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Omission light

Discussion in 'A3/S3/Sportback (8P Chassis)' started by garyg1, Dec 13, 2011.

  1. garyg1
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    garyg1 New Member

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    [Dec 13, 2011]
    Hello everyone just a quick question,my omission warning light came on,the car drives exactly the same as before,no difference stall.ive been told its the oxygen sensor.can someone tell me how many oxygen sensors an a3 2.0l fsi have and Is it a big or expense job.thanks
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  3. quattrojames
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    quattrojames Moderator Staff Member Moderator

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    [Dec 13, 2011]
    It tells you something is missing.

    Or is it the Emission light....?
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  4. garyg1
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    garyg1 New Member

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    [Dec 13, 2011]
    Yeah soz it's emition light.they say it's oxygen sensor.just wondered if big or expensive job
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  5. quattrojames
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    quattrojames Moderator Staff Member Moderator

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    I don't know where the sensor is, but assuming it's not an expensive item I wouldn't think it's too much of a job.
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  6. jb0o
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    jb0o North East Forum Moderator Regional Rep Site Sponsor VCDS Map User

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    [Dec 13, 2011]
    Haha.

    The oxygen sensors are <£100 - get on Eurocarparts and have a look. Least its not the Nox sensor as thats >£200.
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  7. Khufu
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    Khufu Active Member

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    [Dec 13, 2011]
    iirc my fsi has 6 exhaust sensors! 2 up at manifold, 2 in front of the cats and 2 after the cats. Not sure what the 2 at the manifold are for. You need to see what the scan said. Will tell you which bank and if its upstream or downstream of the cats.
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  8. NHN
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    NHN Retrofitter - Audi - VW - Skoda - Seat Site Sponsor VCDS Map User

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    [Dec 13, 2011]
    You sure its not the ignition light :jester: :undwech:
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  9. garyg1
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    garyg1 New Member

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    [Dec 13, 2011]
    Cheers for your help guys.the garage are saying its something to do with the catalytic converter not functioning so are gna sort it with new cat and gasket.saying its expensive but there doing it as only had car week
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