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Light grey / blue tint of smoke coming from my exhaust why?:(

Discussion in 'A3/S3/Sportback (8P Chassis)' started by dubindan, Sep 9, 2012.

  1. dubindan
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    dubindan Member

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    [Sep 9, 2012]
    Okay so I have got a 140bhp a3 tdi it's done 50,000 I had it remapped last Christmas the last few days I've noticed a greyish blue smoke Comeing from the exhaust it doesn't do it if you sit still and rev it but does when you accelerate gently it lets a cloud out randomly it doesn't mater if it's hot or cold you can be driveing for 5 mins until it randomly does it or just taking off it just doesn't make sense can anyone help before I take it to Audi tomorrow thanks dan
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  3. Cossie_boy
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    Cossie_boy Member

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    [Sep 10, 2012]
    I would not worry, ive had about 4 TDi cars which I had mapped and they all had the odd puff of that colour here and there.

    Some diesels do it standard also
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  4. dubindan
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    dubindan Member

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    [Sep 11, 2012]
    I've had It mapped a year now though and never noticed it until this week black smoke I understand with it mapped but it's just how it randomly does it and let's a good amount that when you look back in the mirror thes a cloud of it there I've also been to a vag specialist who's told me the turbo is leaking oil through into the exhaust ? Which is what is causin the smoke when it hits the inside of the exhaust
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  5. mjr901
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    mjr901 Parts Manager - (Main Dealer)

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    [Sep 11, 2012]
    No smoke no poke!!!

    I used to have a dturbo 306 years ago. need I say more? :)
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  6. Sidhu88
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    Sidhu88 Active Member

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    [Sep 11, 2012]
    f**k me u must be old


    I get the odd puff of blue smoke on start up, clears away after a quick rev, and from time to time i get smoke clouds under acceleration too.
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  7. dubindan
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    dubindan Member

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    [Sep 11, 2012]
    I just found it odd because never noticed it before until my friends started to comment on it then it's started to bug me don't want it to knacker my cat up
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  8. bmh.01
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    bmh.01 Member

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    [Sep 11, 2012]
    Light grey/blue would indicate burning oil rather than usual black diesel soot. Most likely from the turbo.
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  9. dubindan
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    dubindan Member

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    [Sep 12, 2012]
    Even though it's only done 48000 I was expecting it to last a lot longer then that tbh I have had few Peaple that have this problem with there vauxhalls and they said valve stem seals is this a common fault on the Audi too ? Thanks dan
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