Bavarian Autosport CCV Oil Separator System

BMWs oil separator and crankcase ventilation system is excellent at what it does when properly maintained. Always inspect any visible hoses when you are under the hood and follow the manufacturers replacement schedule.

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Bav Auto Crankcase Pressure Regulator Valve - E36 E39 Z3

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:638090

Part#: 11151703484

Ships on Jul 28, 2026

Sale - Save 20% $ 38.99

This product was last offered at the strikethrough price on
05-03-2026

$ 31.19 USD

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Sale - Save 20%

$ 38.99

This product was last offered at the strikethrough price on
05-03-2026

$ 31.19 USD

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BMW has an issue with oil separators freezing in cold weather if the engine is not fully warmed up during driving. Common symptoms are a howling noise followed by oil leaks. Crankcase breather valve used to purge the oil vapor from the engine block into the valve cover. This valve has 4 hoses connected to it, running to dipstick, valve cover, air intake. You should also look into replacing your valve cover gasket when changing the separator.

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Bav Auto Intake Manifold Cover w/ PCV Valve - BMW E31 E32 E34 E38 M6...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:639843

Part#: 11617501562

Special Order: No Guaranteed ETA

Sale - Save 15% $ 59.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

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Qty

Sale - Save 15%

$ 59.99

This product was last offered at the strikethrough price on
05-03-2026

$ 50.99 USD

Add to Wish List

An integral part of the emissions system, the PVC valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. Often split from underhood heat and age, this vents excess oil into the engine compartment. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bavarian Autosport CCV Oil Separator System

Bav Auto Crankcase Pressure Regulator Valve - E36 E39 Z3

Bav Auto Intake Manifold Cover w/ PCV Valve - BMW E31 E32 E34 E38 M6...

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