{"product_id":"6420102091-engine-oil-separator-breather-valve-fit-for-mercedes-benz-w164-x164-w251-w221-s320-sprinter-906-v6-cdi","title":"Engine Oil Separator Breather Valve for Mercedes-Benz W164 W251 W221 S320","description":"\u003cdiv\u003e\n\u003cp\u003eThis precision-engineered vent valve replaces worn factory components that allow crankcase oil vapors to leak into the intake manifold. Built specifically for Mercedes-Benz platforms equipped with the OM642 3.0L V6 CDI diesel engine, it restores accurate pressure balance to the oil pan and breathing circuit. By capturing excessive oil mist before it reaches sensitive intake passages, this separator eliminates rough idling, reduces unwanted oil consumption, and prevents carbon buildup around turbos and fuel injectors. Designed for straightforward bolting at the front engine section, the unit matches original mounting points and airflow tolerances without modifying breather hoses or needing control module programming.\u003c\/p\u003e \u003ch2\u003eBenefits \u0026amp; Practical Tips\u003c\/h2\u003e\n\u003cp\u003eMaintaining clean crankcase ventilation keeps fresh air flowing through the combustion chamber, which preserves turbo boost response and extends the lifespan of oxygen sensors and catalytic converters. When performing this replacement, always rotate the new valve by hand until it seats fully to cross-thread damage on aluminum engine blocks. For long-term reliability, inspect the attached negative-pressure hoses for brittleness or micro-cracks, as compromised rubber often causes the same suction-loss symptoms as a failed partition valve.\u003c\/p\u003e \u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOE Reference Numbers: 6420102091, 642 010 20 91, A6420101891, 6420101891, 6420100591, 6420100191, 6420100391\u003c\/li\u003e\n\u003cli\u003eCompatible Powertrain: OM642 V6 3.0L CDI Diesel\u003c\/li\u003e\n\u003cli\u003eVerified Chassis Fitment: W164, W203, W211, W219, W221, W204\/W218 GLK, W463, W251, and W906 Sprinter\u003c\/li\u003e\n\u003cli\u003eMounting Position: Front engine section\u003c\/li\u003e\n\u003cli\u003eManufacturing Region: Mainland China\u003c\/li\u003e\n\u003cli\u003eComponent Category: Mechanical engine ventilation component\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eOne (1) Engine Oil Separator Breather Valve\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eImportant Reminders\u003c\/h2\u003e\n\u003cp\u003eDisconnect the vehicle battery prior to removal to prevent accidental voltage spikes when accessing adjacent wiring harnesses. Avoid overtightening during installation; gentle torque ensures the internal diaphragm remains aligned. Dispose of drained crankcase residues responsibly and verify that all clamps lock securely before initiating the engine for the first time.\u003c\/p\u003e \u003cp\u003eAll electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty. Delivering dependable automotive components backed by transparent support since 2002 at intercyprus.com.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"InterCyprus Trading Ltd","offers":[{"title":"China Mainland","offer_id":55348824473942,"sku":"1005001509838389-China Mainland","price":34.21,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0530\/0604\/1274\/files\/S6cd36cdb87b7499a83d183fca9482b92W.webp?v=1792842461","url":"https:\/\/www.intercyprus.com\/products\/6420102091-engine-oil-separator-breather-valve-fit-for-mercedes-benz-w164-x164-w251-w221-s320-sprinter-906-v6-cdi","provider":"InterCyprus Trading Ltd","version":"1.0","type":"link"}