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Oil Separation & Breather System

Oil Separation & Breather System

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.

This category contains parts that fit the following chassis:

Sub-Categories

CCV/PCV Breather Hoses (198)

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Genuine BMW Emissions Service Kit - E46 M3

T#:375196

Part#: 11157840446KT3

Ships in 1-2 days

$ 397.99

This product was last offered at the strikethrough price on
07-06-2026

$ 395.99 USD

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$ 395.99 USD

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Genuine BMW Upper Oil Separator Vent Tube

T#:7025

Part#: 11617504535

Ships in 1-2 days

2% off MSRP $ 42.99

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

$ 41.99 USD

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Qty

2% off MSRP

$ 42.99

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

$ 41.99 USD

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Genuine BMW Connecting Line -
This item fits the following BMW Chassis:
E39,E46,E53 X5,E83 X3,E85

Fits BMW Engines including:
M52,M54

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

T#:19162

Part#: 11151718713

Ships in 1-2 days

$ 34.99 USD

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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

SET, CRANKCASE VENTI

T#:529958

Part#: 11158635529

Ships in 1-2 days

6% off MSRP $ 518.99

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

$ 488.99 USD

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6% off MSRP

$ 518.99

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

$ 488.99 USD

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Genuine BMW Crank Case Breather Pipe - E38 M62 4.4L, E39 M62 4.4L ...

T#:6691

Part#: 11151705301

Ships in 1-2 days

2% off MSRP $ 51.99

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

$ 50.99 USD

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2% off MSRP

$ 51.99

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

$ 50.99 USD

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Genuine BMW Vent Pipe -
This item fits the following BMW Chassis:
E38,E39

Fits BMW Engines including:
M62

Genuine BMW Crankcase vent pipe

T#:36516

Part#: 11617540610

Ships in 1-2 days

4% off MSRP $ 72.99

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

$ 69.99 USD

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4% off MSRP

$ 72.99

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

$ 69.99 USD

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Genuine BMW Vent Pipe -
This item fits the following BMW Chassis:
E63,E65,E70 X5

Fits BMW Engines including:
N62N

Genuine BMW CCV Connector

T#:32260

Part#: 11151747976

Ships in 4 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

Breather Hose From Valve Cover - E30

T#:6017

Part#: 11151284762

Ships in 1-2 days

4% off MSRP $ 26.99

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

$ 25.99 USD

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4% off MSRP

$ 26.99

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

$ 25.99 USD

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Genuine BMW ENGINE VENT HOSE 11151284762.--

This item fits the following BMWs:
BMW 3 Series - 318i

--.

Vacuum Hose - E70, E71

T#:37115

Part#: 11657846163

In Stock

Sale - Save 8% $ 37.99

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

$ 35.11 USD

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Sale - Save 8%

$ 37.99

This product was last offered at the strikethrough price on
08-26-2026

$ 35.11 USD

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Genuine BMW Vacuum Hose Red
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5,E71 X6

Fits BMW Engines including:
S63

Genuine BMW Crank Case Vent Valve (CCV) - E53 X5 M62 4.4L 4.6L ...

T#:19249

Part#: 11617508541

Ships in 1-2 days

3% off MSRP $ 106.99

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

$ 103.99 USD

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Qty

3% off MSRP

$ 106.99

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

$ 103.99 USD

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Genuine BMW Cover -
This item fits the following BMW Chassis:
E53 X5

Fits BMW Engines including:
M62

Genuine BMW F8X Suction Pump - 11417846385 - F80 M3,F82 M4,F83 ...

T#:194199

Part#: 11417846385

Ships in 1-2 days

8% off MSRP $ 970.99

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

$ 888.99 USD

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8% off MSRP

$ 970.99

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

$ 888.99 USD

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Genuine BMW Suction Pump -
This item fits the following BMW Chassis:
F80 M3,F82 M4,F83

Fits BMW Engines including:
S55

Genuine BMW PCV Valve - E65 E66 760i 760Li

T#:36534

Part#: 11617549715

Ships in 1-2 days

6% off MSRP $ 212.99

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

$ 199.99 USD

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6% off MSRP

$ 212.99

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

$ 199.99 USD

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Genuine BMW Pressure Regulating Valve -
This item fits the following BMW Chassis:
E65

Fits BMW Engines including:
N73

Hose - From Oil Separator to Oil Dipstick Tube - X5 3.0i 2000-2006 ...

T#:2885

Part#: 11157532628

Ships in 1-2 days

3% off MSRP $ 57.99

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

$ 55.99 USD

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Qty

3% off MSRP

$ 57.99

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

$ 55.99 USD

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This is the updated hose that goes from the Crankcase Oil Separator Valve to the oil dipstick tube. This tube tends to get plugged with oil sludge and becomes brittle and cracks. It fits X5 3.0i.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

This item fits the following BMWs:
2000-2006 E53 BMW X5 3.0i

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Genuine BMW Crank Case Vent Valve Kit - E31 840Ci, E38 740i/iL, E39 5...

T#:377891

Part#: 11617501563KT1

Ships in 1-2 days

$ 137.99

This product was last offered at the strikethrough price on
09-03-2026

$ 135.99 USD

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$ 135.99 USD

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Genuine BMW Oil Separator Valve - E38 740i 740iL M62, E39 540i M62 ...

T#:12627

Part#: 11151705272

Ships in 1-2 days

5% off MSRP $ 76.99

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

$ 72.99 USD

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Qty

5% off MSRP

$ 76.99

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

$ 72.99 USD

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Genuine BMW Oil Separator -
This item fits the following BMW Chassis:
E38,E39

Fits BMW Engines including:
M62

Genuine BMW Crank Case Vent - N74 V12

T#:534992

Part#: 11158661697

Ships in 1-2 days

2% off MSRP $ 536.99

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

$ 525.99 USD

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Qty

2% off MSRP

$ 536.99

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

$ 525.99 USD

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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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Qty

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

Vacuum Pipe - E60, E61

T#:37148

Part#: 11667560242

Ships in 1-2 days

4% off MSRP $ 79.99

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

$ 76.99 USD

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Qty

4% off MSRP

$ 79.99

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

$ 76.99 USD

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Genuine BMW VACUUM PIPE
Fits BMW Engines including:
N54

Vacuum Hose - E39

T#:63389

Part#: 34331165496

Ships in 4 Business Days

$ 32.99 USD

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Qty

$ 32.99 USD

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Genuine BMW Vacuum Hose -
This item fits the following BMW Chassis:
E39

Genuine BMW Oil Separator Kit - E39 540i

T#:376836

Part#: 11151747066KT

Ships in 4 Business Days

$ 306.99 USD

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Qty

$ 306.99 USD

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The hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the plastic components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

This kit includes the needed hoses, oil separator, mounting grommet, and hardware.

Fits the following BMWs:
1996-09/1998 E39 BMW 540i

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Return Pipe - E31

T#:68053

Part#: 37131159544

Ships in 7 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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Qty

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

Vacuum Pipe - E90, E92, E93

T#:36663

Part#: 11617838382

Ships in 7 Business Days

5% off MSRP $ 64.99

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

$ 61.99 USD

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Qty

5% off MSRP

$ 64.99

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

$ 61.99 USD

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Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E90,E92,E93

Fits BMW Engines including:
S65

Vacuum Pipe - E82, E88

T#:37140

Part#: 11667551464

Ships in 7 Business Days

4% off MSRP $ 79.99

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

$ 76.99 USD

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Qty

4% off MSRP

$ 79.99

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

$ 76.99 USD

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Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E82

Fits BMW Engines including:
N51,N52N

Vacuum Pipe - E46, Z3

T#:42005

Part#: 13531437282

Special Order: No Guaranteed ETA

$ 32.99 USD

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$ 32.99 USD

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Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M52

Vacuum Hose - E39

T#:62401

Part#: 34301163638

Special Order: No Guaranteed ETA

4% off MSRP $ 27.99

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

$ 27.00 USD

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Qty

4% off MSRP

$ 27.99

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

$ 27.00 USD

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Genuine BMW Vacuum Hose -
This item fits the following BMW Chassis:
E39

Vacuum Pipe - E60, E63, E64

T#:36651

Part#: 11617836997

Ships in 7 Business Days

5% off MSRP $ 102.99

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

$ 97.99 USD

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Qty

5% off MSRP

$ 102.99

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

$ 97.99 USD

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Genuine BMW Vacuum Pipe
This item fits the following BMW Chassis:
E60 M5,E63 M6,E63

Fits BMW Engines including:
S85

Vacuum Pipe - Z4

T#:37182

Part#: 11667613852

Ships in 9 Business Days

4% off MSRP $ 44.99

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

$ 42.99 USD

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Qty

4% off MSRP

$ 44.99

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

$ 42.99 USD

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Genuine BMW Vacuum Pipe With Non-Return Valve -
This item fits the following BMW Chassis:
E85,E86,E89 Z4

Fits BMW Engines including:
N52,N52N

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Genuine BMW Fuel Pressure Regulator Vacuum Line - E39 M5

T#:41966

Part#: 13531407568

Ships in 7 Business Days

2% off MSRP $ 103.99

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

$ 101.99 USD

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Qty

2% off MSRP

$ 103.99

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

$ 101.99 USD

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Genuine BMW Vacuum Pipe
This item fits the following BMW Chassis:
E39 M5,E39

Fits BMW Engines including:
S62

Genuine BMW Vacuum Hose - E36 318ti 318is 318ic 318i M44 1.9L ...

T#:37499

Part#: 11731435862

Ships in 7 Business Days

Sale - Save 24% $ 29.99

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

$ 22.93 USD

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Qty

Sale - Save 24%

$ 29.99

This product was last offered at the strikethrough price on
05-02-2026

$ 22.93 USD

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Genuine BMW Hose - 470mm
This item fits the following BMW Chassis:
E36

Fits BMW Engines including:
M44

Return Pipe - E39

T#:36147

Part#: 11537830558

Ships in 7 Business Days

3% off MSRP $ 224.99

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

$ 217.99 USD

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Qty

3% off MSRP

$ 224.99

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

$ 217.99 USD

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Genuine BMW Return Pipe
This item fits the following BMW Chassis:
E39 M5,E39

Fits BMW Engines including:
S62

Genuine BMW PCV Pipe - E46 M3

T#:36621

Part#: 11617832298

Special Order: No Guaranteed ETA

3% off MSRP $ 72.99

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

$ 70.99 USD

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Qty

3% off MSRP

$ 72.99

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

$ 70.99 USD

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Genuine BMW Pipe
This item fits the following BMW Chassis:
E46 M3,E46

Fits BMW Engines including:
S54

Vacuum Pipe - E39

T#:45164

Part#: 16131184233

Ships in 7 Business Days

4% off MSRP $ 46.99

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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Qty

4% off MSRP

$ 46.99

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 Vacuum Pipe -
This item fits the following BMW Chassis:
E39

Fits BMW Engines including:
M52

CCV Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:51391238

Part#: 11127850244

In Stock

Sale - Save 20% $ 99.99

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

$ 79.99 USD

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Qty

Sale - Save 20%

$ 99.99

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

$ 79.99 USD

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Vacuum Pipe

10X Entries Into Our F80 M3 Sweepstakes

T#:52586629

Part#: 11157603816

In Stock

Sale - Save 20% $ 29.99

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

$ 23.99 USD

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Qty

Sale - Save 20%

$ 29.99

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

$ 23.99 USD

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Bremmen Crankcase Oil Seperator Valve - E38 E39 M62 4.4L

10X Entries Into Our F80 M3 Sweepstakes

T#:640156

Part#: 11151705272

Special Order: No Guaranteed ETA

Sale - Save 16% $ 34.99

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

$ 29.47 USD

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Qty

Sale - Save 16%

$ 34.99

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

$ 29.47 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 the dipstick, valve cover, and air intake.

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Crankcase Oil Separator Valve - E46 E39 E60 X3 X5 Z3 Z4

We Price Match - Give Us A Call or Chat!

T#:2855

Part#: 11617501566

Ships on Dec 3, 2026

$ 48.99 USD

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$ 48.99 USD

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This Crankcase Oil Separator Valve fits BMWs with the M52tu or M54 6 cylinder engine including E46 323i 325i 328i 330i E39 525i 528i 530i E60 525i 530i X3 2.5i 3.0i X5 3.0i Z3 2.5 2.8 3.0i Z4 2.5i 3.0i. It is fairly common for this valve to become plugged with sludge which can create rough idle and excessive oil consumption.
Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self evident in the quality and vast amount of applications they service. With more than 34,000 repair solutions for cars and commercial vehicles you can be sure Febi has you covered.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 328i 328ci 330i 330ci 330xi
1999-2005 E46 BMW 325i 325ci 325xi - only with M54 engine
1999-2003 E39 BMW 525i 528i 530i
2004-2005 E60 BMW 525i 525xi 530i 530xi
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8i Z3 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i

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

10X Entries Into Our F80 M3 Sweepstakes

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

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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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N20 Vacuum Hose - 11657607726

10X Entries Into Our F80 M3 Sweepstakes

T#:36981055

Part#: 11657607726

Special Order: No Guaranteed ETA

Sale - Save 20% $ 42.99

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

$ 34.26 USD

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Qty

Sale - Save 20%

$ 42.99

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

$ 34.26 USD

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Due to weak rubber construction and exposure to heat, this vacuum hose may be brittle and/or broken.

Replace it with this high-quality piece from Bremmen Parts to ensure proper turbocharger functionality.

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Rein Crank Case Ventilation Valve - Priced Each

2X Entries Into Our F80 M3 Sweepstakes

T#:17738377

Part#: 11158647299

In Stock

Sale - Save 12% $ 79.99

This product was last offered at the strikethrough price on
03-26-2026

$ 70.29 USD

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Qty

Sale - Save 12%

$ 79.99

This product was last offered at the strikethrough price on
03-26-2026

$ 70.29 USD

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Rein's OE quality breather hose helps prevent pressure build-up in the engine.

ECS Tuning N54 PCV Valve Upgraded - BMW N54 3.0L

10X Entries Into Our F80 M3 Sweepstakes

T#:4154602

Part#: 090745ECS09

Special Order: No Guaranteed ETA

Sale - Save 25% $ 105.99

This product was last offered at the strikethrough price on
06-14-2026

$ 79.49 USD

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Qty

Sale - Save 25%

$ 105.99

This product was last offered at the strikethrough price on
06-14-2026

$ 79.49 USD

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The OEM plastic Positive Crankcase Ventilation (PCV) valve does not hold pressure well, even when brand new. This means that when you are in boost conditions, the highly pressurized PCV valve leaks charged air back into the crankcase. Depending on the condition of your PCV valve, this can range from irritating to dangerous. Additionally, if your valve cover is cracked, loose, or has a bad gasket, you are likely experiencing a pressure leak either internally or externally, as well as potential oil loss issues. ECS Tuning now offers a solid aluminum PCV valve upgrade designed to address these issues by preventing leaks and outlasting the standard BMW-designed PCV! The internal components of this aluminum PCV valve fit tighter than the OE design and can withstand significantly more abuse, perfect for high mileage N54s, N54s that have been tuned, or N54s with upgraded turbos (larger twin or big single turbo builds). This may not be your last PCV Valve, but it will certainly outlast both the Genuine BMW and other common aftermarket alternatives!

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Turner Oil Separator Valve Service Kit - E39 M5

10X Entries Into Our F80 M3 Sweepstakes

T#:555299

Part#: 11151406788KT3

Back Ordered

$ 326.99

This product was last offered at the strikethrough price on
08-13-2026

$ 325.99 USD

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The rubber hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

This kit includes the needed hoses, oil separator, mounting grommet, and hardware.

Fits the following BMWs:
1998-2003 E39 BMW M5

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FTP Motorsport PCV Valve Upgraded Replacement - N54

T#:583063

Part#: SG84036

Special Order: No Guaranteed ETA

$ 60.00 USD

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$ 60.00 USD

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The OEM plastic PCV valve does not hold pressure well even when brand new. What this means is that when the turbochargers are making boost, pressurized air can become forced backwards through the valve and back into the crankcase. Depending on the condition of your PCV valve this can range from irritating to dangerous as a pressurized case can cause all sorts of issues. Additionally, if your valve cover is cracked due to age or has a bad gasket you are more than likely experiencing a pressure leak either internally or externally. These two features can cause even a low-mileage N54 to run like a tired elephant, sometimes even unlocking a special bonus function known as "Limp Mode". The solution is to replace any failed components and upgrade the PCV valve to something more capable withstanding the abuse of a turbocharged environment. FTP Motorsport has you covered with this solid aluminum valve assembly. It is essentially the same thing that came in your car from the factory, made out of aluminum. The internal components have also been made to fit tighter and outlast the life of an off the shelf replacement. No, this won't be the very last PCV valve you buy, but it will most certainly alleviate a lot of headaches common to N54 owners. And if you're tuned, big twin or single swapped you need one of these yesterday.

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Bav Auto Upper Oil Separator Vent Tube - E36 E46 E60 E84 Z3 Z4 M54 M5...

10X Entries Into Our F80 M3 Sweepstakes

T#:640502

Part#: 11617504535

In Stock

Sale - Save 20% $ 24.99

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

$ 19.99 USD

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$ 24.99

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$ 19.99 USD

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Runs from the top of the oil separator up to rear of the intake manifold. 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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Bremmen Crankcase Ventilation Hose - E39 E53 E60 E83 E46

10X Entries Into Our F80 M3 Sweepstakes

T#:640147

Part#: 11611432559

In Stock

Sale - Save 22% $ 23.99

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

$ 18.76 USD

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$ 23.99

This product was last offered at the strikethrough price on
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$ 18.76 USD

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Crankcase Vent Hose - From Valve Cover to Oil Separator - Fit BMWs with the M52 or M54 6 cylinder engine

Genuine BMW Mounting Grommet

T#:360723

Part#: 13411733217

Ships in 1-2 days

$ 17.86 USD

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$ 17.86 USD

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Oil Separator kit - N63

10X Entries Into Our F80 M3 Sweepstakes

T#:56291074

Part#: 11158636540KT2

In Stock

$ 429.67 USD

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$ 429.67 USD

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If your BMW is burning oil, showing unmetered air faults, or suffering from degraded throttle response, a compromised breather system is usually the culprit. The N63 Crankcase Breather Package pairs Genuine BMW oil separators with OE tier Rein connecting pipes. Designed to restore factory level oil separation and sealed vacuum integrity across both cylinder banks

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Vent Hose for N14 N18 1.6L Engine

10X Entries Into Our F80 M3 Sweepstakes

T#:26238478

Part#: 11157605186

In Stock

Sale - Save 50% $ 30.99

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

$ 15.50 USD

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$ 30.99

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$ 15.50 USD

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Upgrade your N14 N18 1.6L Engine with the Vent Hose. This hose connects to the top valve cover with a special hose clip end and extends to the bottom side of the intake manifold, ensuring optimal performance of your Mini. It's a crucial component of the intake system, designed to enhance engine efficiency and longevity.

Ensures proper ventilation of the engine
Connects securely to the valve cover and intake manifold
Facilitates efficient airflow within the engine compartment
Compatible with N14 N18 1.6L Engine models
Easy to install and replace as needed

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Oil Separator Hose - E46, Z4

10X Entries Into Our F80 M3 Sweepstakes

T#:579880

Part#: 55080

In Stock

Sale - Save 20% $ 24.99

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

$ 19.99 USD

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Cold climate version for extra insulation! Fits all E46 and Z4 chassis equipped with an M54 engine.

Crankcase Ventilation Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:30629689

Part#: 11157532649

In Stock

Sale - Save 24% $ 15.99

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

$ 12.23 USD

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$ 12.23 USD

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BMW Crankcase Pressure Regulator Valve

2X Entries Into Our F80 M3 Sweepstakes

T#:46478579

Part#: ABH0263

In Stock

Sale - Save 7% $ 23.99

This product was last offered at the strikethrough price on
08-31-2026

$ 22.35 USD

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BMW has an ongoing issue with oil separators freezing in cold weather if driving is done before the vehicle is fully warmed up. There is often a howling noise followed by numerous oil leaks. The crankcase breather valve is used to purge the oil vapor from the engine block into the valve cover. However, sometimes condensation can cause it to freeze, causing the entire oil separator system to fail, crack, and disintegrate. Replace this and all the other components of the oil separator system to prevent damage to all the aspects of your engine. As long as you have everything off, you can rest assured that new parts will last and be reliable.

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- CCV/PCV Breather Hoses (198)

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