A2760100331 PCV Oil Separator Membrane 52mm for Mercedes M276 V6
This replacement PCV oil separator membrane is designed for Mercedes-Benz M276 V6 applications using OEM reference A2760100331 (2760100331). The product is a standalone replacement diaphragm for the oil separator / crankcase ventilation system.
This product is an individual 52mm PCV oil separator membrane. It is not a complete oil separator housing or PCV assembly.
OEM / Reference Numbers
- A2760100331 — primary compatible OEM reference
- 2760100331 — same reference without the Mercedes “A” prefix
Part Type
- PCV oil separator membrane
- Crankcase ventilation diaphragm
- Standalone replacement membrane
- Diameter: 52mm
- Not a complete oil separator assembly
What This Part Does
The membrane is part of the engine crankcase ventilation and oil separator system. It helps maintain proper crankcase ventilation and engine vacuum. A torn or damaged membrane can allow vacuum and crankcase ventilation problems to develop.
Compatible Vehicles
- Mercedes-Benz ML / GLE-Class W166 — 2012–2019 — ML350, GLE350, GLE400
- Mercedes-Benz E-Class W212 / S212 / C207 — 2012–2016 — E350, E400
- Mercedes-Benz S-Class W221 / W222 — 2012–2017 — S350, S400, S550e
- Mercedes-Benz C-Class W204 — 2012–2014 — C300, C350
- Mercedes-Benz GLK-Class X204 — 2013–2015 — GLK350
- Mercedes-Benz CLS-Class C218 — 2012–2018 — CLS400
- Mercedes-Benz GL / GLS-Class X166 — 2013–2019 — GL450, GLS450
- Mercedes-Benz SL / SLK / SLC — R231 / R172 — 2012 onward
Engine / Technical Details
- Engine family: Mercedes M276 V6
- Product title engine context: 3.5L V6
- Membrane diameter: 52mm
- Material: high-grade heat-resistant elastomer
- Compatible reference: A2760100331 / 2760100331
- Package includes: 1 x 52mm oil separator membrane
Common Symptoms of PCV Membrane Failure
- High-pitched whistling or hissing noise from the rear of the engine
- Rough idle or shaking when stopped
- Increased oil consumption
- Smoke from the exhaust associated with increased oil burning
- Check Engine light
- P0507 fault code
- P0171 or other lean / vacuum-related fault codes
Why Choose This Replacement Membrane
- Allows replacement of the individual failed PCV membrane without replacing the complete oil separator assembly
- 52mm diameter specified for the compatible application
- Made from heat-resistant elastomer for the M276 engine environment
- Designed for applications using reference A2760100331
Important Before Ordering
- Verify that your existing oil separator / PCV component corresponds to reference A2760100331 or 2760100331.
- Confirm that the required replacement membrane diameter is 52mm.
- Check your Mercedes chassis and application against the fitment list above.
- The vehicle guide on the product page covers multiple Mercedes variants, so do not confirm compatibility by model name alone.
- This product is one standalone PCV membrane and not a complete oil separator assembly.
What does OEM reference A2760100331 fit?
The product listing specifies this 52mm PCV oil separator membrane for Mercedes M276 V6 applications using reference A2760100331, including listed W166, W212, W221, W204, X204, C218, X166, R231 and R172 chassis applications.
Are A2760100331 and 2760100331 the same reference?
Yes. The product page lists A2760100331 and 2760100331 together, with the latter being the same number shown without the Mercedes “A” prefix.
What size is the Mercedes M276 PCV membrane?
The replacement oil separator membrane has a confirmed diameter of 52mm.
What symptoms can indicate a failed M276 PCV membrane?
Listed symptoms include whistling or hissing, rough idle, increased oil consumption, exhaust smoke and lean or vacuum-related fault codes such as P0507 and P0171.
Is this a complete Mercedes oil separator assembly?
No. The package contains one standalone 52mm replacement membrane. It is not a complete oil separator housing or PCV assembly.
How do I confirm compatibility before ordering?
Verify reference A2760100331 or 2760100331 on the compatible PCV / oil separator application, confirm the required 52mm membrane size, and check the vehicle chassis against the fitment list.
Read All
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