Domov » Engine Oil Separator Crankcase Vent Valve Membrane for Mercedes-Benz W164 X164 W221 S320 E320

Engine Oil Separator Crankcase Vent Valve Membrane for Mercedes-Benz W164 X164 W221 S320 E320

SKU: 1005006293062602-5 PCS
Color
€25,23
-37% €40,36 €25,23

The Engine Oil Separator Crankcase Vent Valve Membrane provides an airtight seal for Mercedes-Benz OM642 V6 CDI engines, effectively managing crankcase vapors and preventing harmful backpressure that leads to oil sludge and rough running. Over extended heat cycles, the rubber diaphragm hardens or develops micro-tears, allowing unmetered air into the intake or pushing oil past piston rings. Swapping this membrane restores precise breathability, stabilizes idle smoothness, reduces unnecessary oil consumption, and keeps your turbo and EGR components free of contaminant buildup.

Benefits & Maintenance Tips

  • Inspect surrounding breather hoses during replacement to ensure no secondary cracks are trapping moisture or fumes.
  • Clean mating surfaces with brake cleaner or isopropyl alcohol to guarantee the new gasket seals completely under vibration.
  • Replace at least every 60,000 miles or during major engine service intervals to avoid sudden diaphragm failure.

Product Specifications

  • Material Construction: Engineered rubber compound optimized for temperature and chemical resistance
  • Gasket Diameter: 70 mm
  • OEM References: 51018040019, 6420100591, A6420100591, A6420102091, 6420102091
  • Alternate Part Numbers: 6420100191, 6420100391, 6420101891
  • Application Platform: Mercedes-Benz V6 CDI 3.0L (OM642 series)
  • Fit Models & Years: W211 E320/E350 CDI (2007–2009), W221 S320/S350 CDI (2007–2009), W164/X164 ML/GL 320/350 CDI (2007–2012), W251 R320/R350 CDI (2007–2012), plus select W204, W463, and Sprinter W906 variants

Package Includes:

  • 1x Engine Oil Separator Crankcase Vent Valve Membrane

Warnings & Reminders

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Compatibility listings serve as reference only. Always compare the stamped identifier on your factory component with the OEM and part numbers provided before ordering. Mismatched valves will not seal correctly and may trigger fault codes. Professional installation is recommended to torque fasteners evenly and verify leak-free operation after reassembly.

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