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  1. 11-24-2016 10:36 AM #1
    blinky44
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    Hopefully stupid question...how to drain coolant

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    So, I am trying to drain my coolant to change out the thermostat. I am turning the little knob on the drain a quarter turn (it was initially pointing down) but nothing is happening. Am I doing something wrong or is there something wrong with the valve?
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  2. 11-24-2016 10:41 AM #2
    AudiTechS4
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    Oct 19 2007
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    it turns and pulls down
    2001 Audi S4 Manual - Nogaro Blue/black - Full AWE stg 3 kit w/ manifolds,h&r coilovers,jhm trans rebuild,UUC VM3 exhaust , 2.5" dp's - Needs Love - Got some love now 442awhp and 512 awtq
    2004 Audi S4 Avant manual - Silver/black - 2.7 swapped ,k24's and srm side mounts
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  3. 11-24-2016 10:49 AM #3
    KJack
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    I've never had success with the drain valve. Mine's stuck pretty tight and I don't want to break it so I just disconnect the bottom hose from the radiator. It's super easy to do. Just use a screwdriver to lift the metal wire clip, wiggle and pull it off.
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  4. 11-24-2016 10:52 AM #4
    blinky44
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    I have tried pulling as well. Had pliers on it pulling out as hard as I could as I turned it. It turns freely but does not pull out.
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  5. 11-24-2016 02:34 PM #5
    james12lucy
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    North America's only B7 Chump Car. 2006 2.0T A4, fully gutted, custom Loose Stones Racing Roll Cage,
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    Toronto Ontario

    Quote Originally Posted by blinky44 View Post
    I have tried pulling as well. Had pliers on it pulling out as hard as I could as I turned it. It turns freely but does not pull out.
    I never pull out either...


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  6. 11-24-2016 05:44 PM #6
    hemantpd1
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    I had tried it with valve, but no success as the place it very tight. I just removed the radiator hose.
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  7. 11-24-2016 06:56 PM #7
    blinky44
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    I ended up pulling the hose off as well, did not care to break that valve and have to replace it. Thanks!
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