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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Bremmen Parts - Corporate Logo
T#:640154
Part#: 11157646086
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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, Bremmen pipes are a perfect replacement to restore a tight seal and prevent any check engine codes.
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T#:174249
Part#: 11157646087
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Directs the gases from the PCV system back to the intake.
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.


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

Fits BMW Engines including:
N63

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Bremmen Parts - Corporate Logo
T#:640153
Part#: 11157646087
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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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Genuine BMW - Corporate Logo
T#:216971
Part#: 11158647299
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Genuine Bmw Connecting Line - 11158647299

Genuine BMW - Corporate Logo
T#:177043
Part#: 11157843151
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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 - Corporate Logo
T#:37159
Part#: 11667575774
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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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T#:32308
Part#: 11157843150
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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 - Corporate Logo
T#:528933
Part#: 11158636541
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### **Genuine BMW Oil Separator & Seal Kit – Overview** The **Genuine BMW Oil Separator & Seal Kit** is a crucial OEM component designed to optimize engine performance by regulating crankcase ventilation and minimizing oil buildup in the intake system. ### **Key Features:** - **OEM Precision:** Direct-fit replacement, ensuring compatibility and reliability for BMW engines - **Crankcase Ventilation Management:** Prevents excessive oil vapors from entering the intake, reducing carbon deposits - **High Durability:** Constructed from premium materials to withstand high temperatures and pressure - **Complete Kit:** Includes necessary seals and gaskets to ensure a secure, leak-free installation ### **Benefits:** - Prevents oil consumption and sludge accumulation - Enhances engine efficiency and longevity - Reduces emissions by effectively controlling oil vapor circulation Ideal for **routine maintenance** or **replacing a worn PCV system**, this kit helps keep your BMW running at peak performance. Need assistance finding the right part number for your specific model?
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Genuine BMW - Corporate Logo
T#:32285
Part#: 11157575640
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$ 69.99 USD
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$ 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 - Zyl 1-4
This item fits the following BMW Chassis:
E71,F01,F02,F10,F12,F13

Fits BMW Engines including:
N63


Genuine BMW - Corporate Logo
T#:37048
Part#: 11657612158
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$ 42.99 USD
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$ 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 -
This item fits the following BMW Chassis:
E71,F01,F02,F06,F10,F12,F13

Fits BMW Engines including:
N63,N63N

Genuine BMW - Corporate Logo
T#:32286
Part#: 11157575641
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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 58.99 USD
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$ 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
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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 - Corporate Logo
T#:219749
Part#: 11158647961
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Genuine BMW Vent Pipe - 11158647961


Bremmen Parts - Corporate Logo
T#:35357263
Part#: 11157843150
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$ 60.99

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$ 44.99 USD
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$ 60.99

This product was last offered at the strikethrough price on
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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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Bremmen Parts - Corporate Logo
T#:1195924
Part#: 11157575641
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$ 56.91 USD
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This product was last offered at the strikethrough price on
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Replace your damaged crank vent pipe
Bremmen Parts - Corporate Logo
T#:1195923
Part#: 11157575640
Ships on Aug 11, 2026
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$ 49.41 USD
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This product was last offered at the strikethrough price on
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$ 49.41 USD
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Replace your damaged crank vent pipe

Bremmen Parts - Corporate Logo
T#:53326230
Part#: 11158647299
Ships on Aug 11, 2026
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Sale - Save 20% $ 80.99

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This product was last offered at the strikethrough price on
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$ 64.79 USD