Don’t Replace the Whole Housing—Fix It for a Fraction of the Cost Is your Mercedes making a high-pitched whistling sound? Experiencing a rough idle or Check Engine light? The culprit is likely a torn oil separator membrane. While the dealership will try to sell you the entire oil separator assembly for $300-$500, we offer a high-quality, standalone replacement diaphragm to save you hundreds in parts and labor.
Top-Tier Performance & Reliability Our 52mm membrane is engineered from high-grade, heat-resistant elastomer designed to withstand the intense thermal cycles of the Mercedes M276 V6 engine. It’s a direct upgrade that restores proper crankcase ventilation and engine vacuum.
Fits OEM Part Numbers: A2760100331 (A 276 010 03 31) 2760100331
Vehicle Fitment Guide:
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GLE & ML-Class (W166): 2012–2019 (ML350, GLE350, GLE400)
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E-Class (W212, S212, C207): 2012–2016 (E350, E400)
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S-Class (W221, W222): 2012–2017 (S350, S400, S550e)
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C-Class (W204): 2012–2014 (C300, C350)
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GLK-Class (X204): 2013–2015 (GLK350)
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CLS-Class (C218): 2012–2018 (CLS400)
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GL & GLS-Class (X166): 2013–2019 (GL450, GLS450)
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SL & SLK/SLC (R231, R172): 2012+
Symptoms of a Failed Membrane:
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The Whistle: A loud whistling or hissing noise from the back of the engine.
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Idle Issues: Shaking or tremors when stopped at a red light.
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Oil Consumption: Increased oil burning or smoke from the exhaust.
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Fault Codes: P0507, P0171, or other lean/vacuum related codes.
Easy 15-Minute DIY Installation:
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Warm up the engine slightly to soften the plastic tabs.
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Pop off the engine cover.
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Carefully pry the oil separator cap (located at the back of the engine).
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Remove the old, torn diaphragm and swap in the new one.
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Snap the cap back into place. Done.
Why Choose Klifex?
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Precision Engineering: Guaranteed 52mm diameter for a perfect seal.
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Direct Savings: Stop paying the "Mercedes Tax" on simple rubber parts.
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Fast Shipping: Get your Benz back on the road today.
Package Includes: (1) 52mm Oil Separator Membrane.
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Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings