Genuine Audi Crankcase Breather Valve Gasket - 06E103517 - This genuine Audi crankcase breather valve gasket is designed to keep engine oil from leaking out of the crankcase breather valve. It is made specifically for Audi vehicles and is an OEM part. It is made of durable materials and is designed to last. It is an essential part of the engine and should be replaced when needed for optimal performance.