Chris NottBadger5
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  1. #1
    1st Gear

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    'Click' when lifting off the throttle

    Hi guys/gals,

    I was driving along in slow moving traffic (1st gear) with the windows down the other day. Everytime I lifted off the throttle (not touching the clutch) I got a strange 'click' sound that sounded like it was coming from beneath the car. Has anyone got any idea what this might be? It was certainly more of a 'click' than a 'clunk'.

    I can notice it more if I drive next to a wall as the sound bounces off and is easier to hear. Very strange, can't find anything on the search. Anyone else noticed anything like this?

    Thanks.
    '07 Phantom Black S3

    Superchips Bluefin Stage 1
    TTRS FBMFSW
    MY11 Rear Lights
    Auto-lights/Auto-Wipers/Auto-dimming rear view mirror/CHLH retrofit

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  3. #2
    Reverse Gear

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    Yep, I've had that before. It's intermittent really as with most clicks and rattles with my s3! Not happened for a little while though
    Last edited by Luken; 12th July 2011 at 15:00.

  4. #3
    s3ollie's Avatar
    4th Gear

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    i have this. its been there ever since I got the car. sounds like it coming from the haldex or rear diff area to me. could be cv or uj joint on the prop or drive shafts or the haldex i thought. never really investigated it further. mine also does it [click] as i re-apply the power
    8P S3

  5. #4
    paddy's Avatar
    Audi=No fault code, no idea

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    Sounds like a small amount of back lash in the drive train, probably in the prop UJ's or spline. Nothing to worry about IMHO.
    Ibis white Revo S3 and now matching Vivaro LWB HR 2900 :-)

    Many people are alive because its illegal to shoot them.

  6. #5
    1st Gear

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    Cheers for the replies. It's only on 16,000 so wouldn't of thought it could be due to wear. It might be going in to the garage again soon so will mention it to them anyway.
    '07 Phantom Black S3

    Superchips Bluefin Stage 1
    TTRS FBMFSW
    MY11 Rear Lights
    Auto-lights/Auto-Wipers/Auto-dimming rear view mirror/CHLH retrofit

  7. #6
    Reverse Gear

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    It is the exhaust, onthe backbox there is a valve that operates to close a butterfly in one of the exits it is there to improve back pressure at low speeds and open up on throttle. You will see a kind of rod which clicks. I have a brand new one and still clicks on my s3

  8. #7
    1st Gear

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    Hehe, last year i thought i was going nuts. I was the only one who could hear it and Audi Australia had no answer to it until they hoisted the car and drove it while up in the air. As mentioned above its the exhaust left outlet valve designed to reduce noise emissions in Germany when at certain throttle/speeds. Its a combination of the two so it doesnt happen if you are at a certain speed etc. thats why its intermittent. totally normal. just have a look at the exhaust tip and you will see it.

  9. #8
    1st Gear

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    Cheers guys. I did wonder if it could be exhaust related. Will have a crawl around underneath it and take a look.
    '07 Phantom Black S3

    Superchips Bluefin Stage 1
    TTRS FBMFSW
    MY11 Rear Lights
    Auto-lights/Auto-Wipers/Auto-dimming rear view mirror/CHLH retrofit

  10. #9
    3.2 Ju's Avatar
    5th Gear

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    It's a lot easier to hear from behind, my mate has the same car as me and I can here his clear as day when he drives off, likewise he can here mine when I drive off.
    S3 Sportback S-Tronic

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    2010 R36 Saloon in Biscay Blue
    2008 Red S3
    2005 A3 3.2 quattro S-line Sportback dsg Avus silver
    2005 A3 3.2 quattro Sport Sportback dsg Black


  11. #10
    paddy's Avatar
    Audi=No fault code, no idea

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    Ah thats why i didnt thik of that, mine is disconnected
    Ibis white Revo S3 and now matching Vivaro LWB HR 2900 :-)

    Many people are alive because its illegal to shoot them.

 

 

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