Oil Separation & Breather System for BMW 5 Series F10 (2011-2016)

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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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Upgraded Silicone PCV Hose - (11127588417) - N20/N26
10X Entries Into Our F80 M3 Sweepstakes
Turner Motorsport - Corporate Logo
T#:46203566
Part#: 018501LA02
In Stock
Sale - Save 25% $ 101.99

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

$ 76.49 USD
Free Shipping
Sale - Save 25%
$ 101.99

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

$ 76.49 USD
Free Shipping

Due to weak plastic construction, the factory plastic crankcase ventilation breather hose is known to fail. After years of exposure to piping-hot engine bay temperatures and chemical-laden oil vapors, the corrugated plastic tubing can crack, crumble, or fail altogether.

We set out to bulletproof your N20 PCV system with a durable silicone breather hose, designed to provide a comprehensive upgrade and permanent replacement for the factory plastic hose. By replacing the flimsy, heat-hardened OEM plastic hose with a four-ply fluorosilicone hose, you'll experience peace of mind knowing your N20 is free from the inevitable return of oil leaks, vacuum leaks, and drivability concerns that would have been.

This breather hose is found at the front of the engine, and is used to connect the inlet pipe to the valve cover. It replaces OEM part number 11127588417.

Features:

Silicone construction ensures a durable replacement that is sure to outlast OE plastic
Designed as a direct replacement for the factory breather hose
Retains heating function and OE electrical connector
Design:

Four-ply wire-reinforced fluorosilicone hose is designed to resist degradation due to exposure to oil vapors
O-rings are pre-installed in OE connectors for a lasting seal
Includes pre-installed zinc-coated hose clamps for durability and corrosion resistance
Product Development:

Our Silicone PCV Hose Upgrade was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modelling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

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Genuine BMW - Corporate Logo
T#:174249
Part#: 11157646087
In Stock
13% off MSRP $ 127.09

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

$ 110.00 USD
Free Shipping
13% off MSRP
$ 127.09

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

$ 110.00 USD
Free Shipping

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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BMW N63 4.4L Vent Pipe - Each
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:7244416
Part#: 11158647961
In Stock
$ 327.99

This product was last offered at the strikethrough price on
05-04-2026

$ 171.99 USD
Free Shipping
$ 171.99 USD
Free Shipping

BMW N63 4.4L Vent Pipe

The BMW N63 4.4L Vent Pipe addresses common issues with oil separators freezing in cold weather conditions. This problem often occurs if the vehicle is driven before it is fully warmed up, leading to a howling noise and multiple oil leaks. The crankcase breather valve in the vent pipe purges oil vapor from the engine block into the valve cover. However, condensation can sometimes cause the valve to freeze, which may result in the oil separator system failing, cracking, or disintegrating. This replacement vent pipe ensures proper function and prevents costly damage by maintaining the integrity of the oil separator system.

Benefits:

  • Prevents Freezing Issues: Reduces the risk of oil separator failure in cold weather conditions.
  • Eliminates Oil Leaks: Helps prevent leaks caused by frozen oil separators.
  • Ensures Proper Ventilation: Maintains effective purging of oil vapor from the engine block.
  • Durable Construction: Built to withstand harsh weather conditions and engine stress.
  • Direct Replacement: Designed to fit seamlessly with BMW N63 4.4L engines.
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Genuine BMW - Corporate Logo
T#:174248
Part#: 11157646086
Ships in 1 day
13% off MSRP $ 127.09

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

$ 110.00 USD
Free Shipping
13% off MSRP
$ 127.09

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

$ 110.00 USD
Free Shipping

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 serve. With more than 34,000 repair solutions for cars and commercial vehicles, you can be sure Febi has you covered.


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

Fits BMW Engines including:
N63
 

 

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Genuine BMW - Corporate Logo
T#:216971
Part#: 11158647299
In Stock
10% off MSRP $ 208.99

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

$ 191.99 USD
Limited Qty Sale
Free Shipping
10% off MSRP
$ 208.99

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

$ 191.99 USD
Limited Qty Sale
Free Shipping
Genuine Bmw Connecting Line - 11158647299
Genuine BMW - Corporate Logo
T#:528933
Part#: 11158636541
Ships in 1-2 days
6% off MSRP $ 515.99

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

$ 485.99 USD
Free Shipping
6% off MSRP
$ 515.99

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

$ 485.99 USD
Free Shipping
### **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#:219749
Part#: 11158647961
Ships in 1-2 days
5% off MSRP $ 477.99

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

$ 455.99 USD
Free Shipping
5% off MSRP
$ 477.99

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

$ 455.99 USD
Free Shipping
Genuine BMW Vent Pipe - 11158647961