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Thread: The "S" button - coding question

  1. #1
    Mr_Freeze's Avatar
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    The "S" button - coding question

    Ok guys, this ones for you clever coding peeps.

    Is there any way you can recode the "S" button so that it defaults to on and then you have to press to turn off?

    I think i would prefer it that way round if it can be done.

    Also is the exhaust valve powered open or is it powered closed, just in case it can't be coded, wondered if there were any other ways of doing this?

    One of 750 RS3, Ibis White, Buckets, Privacy glass, Black styling, Cruise control, Bose, Scorpion Cat Back Non-Resonated exhaust system.

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  3. #2
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    Simple answers no.

    On the R32's, TTRS etc there was a mod which involved removing the suction hose which opens the exhaust flap (actuator)

    May be possible to have the exhaust flap open all the time but when I was last under the car I don't think it's the same setup.... I'll double check
    RS4 Gone.... RS3 as the replacement

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    klauster's Avatar
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    Doesn't it sharpen throttle response as well?
    www.SubZerosystems.co.uk - IT Consultancy

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    'S' Button engaged....

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    ha ha ha.... before I even reach the end of my drive.......
    . push the 'S' button
    . push the traction to 'Sport
    . select 'S' in the DSG box (unless I've woke up + select manual)
    and off we go, great shout though; this set up should be default
    With great power comes great responsibility.......

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    Quote Originally Posted by klauster View Post
    Doesn't it sharpen throttle response as well?
    I thought so, All the vacum pipe removal will do is make the car sound like it does in 'S' but all the time.
    RS4 Gone.... RS3 as the replacement

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    Right ive had a look under the car, Its the same as other VAG marques with the pump activated actuator.

    If you wish to have your car like its in Sport all the time just pull off the rubber pipe from the actuator valve and plug it with a screw, then cable tie it up out of the way.
    Mr_Freeze likes this.
    RS4 Gone.... RS3 as the replacement

  8. #7
    RYes3's Avatar
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    I have noticed that when on choke, the S button does nothing until it comes off choke. It then opens. I think it is forced closed so that would mean that if there were any timing/throttle response changes disconnection the pipe to leave it open may be a bad idea?
    2012 RS3 Ibis White | Black Styling Pack | Black Roof Rails | Bose | Cruise | Tyre Package | Privacy Glass

  9. #8
    P_G
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    Same thing happens on the RS4's, sport mode didn't open the exhaust flaps until after initial 30 second warm up phase. Those that disconnected / plugged their exhaust flaps didn't have any issues with the warm up phase by doing that.

  10. #9
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    Its probably to stop people ragging it when cold.
    2008 A3 1.8t FSI Sportback S-Line - Avus Silver - Full spec.

 

 

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