Oil Separator (PCV) Repair Kit — Mercedes-Benz OM611 / OM642 / M272 Engines
Rebuild Your Mercedes Oil Separator in Minutes — Stop Oil Consumption Without Replacing the Whole Unit.
Is your Mercedes burning oil, showing rough idle, or triggering crankcase ventilation codes? The oil separator diaphragm is one of the most common failure points on Mercedes diesel and petrol engines — and you don't need a $150+ new separator to fix it.
This kit includes a precision 70mm diaphragm (026012/24) and all necessary seals to fully rebuild your existing separator. Compatible with an exceptionally wide range of Mercedes-Benz engines and platforms — from C-Class to Sprinter.
What's Included
- 70mm replacement diaphragm (part# 026012/24) — OEM-spec fit
- All seals and o-rings — complete rebuild kit
Why This Kit
- Covers a Wide Range of Engines: From OM611 and OM612 diesels to OM642 V6 and M272 petrol — one kit, many applications.
- Fix It, Don't Replace It: The diaphragm is the weak point. Replace it and your separator works like new.
- OEM-Spec Fit: 70mm diameter matches factory specs — no trimming or modifications needed.
- Massive Cost Savings: Complete rebuild for a fraction of the price of a new OEM separator.
Compatible Separators (OEM Numbers)
This kit rebuilds the following original Mercedes-Benz oil separator part numbers:
- A6420100591, A6420100391, A6420101891, A6420102091
- A6110160334, A6110160134, A6110160234
- A0001801015
- A6680160534, A6680160334, A6680160434
- A6420100291, A6420101991
Vehicle Compatibility
| Platform | Models | Engine |
|---|---|---|
| W202 / W210 / S210 / W901–W906 | C-Class, E-Class, Sprinter | OM611 |
| W163 / W211 / W220 / V220 / W463 | ML, E, S, G-Class | OM612 (pressure valve) |
| W164 / X164 / W203 / S203 / W204 / S204 / C204 / X204 | ML/GL, C-Class, GLK | OM642 |
| Vito W638 / Vito–Viano W639 / Sprinter W906 | Vito, Viano, Sprinter | OM646 / OM642 |
| A-Class W168 / Vaneo W414 | A-Class, Vaneo | A6680… series |
Pro Tip: Common symptoms of a failed Mercedes oil separator diaphragm: excessive oil consumption, blue smoke at startup, rough idle, and P0171 / P0507 / P0106 codes. This kit directly addresses the root cause on all listed platforms.
FAQ
Q: My separator OEM number isn't in the list — will this still fit?
A: The 70mm diaphragm (026012/24) covers a very wide range of Mercedes separators. If your separator uses a 70mm diaphragm, this kit will fit. Check the diaphragm diameter before ordering if unsure.
Q: Does this fit both diesel and petrol engines?
A: Yes — this kit covers both diesel (OM611/612/642/646) and petrol (M272) Mercedes-Benz engines, all of which share compatible separator designs.
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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