Genuine BMW Oil Separation & Breather System for BMW 5 Series E34 (1987-1995)

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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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Genuine BMW Intake Manifold Cover (PCV)
Genuine BMW Intake Manifold Cover (PCV)
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T#:19248
Part#: 11617501562
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3% off MSRP $ 87.99

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$ 84.99 USD
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3% off MSRP
$ 87.99

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$ 84.99 USD
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Genuine BMW ENGINE COVER WITH NON-RETURNVALVE
Genuine BMW Idle Speed Control Hose
Genuine BMW Idle Speed Control Hose
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T#:367818
Part#: 13411710793
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2% off MSRP $ 108.99

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$ 108.99

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Genuine BMW CCV Connector
Genuine BMW CCV Connector
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T#:32260
Part#: 11151747976
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6% off MSRP $ 47.99

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$ 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 Mounting Grommet
Genuine BMW Mounting Grommet
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T#:360723
Part#: 13411733217
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$ 17.86 USD
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$ 17.86 USD
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Vacuum Hose - E24, E28, E3, E30, E32, E34, E46, Z3
Vacuum Hose - E24, E28, E3, E30, E32, E34, E46, Z3
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T#:149270
Part#: 64111368684
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8% off MSRP $ 12.99

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$ 11.99 USD
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Genuine BMW Vacuum Hose White - 2X4
This item fits the following BMW Chassis:
E30 M3,E34 M5,E46 M3,E30,E34,E46

Genuine BMW Sound Absorber - 11611742324 - E34
Genuine BMW Sound Absorber - 11611742324 - E34
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T#:36425
Part#: 11611742324
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2% off MSRP $ 169.99

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$ 166.99 USD
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$ 169.99

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

$ 166.99 USD
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Genuine BMW Sound Absorber -
This item fits the following BMW Chassis:
E34

Fits BMW Engines including:
M60

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