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    2. :
  2. Audi
    3. :
  3. A4
    4. : Replacement of the crankcase ventilation PCV valve

Audi A4 - Video tutorial

Model: Audi A4 B7 - Years 2004-2008
Part: Valve
Operation: Replacement of the crankcase ventilation PCV valve

The PCV valve (Positive Crankcase Valve) has a crankcase ventilation function; It is also known as a relief valve. There has been much talk of the defect of this valve, so much so that Audi itself has actually issued a Technical Service Bulletin declaring the constructive defect of this element and has replaced it under warranty with an updated version. The symptoms of the malfunction of this part are generally: - Fluctuations in engine revolutions with oscillations at idle that cause the engine to go up to 2000-3000 rpm without pressing the accelerator. However, the engine management control unit does not memorize any faults referring to this anomaly. Replacement is extremely simple since it is fixed to the side of the tappet cover: it is sufficient to disconnect the pipes and unscrew the fixing screws (the new gasket is also supplied with the valve).


Posted on 29 July 2023 by ScegliAuto

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