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  1. #1
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    replacing n75 with mbc 1.8t agu

    hey
    i bought this kit Manual Boost Controller MBC Tee Valve Kit For Audi TT A3 A4 A6 1.8T S3 S4 Turbo | eBay
    to replace the n75 valve becuase i want to limit the boost 1.4bar its 1.6 now
    the car is chipped
    now its seems easy to install but its not
    someon have any pictures or something? all i found is on the passat or a4 engines thats is different

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  3. #2
    <tuffty/>'s Avatar
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    Run it in parallel to cap boost else you will loose part throttle drivability


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    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  4. #3
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    do i replace this small part with the 3 ways with the n75?
    this the diagram the comes with the kit
    Last edited by 1.8T_; 20th August 2012 at 09:59.

  5. #4
    "Stick a V8 in it!"

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    no, the N75 says put, do it EXACTLY like the diagram shown above.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


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    but my mbc is two parts not like the one in the picture?!
    Last edited by 1.8T_; 20th August 2012 at 10:11.

  7. #6
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    Not sure what you said there...

    I am not familiar with that type of bleed valve but from the picture I would assume you use the part with the screw bit on top and hook it up as per the picture above...

    I doubt its a particularly accurate one so may take a bit of tweaking to get right (Forge UNOs is the one I would normally use) but you will need a couple of T pieces too... the supplied 'diverter T' might work as one of them but again, not something I have used so couldn't say if that part is any good..

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  8. #7
    "Stick a V8 in it!"

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    looks like a bleed valve, not an MBC.

    2000 A4 1.8T Sport Quattro Avant, Berry Pearl
    2000 A4 1.8T Sport Quattro Saloon, Black-ish
    1997 S4 - PPC £999 Challenge Track Car Build
    TD5 Land Rover Defender build


  9. #8
    <tuffty/>'s Avatar
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    Get one of these...
    Forge Motorsport | Alloy Fabrication


    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

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  11. #10
    <tuffty/>'s Avatar
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    Quote Originally Posted by 1.8T_ View Post
    That would work better than the first one but they are still pretty rubbish tbh... these types of bleed valve tend to be too coarse on adjustment...

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

 

 

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