EM TuningChris Nott
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  1. #1
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    n249 location asap

    2005 A3 2.0 T fsi quattro
    symptoms - emissions light , turbo chatter noise.
    vagcom - N249 mechanical malfunction

    As above, can anyone tell me where the N249 is? also, any other ideas as to what could be wrong?

    Thanks

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  3. #2
    Lewis583's Avatar
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    Number 23 on there mate.
    2008 E92 BMW 335i M-sport
    1990 Golf GTi w/ a 20v heart BUILD THREAD
    Full VCDS

    2006 A3 2.0T quattro S-line R.I.P. You will be missed.

    ** Breaking - 8L 1997 Audi A3 1.8T. **

  4. #3
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    Cheers mate, so it's attached to the turbo. Does that mean I access it from underneath then?
    Would this cause the chatter noise also? Thanks

  5. #4
    audicruiser's Avatar
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    Yes, it's normally referred to as the Diverter Valve. You will have a rubber Rev C on your car I expect which will have split. Audi released the Rev D type which is a piston and don't fail. They are around £50 and take 20 mins to change.... Your car will then have it's full boost back and no noise....

    You do get to it from underneath.
    Scott

    Audi A3 Sportback 2.0T Quattro S-Line 2007 8P2
    Lava Grey, Exclusive Line Black/Silver Leather, Heated Seats, Bose, RNS-e, iPod, Auto Lights & Wipers, Interior Light Pack

  6. #5
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    So that's a diverter valve. An old receipt from previous owner is for a forge diverter valve? Does this change anything?

  7. #6
    audicruiser's Avatar
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    Quote Originally Posted by Leon tfsi View Post
    So that's a diverter valve. An old receipt from previous owner is for a forge diverter valve? Does this change anything?
    Depends if he left it on the car... A receipt is one thing... A forge DV on the car is another!!
    Scott

    Audi A3 Sportback 2.0T Quattro S-Line 2007 8P2
    Lava Grey, Exclusive Line Black/Silver Leather, Heated Seats, Bose, RNS-e, iPod, Auto Lights & Wipers, Interior Light Pack

  8. #7
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    Is there any way of knowing without looking? There is a strange thin black pipe coming off a junction near the evap sensor then ziptied along the front of the engine from right to left and then goes off down to the left of the engine somewhere? It's obviously not standard so I assumed it must be something to do with the forge dv on the receipt? Any ideas?

  9. #8
    audicruiser's Avatar
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    Quote Originally Posted by Leon tfsi View Post
    Is there any way of knowing without looking? There is a strange thin black pipe coming off a junction near the evap sensor then ziptied along the front of the engine from right to left and then goes off down to the left of the engine somewhere? It's obviously not standard so I assumed it must be something to do with the forge dv on the receipt? Any ideas?
    Not really, you will have to see it to know which is fitted.
    Scott

    Audi A3 Sportback 2.0T Quattro S-Line 2007 8P2
    Lava Grey, Exclusive Line Black/Silver Leather, Heated Seats, Bose, RNS-e, iPod, Auto Lights & Wipers, Interior Light Pack

 

 

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