Oil Separator Repair Kit — Chevrolet Captiva / Epica / Lacetti & Opel Antara 2.0 CDTI
Stop Crankcase Oil Leaks at the Source — No Full Separator Replacement Needed.
Is your GM 2.0 CDTI diesel blowing blue smoke, consuming oil, or showing crankcase pressure faults? A failed oil separator diaphragm is the #1 culprit — and you don't need a new separator to fix it.
This complete repair kit includes a precision-cut 68.5mm diaphragm and all seals needed to rebuild your existing oil separator, restoring proper crankcase ventilation at a fraction of the cost of a replacement unit.
What's Included
- 68.5mm replacement diaphragm — matches OEM dimensions exactly
- All necessary seals — complete rebuild kit, nothing extra needed
Why This Kit
- Targeted Fix: Replace only the worn diaphragm — not the entire separator assembly.
- OEM-Spec Dimensions: 68.5mm diaphragm matches factory specifications for a perfect seal.
- Stops Oil Consumption: Restores correct crankcase pressure and eliminates oil blow-by.
- Cost-Effective: Save $80–$200+ vs. buying a complete new oil separator.
Vehicle Compatibility
| Make & Model | Engine / Years |
|---|---|
| Chevrolet Captiva (C100, C140) | 2.0D — 2006+ |
| Chevrolet Epica (V250) | 2007–2008 |
| Chevrolet Lacetti / Optra (J200) | 2003–2008 |
| Opel Antara (L07) | 2.0 CDTI |
OEM Cross-Reference Numbers
- 4805086
- 96440314
Pro Tip: On GM 2.0 CDTI engines, oil separator diaphragm failure typically shows up as increased oil consumption, blue/white exhaust smoke at idle, or a P0171/P0507 crankcase ventilation fault code. This kit fixes all three symptoms when the separator is the cause.
FAQ
Q: Do I need to replace the whole separator or just rebuild it?
A: In most cases you just need to rebuild it. This kit gives you everything to do exactly that — no need to source a complete unit.
Q: Will this fit both the Captiva and the Antara?
A: Yes. Both vehicles use the same GM 2.0 CDTI engine platform and the same separator — this kit fits all listed models.
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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