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  1. #1
    Senior Member Four Rings Widebody4.2's Avatar
    Join Date
    Jan 08 2012
    AZ Member #
    86380
    My Garage
    S6 Avant
    Location
    Central MA

    4.2 Cam chain tensioner failure

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    So 2 weeks ago I had my timing belt replaced threw a forum member. (He is a Audi tech) so iget the car back drive it for a week and it starts making a noise that I can only explain as marbles in my crankcase. Immediately have it towed to his work he double checks his work and diagnosis it as a "cam chain tensioner." so my car runs great feels normal and is very quiet. So my question is how long should I expect the other side to last. Is it a random part failure or does it have a shelf life? Thanks

  2. #2
    Veteran Member Four Rings khalimadeath's Avatar
    Join Date
    Nov 18 2009
    AZ Member #
    50945
    My Garage
    03 S6 Avant, 98 A4, Yamaha Supermoto
    Location
    Reno NV

    been there done that. Lasted about 6 months before it broke (after the light came on and it started misfiring).. 1600 to fix it. got lucky tho it didnt damage anything.
    -Zach-

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  3. #3
    Veteran Member Four Rings Stampy's Avatar
    Join Date
    Oct 02 2007
    AZ Member #
    21533
    My Garage
    A6, A8, X5, etc
    Location
    Windy City

    It's not a common part to fail. What sucks is that you need that special tool in order to do the install. Which makes the DIY aspect expensive.
    Village Idiot!!!

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    lots of rings in my garage

  4. #4
    Established Member Two Rings
    Join Date
    Dec 30 2006
    AZ Member #
    14513
    My Garage
    one atlas grey car, one daytona grey car
    Location
    Charleston, SC

    Not uncommon but also not common. They fail but not often. I would plan on getting it replaced sooner rather than later. You can drive it and wait until it starts affecting your timing and you get CEL. But, that is risky and your call.

  5. #5
    Veteran Member Four Rings G Men 08's Avatar
    Join Date
    Feb 05 2008
    AZ Member #
    24912
    My Garage
    You name it..
    Location
    Somewhere "S.A.F.E."
    Items for Sale

    Quote Originally Posted by Stampy View Post
    It's not a common part to fail. What sucks is that you need that special tool in order to do the install. Which makes the DIY aspect expensive.

    Jeff! Wow, its been a while!


    Back to topic, It is a tough call. It could last a while, it could go at any time. If you have the extra bank then I would get the part ready, and change it when you get the time during a weekend. It really is unfortunate that it is a crap shoot. Take a chance and not do it, may never fail. But on the flip side, the exact opposite can happen.
    B6 A4 3.0-sold
    C5 A6 4.2-sold
    C4 A6 2.8-sold
    B5 S4 A few mods-for sale
    MKIV Golf TDI-DD






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