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Oil Separation & Breather System for BMW 8 Series E31 (1991-1997)

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Every car has a crankcase vent system that is supposed to suppress oil from making it into the intake ports and combustion chamber. A good functioning system will separate oil from the atmosphere and return it to the oil pan (or collect it in a catch can) while allowing the leftover vapors to burn in the combustion chamber or recirculate through the system. This has always been known as a PCV system (Positive Crankcase Ventilation) but BMW has several other names for it - oil separator, crankcase vent (CCV), and cyclonic separator. Failures in the system will allow raw oil to enter the intake and eventually into the engine itself which can have disastrous effects on engine performance and longevity. As emissions regulations on oil and gas venting have gotten more stringent the PCV systems have gotten more complex and failure prone. And because the CCV is intertwined with other systems you could experience rough running, loss of power, higher oil consumption, misfiring, stalling, or other annoying issues. There is no replacement interval for these so we recommend inspecting your crankcase vent system as part of your regular maintenance routines. Symptoms of a bad crankcase vent are: whitish or yellowish film on the underside of the oil cap, whistling/squealing noises (not caused by a belt), suction on the oil cap that makes it hard to unscrew, large amounts of white smoke from the exhaust, and excessive oil consumption.

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CCV/PCV Breather Hoses (5)

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Intake Manifold Cover (PCV)

2X Entries Into Our F80 M3 Sweepstakes

T#:373047

Part#: 11617501562

Ships in 1 Business Day

$ 55.99 USD

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An integral part of the emissions system, the PVC valve lets the crank case 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. Replace it now.

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Genuine BMW Valve Cover Breather Valve - Cylinders 7-12 - E32 750iL, ...

T#:19163

Part#: 11151718642

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$ 34.99 USD

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Genuine BMW Volume Control Valve - Zyl.7-12

Fits BMW Engines including:
M70,S70

Genuine BMW CCV Connector

T#:32260

Part#: 11151747976

Ships in 2 Business Days

6% off MSRP $ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 44.99 USD

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6% off MSRP

$ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 44.99 USD

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Genuine BMW Connector -
This item fits the following BMW Chassis:
E34,E38,E39

Fits BMW Engines including:
M60,M62

Genuine BMW Valve Cover Breather Valve - Cylinders 1-6 - E32 750iL, E...

T#:19162

Part#: 11151718713

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$ 34.99 USD

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Genuine BMW Volume Control Valve - Zyl.1-6

Fits BMW Engines including:
M70,S70

Return Pipe - E31

T#:68052

Part#: 37131159539

Ships in 1-2 days

3% off MSRP $ 67.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 65.99 USD

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3% off MSRP

$ 67.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 65.99 USD

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Genuine BMW Return Pipe - M12X1

Return Pipe - E31

T#:68053

Part#: 37131159544

Ships in 5 Business Days

2% off MSRP $ 63.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 62.99 USD

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2% off MSRP

$ 63.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 62.99 USD

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Genuine BMW Return Pipe - M10X1

Genuine BMW Mounting Grommet

T#:360723

Part#: 13411733217

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$ 17.86 USD

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$ 17.86 USD

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Oil Separation & Breather System
- CCV/PCV Breather Hoses (5)

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