The Positive Crankcase Ventilation system on your Audi B5 is integral to the engine's ability to manage blow-by gasses and maintain emissions control.

The two-stage pressure relief valve channels air to the intake manifold and turbocharger while separating oil from the system.

Symptoms of a problematic PCV system are rough idling, misfires, and general poor performance.

ECS has assembled a complete PCV refresh kit for your Audi, including a PCV breather tube, Pressure Relief Valve, and new gaskets and hardware.


Stay Green

Click HERE to order or for more information


Fits: Audi
B5 A4 30V (1997-2001)

Let me know if you have any questions.

Jason