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  1. #1
    Established Member Two Rings pologk04's Avatar
    Join Date
    Sep 12 2008
    AZ Member #
    32967
    My Garage
    2001 A4 2.8Q Sport
    Location
    South Pasadena, CA

    Question Strange water noise coming from the trunk

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    Tried searching this, but came up with nothing. Every time I start my car I have a weird water noise coming from the passenger side of my trunk. The sound lasts about 5-10 seconds and sounds like water rushing through a pipe. Its pretty loud and noticeable. Any ideas on what it might be?
    2001 2.8Q Sport.

  2. #2
    Senior Member Three Rings Spykce's Avatar
    Join Date
    Aug 06 2008
    AZ Member #
    31666
    Location
    Indiana

    Re: Strange water noise coming from the trunk

    Believe it's your fuel pump. I remember reading something about the way our trunks are shaped you hear that when the car starts. I have it too, did some searching cause I was concerned about found it was nothing to worry about.
    Current Car: 2000 A4 1.8TQ Frankenturbo Build | 2012 Passat TDI
    History: C6 A6 4.2, B7 S4, Mk V GTI, Mk IV GTI Vr6, Audi 80, Audi 4000 Q, B5 A4 1.8TQ x 5, B5 A4 V6, Mk II Cabriolet x 4, B5 Passat 1.8T, Mk II Scirocco, Audi TT 1.8TQ, Mk III GTI Vr6, C5 Allroad 2.7T x 3, '86 VW Quantum Wagon

  3. #3
    Veteran Member Four Rings njm23's Avatar
    Join Date
    Feb 28 2007
    AZ Member #
    16023
    My Garage
    04 a4 USP ; ATS
    Location
    NJ

    Re: Strange water noise coming from the trunk

    it is your fuel moving in the tank. dont worry about it it is normal

  4. #4
    Established Member Two Rings
    Join Date
    Oct 07 2009
    AZ Member #
    48935
    My Garage
    2001 A4 Quattro Turbo
    Location
    Kansas City-Lawrence-Top Area

    Re: Strange water noise coming from the trunk

    it sounds stupid though, like a 93 Chevy surburban sound
    2001.5 Red A4 Quattro Turbo -- APR loaded ECU, APR R-1 Dv, Ronel 17's with 225/45 tires.
    Maintenance done: T-belt kit, front axles, fixed exhaust leak. Amsoil flush, Amsoil 5-40 Audi spec. Hitachi E.
    2001 Black Infiniti I30-fun family car that a wife loves
    2003 Black Z71 Surburban -- Tow kit, murders gas, pulls 14 foot enclosed trailer, Atv's, and extra people.

  5. #5
    Veteran Member Four Rings walky_talky20's Avatar
    Join Date
    Jun 30 2008
    AZ Member #
    30427
    Location
    Erie, Pennsylvania

    Re: Strange water noise coming from the trunk

    Mine does it too. I notice it most on warm restarts. I don't think it is anything to worry about.

  6. #6
    Established Member Two Rings A3toB5's Avatar
    Join Date
    Sep 22 2008
    AZ Member #
    33305
    My Garage
    99 A4 1.8t & 95 Golf 2.0
    Location
    Queens Get The Money

    Re: Strange water noise coming from the trunk

    Funny thing I heard that today for the first time.. lol

  7. #7
    Veteran Member Three Rings Coopa's Avatar
    Join Date
    Apr 20 2009
    AZ Member #
    41458
    My Garage
    Mk4%20variant%2C%20mk2%2C%20s60r%2C%203%27%20forester.%20
    Location
    Longmont, Co.

    Re: Strange water noise coming from the trunk

    I had no idea they were supposed to do that. And I thought mine was the only one with weird noises haha

    Now I just need to find the cricket noise coming from my dash when I turn the a/c or heat on high...hmmph.

  8. #8
    Veteran Member Four Rings Seerlah's Avatar
    Join Date
    Dec 05 2007
    AZ Member #
    23104
    Location
    A place between here and there

    Re: Strange water noise coming from the trunk

    Fuel pump. Nothing to worry about.

  9. #9
    Veteran Member Four Rings D's Avant's Avatar
    Join Date
    Oct 03 2007
    AZ Member #
    21561
    My Garage
    02 BMW 330i
    Location
    Illinois

    Re: Strange water noise coming from the trunk

    This should help explain the noise as well: http://www.audiworld.com/tech/misc8.shtml
    Current '08 A6 Avant S-Line
    Former '99 A4 Avant 1.8t

  10. #10
    Established Member Two Rings
    Join Date
    Oct 07 2009
    AZ Member #
    48935
    My Garage
    2001 A4 Quattro Turbo
    Location
    Kansas City-Lawrence-Top Area

    Re: Strange water noise coming from the trunk

    that is stupid, why can't they make a car this interesting but with the skill of japs and not have all these crazy gizmos
    2001.5 Red A4 Quattro Turbo -- APR loaded ECU, APR R-1 Dv, Ronel 17's with 225/45 tires.
    Maintenance done: T-belt kit, front axles, fixed exhaust leak. Amsoil flush, Amsoil 5-40 Audi spec. Hitachi E.
    2001 Black Infiniti I30-fun family car that a wife loves
    2003 Black Z71 Surburban -- Tow kit, murders gas, pulls 14 foot enclosed trailer, Atv's, and extra people.

  11. #11
    Veteran Member Three Rings
    Join Date
    Jan 17 2007
    AZ Member #
    14939
    My Garage
    2001 A4 1.8TQM, 2009 GSX-R 1000, 1995 Dodge Dakota Sport, 2015 FFR 818
    Location
    Seattle

    Re: Strange water noise coming from the trunk

    "crazy gizmos" that weigh more.

    About that "cricket noise", it's probably a fan motor for the heat/AC.

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