Oil Separation & Breather System for BMW 6 Series F12 (2012+)

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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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Rein - Crank Case Vent Hose - F10 M5, F12 M5, F13 M6
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Rein - Corporate Logo
T#:26404796
Part#: 11157843151
In Stock
$ 32.99 USD
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Rein Crank Case Vent Hose is a high-quality replacement part designed to enhance the performance and longevity of your vehicle’s engine. Manufactured by Rein Automotive, this vent hose is built to withstand high pressures and temperatures, ensuring reliable crankcase ventilation. Engineered for a precise fit, it helps prevent harmful oil vapors from entering the intake manifold, improving overall engine efficiency. Available at Turner Motorsport, this vent hose is an ideal choice for drivers looking to maintain their vehicle’s performance and emissions standards.

  • Designed for optimal crankcase ventilation, improving engine performance
  • Reduces oil vapor contamination in the intake system, protecting engine components
  • Made with durable materials to resist wear from heat and pressure
  • Ensures precise fit and easy installation as a direct OEM replacement
  • Helps reduce harmful emissions, supporting cleaner engine operation

Turner Motorsport offers the Rein Crank Case Vent Hose as a dependable solution to keep your engine running smoothly while meeting emissions regulations.

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Bremmen Crankcase Ventilation Connecting Pipe - Cylinders 1-4 - E70/1...
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Bremmen Parts - Corporate Logo
T#:640154
Part#: 11157646086
In Stock
Sale - Save 21% $ 52.99

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

$ 41.61 USD
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Sale - Save 21%
$ 52.99

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

$ 41.61 USD
Free Shipping on orders $49 and up
Connects to the valve cover over cylinders 1-4. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, Bremmen pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.
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Bremmen Crankcase Ventilation Connecting Pipe - Cylinders 5-8 - E70/1...
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Bremmen Parts - Corporate Logo
T#:640153
Part#: 11157646087
In Stock
Sale - Save 20% $ 49.99

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

$ 39.98 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 49.99

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

$ 39.98 USD
Free Shipping on orders $49 and up
Connects to the valve cover over cylinders 5-8. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, Bremmen pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.
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OEM Rein Cylinders 5-8 Crankcase Ventilation Connecting Pipe - E70/1 ...
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Rein - Corporate Logo
T#:402034
Part#: 11157646087
In Stock
$ 53.99 USD
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Connects to the valve cover over cylinders 1-4. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, OEM Rein pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.
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OEM Rein Crankcase Vent Hose - F10 F12 F13 M5 M6
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Rein - Corporate Logo
T#:39059240
Part#: 11157843150
In Stock
$ 34.99 USD
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The Crankcase Vent Hose is a crucial component that helps regulate crankcase pressure and prevent oil vapor buildup, ensuring optimal engine performance. Designed as a direct replacement for BMW part number 11157843150, this high-quality vent hose restores proper ventilation to protect vital engine components.
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Crank Case Vent Hose Kit - S63 4.4L Engine
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Packaged by Turner - Corporate Logo
T#:23913949
Part#: CRNKVENTKITKT
In Stock
$ 224.99 USD
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Elevate your S63 4.4L engine's capabilities with our meticulously designed Crank Case Vent Hose Kit. Crafted from premium-grade materials, this kit ensures superior ventilation, mitigating pressure accumulation within the engine, thereby enhancing its overall performance.

Engineered to precise specifications, our kit seamlessly replaces the OEM vent hoses, guaranteeing a perfect fit. By reducing stress on the engine, it prolongs its lifespan and maintains peak functionality. Rely on this kit to provide unparalleled performance and unwavering reliability for your S63 4.4L engine.

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Vacuum Pipe
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Genuine BMW - Corporate Logo
T#:37159
Part#: 11667575774
Ships in 1 day
Sale - Save 5% $ 42.00

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

$ 39.90 USD
Free Shipping on orders $49 and up
Sale - Save 5%
$ 42.00

This product was last offered at the strikethrough price on
06-25-2026

$ 39.90 USD
Free Shipping on orders $49 and up


Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E71,E82,E90,E92,E93,F06,F10,F12,F13,F15,F16

Fits BMW Engines including:
N55

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OEM Rein Cylinders 1-4 Crankcase Ventilation Connecting Pipe - E70/1 ...
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Rein - Corporate Logo
T#:402033
Part#: 11157646086
In Stock
$ 50.99 USD
Free Shipping on orders $49 and up
Connects to the valve cover over cylinders 1-4. These pipes tend to crack after become brittle from numerous heating and cooling cycles. If this happens, OEM Rein pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.
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Genuine BMW Vent Hose Zyl. 5-8 - 11157843151 - F06,F10,F12,F13 ...
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Genuine BMW - Corporate Logo
T#:177043
Part#: 11157843151
In Stock
$ 108.59 USD
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Genuine BMW Vent Hose - Zyl. 5-8
This item fits the following BMW Chassis:
F06,F10,F12,F13

Fits BMW Engines including:
S63N


Genuine BMW Vent Hose Zyl. 1-4 - 11157843150 - F06,F10,F12,F13 ...
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Genuine BMW - Corporate Logo
T#:32308
Part#: 11157843150
In Stock
4% off MSRP $ 108.59

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

$ 103.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 108.59

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

$ 103.99 USD
Free Shipping on orders $49 and up


Genuine BMW Vent Hose - Zyl. 1-4
This item fits the following BMW Chassis:
F06,F10,F12,F13

Fits BMW Engines including:
S63N

Genuine BMW Crankcase Vent Pipe - Cylinders 5-8 - N63 4.4L
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Genuine BMW - Corporate Logo
T#:32286
Part#: 11157575641
Ships in 1 day
5% off MSRP $ 61.99

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

$ 58.99 USD
Free Shipping on orders $49 and up
5% off MSRP
$ 61.99

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

$ 58.99 USD
Free Shipping on orders $49 and up


Genuine BMW Vent Pipe - Zyl 5-8
This item fits the following BMW Chassis:
E71,F01,F02,F10,F12,F13

Fits BMW Engines including:
N63

Genuine BMW Crankcase Vent Pipe - Cylinders 1-4 - N63 4.4L
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Genuine BMW - Corporate Logo
T#:32285
Part#: 11157575640
Ships in 1 day
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
Free Shipping on orders $49 and up
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
Free Shipping on orders $49 and up


Genuine BMW Vent Pipe - Zyl 1-4
This item fits the following BMW Chassis:
E71,F01,F02,F10,F12,F13

Fits BMW Engines including:
N63



Genuine BMW Vacuum Pipe
Vacuum Pipe
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Genuine BMW - Corporate Logo
T#:37048
Part#: 11657612158
Ships in 1 day
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
Free Shipping on orders $49 and up
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
Free Shipping on orders $49 and up


Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E71,F01,F02,F06,F10,F12,F13

Fits BMW Engines including:
N63,N63N

ECS Tuning Baffled Oil Catch Can - 8oz
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ECS - Corporate Logo
T#:13496655
Part#: 003779ECS05-02
In Stock
Sale - Save 10% $ 238.99

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

$ 215.09 USD
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Sale - Save 10%
$ 238.99

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

$ 215.09 USD
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Upgrade Your BMW with ECS Baffled Oil Catch Can

Modern emission regulations require a closed PCV/Breather system for cleaner operation. However, inefficient oil particle capture can lead to excessive oil vapor ingestion, causing carbon buildup, reduced performance, and fuel economy. ECS Tuning's updated ECS Baffled Oil Catch Can, now with an easy-to-empty 1/4" drain fitting, is engineered to collect toxic blow-by gases, minimize carbon deposits, and reduce oil contamination within engine oil. Recirculating oil vapor ensures emissions compliance without venting to the atmosphere.

  • Key Features:
  • Highly Efficient Oil Separator: Strategically positioned 4 chamber baffle system maximizes oil/air separation and minimizes oil droplets in the intake tract.
  • Integrated Dipstick: Knurled and black anodized oil dipstick simplifies oil volume inspection.
  • Reservoir: Available in 6oz or 8oz capacity with a 1/4" NPT drain plug fitting.
  • Serviceable: Easily removable baffle plates and drain plug for cleaning.
  • Easy/Customizable Installation: Combine with the ECS Universal Bracket Kit for simplified installation and adjustable mounting locations.
  • Leak-Free Fittings: Machined -10AN ORB (O-Ring Boss) fittings available for secure connections (fittings sold separately).
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Rein Crankcase Vent Pipe - Cylinders 1-4 - E70, E71, F01, F02, F07, F...
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591595
Part#: 11157575640
In Stock
$ 42.99 USD
Free Shipping on orders $49 and up
Replace your damaged crank vent pipe

Rein Crankcase Vent Pipe - Cylinders 5-8 - E70, E71, F01, F02, F07, F...
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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Rein - Corporate Logo
T#:591596
Part#: 11157575641
In Stock
$ 45.99

This product was last offered at the strikethrough price on
04-30-2026

$ 44.99 USD
Free Shipping on orders $49 and up
$ 44.99 USD
Free Shipping on orders $49 and up
Replace your damaged crank vent pipe

Rein Crank Case Ventilation Valve - Priced Each
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Rein - Corporate Logo
T#:17738377
Part#: 11158647299
In Stock
$ 79.99

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

$ 73.99 USD
Free Shipping on orders $49 and up
$ 73.99 USD
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Rein's OE quality breather hose helps prevent pressure build-up in the engine.
Crank Case Vent Hose - S63
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Bremmen Parts - Corporate Logo
T#:35357263
Part#: 11157843150
In Stock
$ 60.99

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

$ 44.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
$ 60.99

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

$ 44.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up

The engine crankcase breather hose is a vital part of the Positive Crankcase Ventilation (PCV) system, responsible for directing pressurized air from the engine crankcase to the air/oil separator, also known as the PCV valve. This separator removes oil vapors from the air, allowing the oil to return to the engine while feeding the filtered air back into the intake system to support efficient combustion.

As a byproduct of the combustion process, positive crankcase pressure naturally builds up in the engine. The breather hose operates under constant exposure to heat, pressure, and an air/oil vapor mixture, making it prone to wear and failure over time. Ensuring the breather hose is in proper working condition is crucial for maintaining engine performance, adhering to emissions standards, and preserving the functionality of the PCV system. Promptly replace this component at the first signs of damage or degradation to avoid further complications.

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Crankcase Ventilation Connecting Pipe - Cylinders 1-4
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Hamburg Tech - Corporate Logo
T#:50626658
Part#: 11157646086
Ships in 1 Business Day
New Item
$ 57.99 USD
Free Shipping on orders $49 and up
Crankcase Ventilation Connecting Pipe - Cylinders 5-8
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Hamburg Tech - Corporate Logo
T#:50626659
Part#: 11157646087
Ships in 1 Business Day
New Item
$ 59.99 USD
Free Shipping on orders $49 and up

Bremmen Parts Crankcase Vent Pipe - Cylinders 5-8 - E70, E71, F01, F0...
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Bremmen Parts - Corporate Logo
T#:1195924
Part#: 11157575641
Ships in 1 day
Sale - Save 10% $ 63.23

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

$ 56.91 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 63.23

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

$ 56.91 USD
Free Shipping on orders $49 and up
Replace your damaged crank vent pipe

Bremmen Parts Crankcase Vent Pipe - Cylinders 1-4 - E70, E71, F01, F0...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Bremmen Parts - Corporate Logo
T#:1195923
Part#: 11157575640
Ships on Sep 8, 2026
Sale - Save 7% $ 52.99

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

$ 49.41 USD
Free Shipping on orders $49 and up
Sale - Save 7%
$ 52.99

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

$ 49.41 USD
Free Shipping on orders $49 and up
Replace your damaged crank vent pipe