Crankcase Vent Valve

The Genuine VW/Audi 06E103547AH is a crankcase vent valve, also referred to as a PCV (Positive Crankcase Ventilation) valve. This component is integral to a vehicle's emission control system, managing pressure inside the engine's crankcase by venting gases to the intake manifold for burning. This process reduces harmful emissions and helps prevent oil contamination, ensuring proper engine performance. Failure of the PCV valve can lead to several issues, including rough idle or engine misfires due to an unbalanced air-fuel mixture. It can also cause increased oil consumption and leaks if pressure buildup forces oil out through seals and gaskets. Furthermore, a stuck or blocked valve can lead to sludge formation within the engine, potentially causing lubrication problems and long-term damage. This specific Genuine VW/Audi crankcase vent valve is designed for various Audi models equipped with the 3.0T V6 engine. It fits the following vehicles: A6 Quattro (2013-2015), A7 Quattro (2013-2015), A8 Quattro (2013-2014), Q5 (2013-2017), S4 (2014-2016), S4 (2014-2017), and SQ5 (2014-2017). There may also be unknown VIN splits for this part. It is important to note that after installation, an ECM level update at the dealership is required to ensure proper operation at lower pressures.