Chris NottJMB Retrofits
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  1. #1
    jbh
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    AFN TDi vac pipes recomendations

    right im planning on replacing all the vac pipes on both the avants and the leak off pipes.
    now Ive seen folk using the silicon ones wheres the best place to get them and what exactly do I need.
    1997 A4 Avant 110 TDi quattro
    1996 A4 Avant 110 TDi breaking

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  3. #2
    Sulli79's Avatar
    2nd Gear

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    1999 1.8TQS Saloon in Black/Dirt
    1999 1.8TQS Saloon in Silver Breaking

  4. #3
    jbh
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    that ones for the 1.8t not sure if the 1.9 tdi would be the same.
    1997 A4 Avant 110 TDi quattro
    1996 A4 Avant 110 TDi breaking

  5. #4
    Biodiesel Purrrr

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    kit looks expensive for a bit of tubing...
    I just bought 2m of 4mm internal diameter silicone for about £4.50.
    the plastic connectors and T-pices in the kit should alreadt be in the engine bay on the old tubing, it is unlikely they would be degraded.

    test the black and white one-way-valve or check-valve that is between the vacuum accumulator ball and the tube that links to the EGR control solenoid.
    it should hold vacuum when applied to white end but allow air through if vacuum is on black end.
    (I did this by sucking on it but not recommended as it may have oil etc inside it - shouldn't but you never know)
    I still had vacuum loss in the system after replacing old tubing,
    my check-valve was allowing air through in both directions.
    Part is 046 905 291 A - £15.30

    Check connection of tubing to the previously mentioned ball.
    there could be vacuum loss there
    TDi Biodiesel sippin' A4 Avant - EGR blanked
    "Cars are good but Jeremy Clarkson is a dick."



  6. #5
    ScottD3's Avatar
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    The black silicone hoses are fine off eBay.
    I've been using them for months now with no issues.
    There no need to replace the plastic bits unless you snapped them.

    New Car, New Thread: Scott's Akoya Silver A8
    Gone But Not Forgotten: Audrey's Build Thread

 

 

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