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DPF regeneration

Leighspain1975 Oct 1, 2018

  1. Leighspain1975

    Leighspain1975 New Member

    Hi Guys

    Little stumped on this one if anyone can help?.
    I have an A7 3.0tdi 2012.
    Really simple question. Before Dpf regeneration engine sounds like a bag of nails and runs rough. After Dpf regeneration engine is a bad of nails and runs rough. But during Dpf regeneration the car is silky smooth and responsive no clatter it basically runs perfectly.
    I pretty sure it’s regenerating because with the engine off the fans keep going.

    What’s going on here?.
    What’s happening to make this run smoother?.
    Is their a sensor bad somewhere?.

    I have no idea please help.


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