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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.

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Turner Motorsport - Corporate Logo
T#:46203574
Part#: 059015LA02
Ships on Aug 17, 2026
Sale - Save 49% $ 59.99

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

$ 30.74 USD
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Sale - Save 49%
$ 59.99

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

$ 30.74 USD
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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 M52/S52 CCV 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 M52 or S52 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 cyclone separator to the valve cover. It replaces OEM part number 11151703775.

Features:

Silicone construction ensures a durable replacement that is sure to outlast OE plastic Designed as a direct replacement for the factory breather hose - not too short like many aftermarket alternatives, and does not require cutting to fit Works seamlessly with the OEM OBDII valve cover and cyclone separator, as well as the Turner Motorsport Billet Aluminum Valve Cover (T#26238386) Design:

Three-ply wire-reinforced fluorosilicone hose is designed to resist degradation due to exposure to oil vapors O-rings are pre-installed in OE Norma connectors for a lasting seal Includes pre-installed 430 stainless steel hose clamps for durability and corrosion-resistance Product Development:

Our Silicone CCV 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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Turner Motorsport - Corporate Logo
T#:46203566
Part#: 018501LA02
Ships in 10 Business Days
Sale - Save 25% $ 101.99

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

$ 76.49 USD
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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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Turner Motorsport - Corporate Logo
T#:221961
Part#: TMS221961
Ships in 3 Business Days
$ 482.99 USD
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$ 482.99 USD
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The BMW N52 engine was deisgned with a crankcase vent system that relies on a heated oil separator valve to separate vapor from the liquid oil. Under ideal circumstances, the oil vapor would pass back into the intake and get burned up during normal combustion. The liquid oil would follow a path back down into the oil pan and be reused. This system is environmentally friendly but plagued with problems. The heating elements can fail or oil and carbon particles can block the oil separator valve. With no escape, the oil will continue to pool and collect in the valve cover or make its way into the combustion chamber leading to excessive oil consumption, blue smoke from the exhaust, idle and running issues. These issues are worse in colder climates where the freezing temperatures create an oil sludge condition that is impossible to clear. The plastic hoses can become brittle and crack which leads to vacuum leaks and oil leaks. Thankfully, the CCV is replaceable on the early N52 engines (2006 and some 2007 models) and should be inspected during a major service and any time the valve cover is off. Oil can also back up into the throttle body, which is easier to check than the oil separator itself. Later N52 engines do not have a serviceable oil vent as it is integrated into the valve cover and not a separate part.

This is a kit containing the oil separator, the vent hoses, and the intake manifold gaskets that are done during a typical oil separator replacement. Complete kit includes:
  • 11617531423, Genuine BMW oil separator
  • 11617559530, vent hose
  • 11157522931, oil separator hose
  • 11157567802, return hose
  • 11157537701, extraction hose
  • 11617547242, intake manifold gaskets (set of 6)
    The intake manifold must be removed to access the oil separator so new profile gaskets are included. We also recommend (but not required) a new oil separator fitting on the intake manifold because it's one of the heated elements that vaporizes the oil as it enters the intake.

    The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

    This kit fits the following BMWs:
    10/2005+ E90 BMW 325xi 330xi - Sedan
    10/2005+ E91 BMW 325xi - Wagon
    10/2005+ E60 BMW 525xi 530xi
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    Turner Motorsport - Corporate Logo
    T#:46203577
    Part#: 058973LA02
    In Stock
    $ 101.99

    This product was last offered at the strikethrough price on
    06-24-2026

    $ 78.99 USD
    Free Shipping
    $ 78.99 USD
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    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 N52 CCV 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 N52 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 oil separator to the valve cover. It replaces OEM part number 11157522931.

    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 CCV 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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    Turner Motorsport - Corporate Logo
    T#:2889
    Part#: 11617533400-E60
    Ships in 3 Business Days
    $ 454.99 USD
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    $ 454.99 USD
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    This Crankcase Vent / Oil Separator Repair Kit includes the updated oil separator valve, oil dipstick guide tube and hoses. The kit includes:
    1 x 11617533400 - Oil Separator Valve
    1 x 11437565440 - Dip Stick Guide Tube
    1 x 11617533398 - Hose from Valve to Valve Cover
    1 x 11617533399 - Hose from Valve to Intake Manifold
    1 x 11157532629 - Hose from Vent Valve to Dipstick1 x 11431740045 - O-ring for Dip Stick Guide Tube


    This item fits the following BMWs:
    2004-2005 E60 BMW 525i 530i
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    Turner Motorsport - Corporate Logo
    T#:2898
    Part#: 11617533400-E83
    Ships in 3 Business Days
    $ 400.21 USD
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    $ 400.21 USD
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    This Crankcase Vent / Oil Separator Repair Kit includes the updated oil separator valve, oil dipstick guide tube and hoses. Suitable for cold weather applications. This kit fits E83 X3 2.5i X3 3.0i 2004-2006.

    This item fits the following BMWs:
    2004-2006 E83 BMW X3 2.5i X3 3.0i
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    Turner Motorsport - Corporate Logo
    T#:2895
    Part#: 11617533400-E85
    Ships in 3 Business Days
    Sale - Save 5% $ 406.99

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

    $ 386.64 USD
    Free Shipping
    Sale - Save 5%
    $ 406.99

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

    $ 386.64 USD
    Free Shipping
    This Crankcase Vent / Oil Separator Repair Kit includes the updated oil separator valve, oil dipstick guide tube and hoses. This kit fits E85 Z4 2.5i Z4 3.0i 2003-2005.

    This item fits the following BMWs:
    2003-2006 E85 BMW Z4 2.5i Z4 3.0i
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    Turner Motorsport - Corporate Logo
    T#:46203579
    Part#: 058981LA02
    In Stock
    $ 101.99

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

    $ 59.99 USD
    Free Shipping
    $ 59.99 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.

    Upgrade your N52 CCV system with this durable silicone oil separator 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 from Turner Motorsport, you'll experience peace of mind knowing your N52 is free from the inevitable return of oil leaks, vacuum leaks, and drivability concerns that would have been.

    This hose is located underneath the intake manifold and is used to connect the oil separator to the induction tract. It replaces OEM part number 11617559530.

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    Genuine BMW - Corporate Logo
    T#:206316
    Part#: 11127850244
    In Stock
    4% off MSRP $ 162.92

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

    $ 156.95 USD
    Free Shipping
    4% off MSRP
    $ 162.92

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

    $ 156.95 USD
    Free Shipping
    Replacement CCV vent hose. These tend to crack or split as they age causing a vacuum leak.

    Packaged by Turner - Corporate Logo
    T#:557341
    Part#: 11111318185TMSKT
    In Stock
    Sale - Save 2% $ 85.93

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

    $ 84.32 USD
    Free Shipping
    Sale - Save 2%
    $ 85.93

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

    $ 84.32 USD
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    When your CPV O-ring fails it causes a slow oil leak on the passenger side of the engine, making an oily mess that frequently resembles a rear main seal leak. Replacing the CPV with an upgraded o-ring ensures a long-term solution to this common problem. 

    The factory o-ring over time fails from heat cycling and oil exposure due to the Buna rubber used in OEM o-rings, while the included Viton Fluoroelastomer is resistant to a much higher temperature to ensure prolonged life without leaking. 

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    URO PCV Breather Hose Kit - E39, E46, E83
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:592719
    Part#: BMM54PCVKIT
    In Stock
    $ 117.99 USD
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    $ 117.99 USD
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    Comes with everything needed to refresh the PCV System!
    Vargas Turbo Technologies - Corporate Logo
    T#:4813265
    Part#: VTT-B58-PCV-CAP
    Back Ordered
    $ 149.99 USD
    Free Shipping
    $ 149.99 USD
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    Vargas has developed a solution to problematic PCV systems! Stock diaphragms on the gen-1 B58 Valve cover are fragile and can crack or tear over time. This can cause loss of crankcase vacuum and smoking. The VTT PCV cap replaces the factory plastic cap with a billet aluminum piece which uses a Billet Banjo fitting, and VTT's Vaccum/Boost adapter to move vacuum directly from the head ports to the manifold. This cap will also allow you to run a catch can on the low side if desired. VTT Recommends using this cap alongside their High Side Catch Can and crankcase breather for maximum efficiency. Installation is as simple as popping the stock cap off, removing the diaphragm, and placing the VTT components in place. Kit Includes: One Billet PCV Cap One Billet Banjo Fitting One Vaccum/Boost adapter One line with built-in check valve
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    Genuine BMW - Corporate Logo
    T#:14624
    Part#: 11617831930
    In Stock
    2% off MSRP $ 127.99

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

    $ 124.99 USD
    Free Shipping
    2% off MSRP
    $ 127.99

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

    $ 124.99 USD
    Free Shipping

    Vents gases from the crankcase back into 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 Vent Hose
    This item fits the following BMW Chassis:
    E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

    Fits BMW Engines including:
    S54
     

     

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    Rein Crankcase Ventilation Return Pipe - E60, E90, Z4
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:402081
    Part#: 11157567801
    In Stock at Vendor
    $ 81.20 USD
    Free Shipping
    $ 81.20 USD
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    Located under intake manifold
    Genuine BMW - Corporate Logo
    T#:376859
    Part#: 11151703484KT1
    Ships in 3 Business Days
    $ 188.99 USD
    Free Shipping
    $ 188.99 USD
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    The plastic 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:
    1996-1999 E36 BMW 323is/ic 328i/is/ic M3
    1996-08/1998 E39 BMW 528i
    1996-2000 Z3 BMW with M52/S52

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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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    Bremmen Parts - Corporate Logo
    T#:641646
    Part#: 11617501566S1
    In Stock
    Sale - Save 15% $ 95.99

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

    $ 81.59 USD
    Free Shipping
    Sale - Save 15%
    $ 95.99

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

    $ 81.59 USD
    Free Shipping
    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 all the components of the oil separator system together to prevent damage to all the aspects of your engine. Level 1 kit includes the following; Oil separator Hose from oil separator to dipstick tube Hose from oil separator to valve cover Hose from intake manifold back to the connector hose Hose from oil separator up to the intake manifold
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    Genuine BMW - Corporate Logo
    T#:32279
    Part#: 11157559528
    In Stock
    5% off MSRP $ 108.99

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

    $ 103.99 USD
    Free Shipping
    5% off MSRP
    $ 108.99

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

    $ 103.99 USD
    Free Shipping
    This valve cover vent hose helps to vent the crankcase fumes on BMW's with the N51 / N52 6 cylinder engines. If replacing the the valve cover we recommend purchasing this item as well as it often will break while removing it from the valve cover.

    This item fits the following BMWs:
    2008-2013 E82 BMW 128i
    2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi - Sedan
    2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
    2007-2013 E92 BMW 328i 328xi 328i xDrive - Coupe
    2007-2013 E93 BMW 328i - Convertible
    2004-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive
    2006-2010 E83 BMW X3 3.0i X3 3.0si
    2007-2013 E70 BMW X5 3.0si X5 xDrive30i
    2006-2008 E85 BMW Z4 3.0i Z4 3.0si
    2009+ E89 BMW Z4 sDrive30i
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    Genuine BMW - Corporate Logo
    T#:174248
    Part#: 11157646086
    Ships in 3 Business Days
    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#:180985
    Part#: 11157848155
    Ships in 3 Business Days
    2% off MSRP $ 479.99

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

    $ 469.99 USD
    Free Shipping
    2% off MSRP
    $ 479.99

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

    $ 469.99 USD
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    This is a genuine BMW replacement crankcase pressure regulator valve that is attached to the top of the valve covers. This is often also referred to as an oil separator.

    Genuine BMW - Corporate Logo
    T#:12551
    Part#: 11617501563
    In Stock
    1% 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.

    $ 105.99 USD
    Free Shipping
    1% 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.

    $ 105.99 USD
    Free Shipping
    An integral part of the emissions system, the PCV valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. When the crankcase vent valve fails it can cause excessive oil consumption, engine fault codes, and poor idle.
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    Crankcase Ventilation Hose Kit M54 Engine
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:379190
    Part#: 11617504535K
    Back Ordered
    $ 79.99 USD
    Free Shipping
    $ 79.99 USD
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    Turner Motorsport presents the Crankcase Ventilation System Refresh Kit for BMW owners experiencing malfunctioning or aged CCV systems. This comprehensive kit includes all necessary hoses to complete a refresh, ensuring optimal performance and reliability for your BMW's CCV system.

    • Addresses malfunctioning CCV systems
    • Ensures proper ventilation of the crankcase
    • Comprehensive kit includes all necessary hoses
    • Restores performance and reliability
    • Compatible with various BMW models
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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
    In Stock
    3% 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.

    $ 500.99 USD
    Free Shipping
    3% 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.

    $ 500.99 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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    URO Oil Separator Valve - BMW E60 E90 Z4 N52
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:592960
    Part#: 11617531423
    In Stock
    $ 57.12 USD
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    $ 57.12 USD
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    he 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.
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    Genuine BMW - Corporate Logo
    T#:6617
    Part#: 11127547058
    In Stock at Vendor
    $ 253.99

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

    $ 200.99 USD
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    $ 200.99 USD
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    Genuine BMW Repair Kit, Pressure Regulating Valve
    This item fits the following BMW Chassis:
    E53 48IS,E53 X5,E63,E65,E70 X5 X5

    Fits BMW Engines including:
    N62,N62N

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    BMW N63 4.4L Vent Pipe - Each
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    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
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    $ 171.99 USD
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    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#:19248
    Part#: 11617501562
    Ships in 3 Business Days
    3% off MSRP $ 87.99

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

    $ 84.99 USD
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    3% off MSRP
    $ 87.99

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

    $ 84.99 USD
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    Genuine BMW ENGINE COVER WITH NON-RETURNVALVE

    Genuine BMW - Corporate Logo
    T#:340670
    Part#: 11157848155KT
    Ships in 3 Business Days
    $ 1,085.99 USD
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    $ 1,085.99 USD
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    The crankcase breather, or also commonly called the PCV or oil separator, allows the crankcase to expel air without losing any oil. When failing, the PCV can cause misfires and a rough running commonly experienced at idle. This kit allows you to service your breather system and keep your vehicle's emissions system in top shape and running great.
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    Genuine BMW - Corporate Logo
    T#:219746
    Part#: 11158601619
    Ships in 3 Business Days
    4% off MSRP $ 394.99

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

    $ 377.99 USD
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    4% off MSRP
    $ 394.99

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

    $ 377.99 USD
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    ​BMW part number 11158601619 is a genuine OEM crankcase ventilation intake pipe designed for specific BMW models. This component is integral to the engine's positive crankcase ventilation (PCV) system, directing blow-by gases from the crankcase back into the intake manifold for combustion. This process reduces emissions and helps maintain engine efficiency.​ Compatible BMW Models: BMW 750i (G12): 2016–2019​ BMW 750i xDrive (G12): 2016–2019​ BMW M550i xDrive (G30): 2018–2019
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    ECS - Corporate Logo
    T#:4154602
    Part#: 090745ECS09
    Back Ordered
    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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    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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    Genuine BMW - Corporate Logo
    T#:36140
    Part#: 11537806706
    In Stock
    4% off MSRP $ 255.99

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

    $ 244.99 USD
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    4% off MSRP
    $ 255.99

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

    $ 244.99 USD
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    Genuine BMW Return Pipe -
    This item fits the following BMW Chassis:
    E70 X5

    Fits BMW Engines including:
    M57


    Genuine BMW - Corporate Logo
    T#:2811
    Part#: 11617501563K
    In Stock
    $ 117.99 USD
    Free Shipping
    $ 117.99 USD
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    When the crankcase vent valve fails it can cause excessive oil consumption, engine fault codes and poor idle. This crankcase vent valve ( also know as Oil separator valve or PCV ) fits E39 540i 97-03 E38 740i 96-01 E31 840ci 96-98.

    This kit includes the following parts:
    1 x 11617501563 - Intake Manifold Rear Cover with Oil Separator Valve
    1 X Rear Intake Manifold Gasket

    This item fits the following BMWs:
    1997-2003 E39 BMW 540i
    1996-2001 E38 BMW 740i 740il
    1996-1998 E31 BMW 840ci
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    Genuine BMW - Corporate Logo
    T#:62439
    Part#: 34302283606
    In Stock
    14% off MSRP $ 91.99

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

    $ 82.99 USD
    Limited Qty Sale
    Free Shipping
    14% off MSRP
    $ 91.99

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

    $ 82.99 USD
    Limited Qty Sale
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    Genuine BMW Vacuum Pipe -
    This item fits the following BMW Chassis:
    E90,E92,E93

    Packaged by Turner - Corporate Logo
    T#:555298
    Part#: 11617501566KT6
    In Stock
    Sale - Save 19% $ 181.99

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

    $ 147.02 USD
    Free Shipping
    Sale - Save 19%
    $ 181.99

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

    $ 147.02 USD
    Free Shipping

    The plastic 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:
    2000-2003 E39 BMW 530i

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    Vargas Turbo Technologies - Corporate Logo
    T#:557954
    Part#: VTT-CHECK-1
    Ships in 1 Business Day
    $ 36.99 USD
    Free Shipping
    $ 36.99 USD
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    Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

    This is a 1/2" (fits -8AN hos perfectly as well) CNC Billet check valve that can be used for a variety of uses including a vacuum/boost check valve when removing the stock PCV system, and still wanting to run the vacuum to the crankcase. Rated at over 100 psi, with a cracking psi of .25psi.

    This part fits the following BMW engines:
    2006-2012 N54

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    Genuine BMW - Corporate Logo
    T#:36551
    Part#: 11617563477
    In Stock at Vendor
    9% off MSRP $ 269.99

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

    $ 246.99 USD
    Free Shipping
    9% off MSRP
    $ 269.99

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

    $ 246.99 USD
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    Guides crankcase gases 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 Vent Pipe -
    This item fits the following BMW Chassis:
    E63,E65,E70 X5

    Fits BMW Engines including:
    N62N
     

     

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    "Cold Climate" Oil Separator Kit
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    URO - Corporate Logo
    T#:377838
    Part#: 11617534237
    Ships in 1 Business Day
    $ 74.99 USD
    Free Shipping
    $ 74.99 USD
    Free Shipping
    URO Parts is one of the leading manufacturers of high quality direct replacement aftermarket components, covering a wide range of makes and models. All of their replacement parts are manufactured to ISO 9000 certification standards, so you can expect long lasting performance from URO Parts.
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    Rein Crankcase Ventilation Hose - E60, E61, E90, E91
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:591594
    Part#: 11157567802
    Ships in 3 Business Days
    $ 74.99 USD
    Free Shipping
    $ 74.99 USD
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    From oil separator to oil pan vent tube

    Vargas Turbo Technologies - Corporate Logo
    T#:557962
    Part#: VTT-FLAPPER-DELE
    In Stock
    $ 57.99 USD
    Free Shipping
    $ 57.99 USD
    Free Shipping

    Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

    The VTT PCV Flapper delete is used to get rid of the factory flapper, and add a -10 fitting on N54 powered vehicles. This will allow you to run a single or dual external catch can, or your own custom set up.

    This fitting is made from 6061-T6 aircraft aluminum anodized black and comes with O-ring, and a stainless steel holding clip.

    This part fits the following BMW engines:
    2006-2012 N54

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    Vargas Turbo Technologies - Corporate Logo
    T#:642075
    Part#: VTT-10ORB
    Ships in 10 Business Days
    $ 23.99 USD
    Free Shipping
    $ 23.99 USD
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    Vargas Turbo Technologies - Corporate Logo
    T#:597641
    Part#: VTT-CHECK-2
    Ships in 2 Business Days
    $ 36.99 USD
    Free Shipping
    $ 36.99 USD
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    Vargas Turbo has you covered when you are installing a custom turbo setup. With all of the adapters you need and all the valves necessary, the only real limiting factor is your imagination!

    Genuine BMW - Corporate Logo
    T#:367709
    Part#: 11617501566
    Ships in 3 Business Days
    6% 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.

    $ 96.99 USD
    Free Shipping
    6% 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.

    $ 96.99 USD
    Free Shipping
    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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    OEM Rein CCV Hose - E60/1/3/4/5/6 E70 N62
    2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
    Rein - Corporate Logo
    T#:402019
    Part#: 11617563477
    Ships in 1 day
    $ 104.99 USD
    Free Shipping
    $ 104.99 USD
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    Is your Crankcase Ventilation system malfunctioning? Or maybe it's just time to refresh the system? This part is the necessary hose to refresh your CCV system.

    Genuine BMW - Corporate Logo
    T#:219749
    Part#: 11158647961
    Ships in 3 Business Days
    5% off MSRP $ 417.99

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

    $ 399.00 USD
    Free Shipping
    5% off MSRP
    $ 417.99

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

    $ 399.00 USD
    Free Shipping
    Genuine BMW Vent Pipe - 11158647961

    Genuine BMW - Corporate Logo
    T#:13027
    Part#: 11617531423
    Ships in 3 Business Days
    6% off MSRP $ 148.99

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

    $ 139.99 USD
    Free Shipping
    6% off MSRP
    $ 148.99

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

    $ 139.99 USD
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    The BMW N52 engine was deisgned with a crankcase vent system that relies on a heated oil separator valve to separate vapor from the liquid oil. Under ideal circumstances, the oil vapor would pass back into the intake and get burned up during normal combustion. The liquid oil would follow a path back down into the oil pan and be reused. This system is environmentally friendly but plagued with problems. The heating elements can fail or solid oil and carbon particles can block the oil separator valve. With no escape, the oil will continue to pool and collect in the valve cover or make its way into the combustion chamber leading to excessive oil consumption, blue smoke from the exhaust, idle and running issues. These issues are worse in colder climates where the freezing temperatures create a oil sludge condition that is impossible to clear. Thankfully, the CCV is replaceable on the early N52 engines (2006) and should be inspected during a major service and any time the valve cover is off. Oil can also back up into the throttle body, which is easier to check than the oil separator itself. Later N52 engines do not have a serviceable oil vent as it is integrated into the valve cover and not a separate part.

    The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

    This item fits the following BMWs:
    2006-2011 E90 BMW 325i 325xi 330i 330xi - Sedan
    2006-2012 E91 BMW 325xi - Wagon
    2006-2007 E60 BMW 525i 525xi 530i 530xi
    2006-2008 E85 BMW Z4 3.0i Z4 3.0si
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    Genuine BMW - Corporate Logo
    T#:534992
    Part#: 11158661697
    Ships in 3 Business 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
    Free Shipping
    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
    Free Shipping
    Genuine BMW - Corporate Logo
    T#:19249
    Part#: 11617508541
    Ships in 3 Business 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
    Free Shipping
    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
    Free Shipping


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

    Fits BMW Engines including:
    M62



    Genuine BMW - Corporate Logo
    T#:216970
    Part#: 11158647298
    Ships in 3 Business Days
    4% off MSRP $ 223.99

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

    $ 213.99 USD
    Free Shipping
    4% off MSRP
    $ 223.99

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

    $ 213.99 USD
    Free Shipping
    Genuine Bmw Connecting Line - 11158647298
    Genuine BMW - Corporate Logo
    T#:377891
    Part#: 11617501563KT1
    In Stock
    $ 144.99

    This product was last offered at the strikethrough price on
    03-04-2026

    $ 137.99 USD
    Free Shipping
    $ 137.99 USD
    Free Shipping