    May 29 2016
    AZ Member #
    373964
    Location
    Illinois

    Thank you. Is it normal to need to re-tighten after just a few months of steet driving? Or were they likely under-torqued initially?

  7. #7
    Active Member Two Rings Chaoscreature's Avatar
    Join Date
    May 26 2018
    AZ Member #
    419484
    My Garage
    2018 A3 Quattro, 1995 Porsche 993 C2, 2006 Jetta TDI
    Location
    Vista, CA

    It is normal to have to check the torque on fasteners after a couple hundred or thousand miles.



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