Thumbnail Filmstrip of Audi Genuine Engine Crankcase Vent Valve - 06H103495AK Images
Located on top of the cylinder head valve cover, this part separates engine oil from gases inside the crankcase. It routes unburnt blow-by gases back into the engine's intake manifold to be safely burned during combustion, controlling vehicle emissions and managing internal engine pressure.
Key Specifications & Fitment
Common Symptoms of Failure: A faulty or cracked valve often triggers a rough idle, loss of boost pressure, decreased engine performance, high oil consumption, or oil leaks caused by crankcase pressure buildup.
Common Engine Fitment: Most widely used on 2.0T TSI / TFSI (Generation 2) engines.
Vehicle Compatibility: Primarily fits various 2012–2018 Audi models, including the
A4 Part Revisions: This part features a "Clear Top" breather design and directly replaces older factory part numbers 06H103495AE and 06H103495J.
(Note: If updating an older model from a "Black Top" revision to this "Clear Top" style, a matching front crankshaft seal replacement or an ECM update may be required).
- Brand: Audi
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