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Crankcase Vent System, Valves & Hoses

The BMW crankcase vent system separates liquid oil from the air inside the engine and intake. When working correctly, oil is removed from the intake air and returned to the oil pan. Oil vapor remains and is burned up in the combustion chamber. Every car has some form of crankcase ventilation, also known as a PCV, CCV, oil separator, and a cyclonic separator. BMW CCV system are notoriously failure prone, leading to high oil consumption, burning oil, loss of power, misfiring, and high carbon deposits. The problems are worse on the turbocharged models where the CCV needs to keep up with the pressure from the turbocharger(s). An overhaul of the CCV system should be planned every couple of years and especially before the winter months. Signs of a failing CCV include: whistling noises in the intake, blueish smoke in the exhaust, high oil consumption, and thick white or yellow gunk under the oil cap.
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Crankcase Vent Hose - E82 135i, E9X 335i, E60 535i N54

Plastic CVV hose that cracks and leads to N54 oil leaks

Price: $43.99

50.42
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Crankcase Vent Valve / Oil Separator Kit, Cold Climate - E46, E39, E60, X3, X5, Z3, Z4

Genuine BMW 3-piece CCV kit - insulated oil separator and attached hoses

Price: $58.10

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Crankcase Vent Valve / Oil Separator Kit, Cold Climate - E46, E39, E60, X3, X5, Z3, Z4

3-piece CCV kit by URO - insulated oil separator and attached hoses

Price: $66.99

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Crankcase Vent Hose, Genuine BMW - E46 M3 05-06, Z4M (11157834056)

2005-2008 models. Plastic vent hose transferring oil vapor to intake manifold.

Price: $188.99

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Crankcase Vent Hose, Genuine BMW - E46 M3 01-04, MZ3 (11157831311)

2001-2004 models. Plastic vent hose transferring oil vapor to intake manifold.

Price: $51.75

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Crankcase Vent Valve, Bosch OEM - E60 550i, E63 650i, E66 750Li, X5 N62

New CCV valve helps the engine run smoother

Price: $22.89

25.37
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Crankcase Vent Return Pipe - E46 E39 E60 X3, X5, Z4

Secondary vent hose from CCV to top of manifold

Price: $18.99

43.10
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Crankcase Vent Return Pipe - E46 E39 E60 X3, X5, Z4

Secondary vent hose from CCV to top of manifold

Price: $13.69

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Valve Cover Oil Vent Hose, OEM - E30 325e/325i, E28 528e, E34 525i (M20 Engine)

New OEM vent hose to helps the engine breathe

Price: $5.99

18.47
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Valve Cover Oil Vent Hose, Aftermarket - E30 325e/325i, E28 528e, E34 525i (M20 Engine)

New vent hose to helps the engine breathe

Price: $3.25

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Crankcase Vent Valve / Oil Separator - E36 328/M3, E39 528i M52 97-98, Z3 2.8 97-98, MZ3 S52

New CCV valve helps the engine run smoother

Price: $41.63

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Valve Cover Vent Hose - E36 318i M42

New vent hose to helps the engine breathe

Price: $17.76

27.93
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Crankcase Vent Hose - E90 325i/330i, E60 525i/530i, Z4 3.0i/3.0si

Vent hose from oil separator to intake manifold

Price: $16.41

28.08
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Crankcase Vent Hose - E90 325i/330i, E60 525i/530i

Vent hose from oil separator to intake manifold

Price: $32.99

75.54
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Crankcase Vent Valve / Oil Separator & Hose Kit, Cold Climate - E46, E39, E60, X3, Z3, Z4

5-piece CCV kit by Febi-Bilstein - insulated oil separator and attached hoses

Price: $130.51

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Crankcase Vent Valve / Oil Separator & Hose Kit, Cold Climate - E46, E39, E60, X3, Z3, Z4

5-piece CCV kit by Vaico - insulated oil separator and attached hoses

Price: $119.00

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Crankcase Vent Valve & Hose Kit, Standard - E46, E39, E60, X3, Z3, Z4

5-piece CCV kit by Febi-Bilstein - oil separator and attached hoses

Price: $94.99

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Crankcase Vent Valve & Hose Kit, Standard - E46, E39, E60, X3, Z3, Z4

5-piece CCV kit - oil separator and attached hoses

Price: $103.99

244.25
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Crankcase Vent Pipe - E90 325i/330i, E60 525i/530i, Z4 3.0si

Vent hose from valve cover

Price: $97.40

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Crankcase Vent Valve / Oil Separator, Cold Climate Version - E46, E39, E60, X3, X5, Z3, Z4

Insulated version for cold climates

Price: $35.99

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Crankcase Vent Hose Cyl. 1-4 - E39 M5

New vent hose to helps the engine breathe

Price: $16.01

28.57
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Crankcase Vent Hose Cyl. 5-8 - E39 M5

New vent hose to helps the engine breathe

Price: $15.65

29.40
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Crankcase Vent Valve - E36 318i, Z3 1.9 - 11157501567 - Febi

New CCV valve helps the engine run smoother

Price: $31.45

72.42
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Crankcase Vent Valve - E36 318i, Z3 1.9 - 11157501567 - OEM

New CCV valve helps the engine run smoother

Price: $39.29

72.42
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Crankcase Vent Valve / Oil Separator, Genuine BMW - E46 M3, MZ3, Z4M

Genuine BMW oil separator restores optimal crankcase venting.

Price: $48.40

57.67
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Crankcase Vent Valve / Oil Separator - E90 325/330 E60 525/530 Z4 3.0i/si

New CCV valve helps the engine run smoother

Price: $78.25

98.03
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Crankcase Vent Valve / Oil Separator - Genuine BMW - E9X M3

Integral part of the crankcase vent system.

Price: $91.99

104.00
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Crankcase Vent Valve / Oil Separator - M60/M62 540i/740i/840i

New CCV valve helps the engine run smoother

Price: $48.99

55.70
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Crankcase Vent Connecting Line, Standard - E46 323i/328i, E39 528i, Z3 2.3/2.8

Early vent hose from CCV to top of manifold

Price: $19.65

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Crankcase Vent Valve / Oil Separator, Standard Version - E46, E39, E60, X3, X5, Z3, Z4

Standard version without foam insulation

Price: $34.99

109.36
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Crankcase Vent Valve / Oil Separator, Standard Version - E46, E39, E60, X3, X5, Z3, Z4

Standard version without foam insulation

Price: $19.99

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Crankcase Vent Hose, Cold Climate, OEM - E53 X5 3.0

Insulated drain hose from CCV to dipstick tube

Price: $14.98

29.98
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Crankcase Vent Hose, Cold Climate, OEM - E46, E39, E60, X3, Z3, Z4

Insulated drain hose from CCV to dipstick tube

Price: $18.99

35.70
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Crankcase Vent Hose, Cold Climate - E46, E39, E60, X3, Z3, Z4

Insulated drain hose from CCV to dipstick tube

Price: $8.29

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Crankcase Vent Valve, Cold Climate Version - E46, E39, E60, X3, X5, Z3, Z4

Insulated version for cold climates

Price: $39.99

80.70
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Crankcase Vent Connecting Line, Standard, Rein - E46 323i/328i, E39 528i, Z3 2.3/2.8

Early vent hose from CCV to top of manifold

Price: $27.99

47.41
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Crankcase Vent Connecting Line, Standard, Rein - E46, E39, E60, X3, X5, Z3, Z4

Vent hose from CCV to top of manifold

Price: $22.99

47.41
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Crankcase Vent Hose, Standard, Rein - E46, E39, E60, X3, X5, Z3, Z4

Drain hose from CCV to dipstick tube

Price: $16.99

26.56
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Crankcase Vent Pipe, Cold Climate, Rein - E46, E39, E60, X3, X5, Z3, Z4

Insulated vent hose from valve cover

Price: $23.99

34.82
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Crankcase Vent Pipe, Standard, Rein - E46, E39, E60, X3, X5, Z3, Z4

Vent hose from valve cover

Price: $28.99

32.03
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