Oil Separator PCV Membrane — Mercedes-Benz A-Class W177 A180d OM608.915
Stop Oil Mist and Crankcase Faults on Your A180d — Replace the PCV Membrane.
The oil separator membrane (PCV diaphragm) on the Mercedes-Benz A 180 d (OM608.915 diesel) is a wear item that degrades over time. When it fails, crankcase gases carrying oil mist bypass the separator and enter the intake — causing smoke, oil consumption, and crankcase ventilation fault codes.
This is a direct replacement membrane for the oil separator on the W177 A180d. Diameter: 57mm.
Why Replace the PCV Membrane
- Stops Oil Mist in the Intake: A failed membrane lets oil-laden crankcase gases pass through — fouling the intake manifold and EGR valve.
- Clears Fault Codes: Restores proper crankcase pressure regulation and eliminates related fault codes.
- Stops Oil Consumption: Blue smoke at startup or under load on the OM608 is often caused by a failed separator membrane.
- Low-Cost Fix: One of the most affordable maintenance items on this engine — replace it before it causes secondary damage.
Vehicle Compatibility
| Model | Engine |
|---|---|
| Mercedes-Benz A-Class A 180 d (W177) | OM608.915 — 1.5L Diesel |
OEM References
- A6080102400 / 6080102400
- Cross-reference: 117232PS
Membrane diameter: 57mm
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