CCV Oil Separator System for BMW 5 Series E60 (2004-2010)

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BMWs oil separator and crankcase ventilation system is excellent at what it does when properly maintained. Always inspect any visible hoses when you are under the hood and follow the manufacturers replacement schedule.
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E82 135i N54, E9X 335 N54, E60 535 Vargas Upgraded PCV Valve ...
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Vargas Turbo Technologies - Corporate Logo
T#:389684
Part#: VTT-N54-PCV
In Stock
$ 68.99 USD
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The crankcase oil vent system on the N52/N54 is one of its weakest and cheaply designed systems. We see crankcase vent issues on even stock engines but with more boost the problems are exponential. This Vargas upgraded PCV valve, and an oil catch can, are what the N54 engine needs and may alleviate most of your oil and boost leak issues. The PCV valve is supposed to let oil either return to the oil pan or pass through the intake manifold and get burned up in the combustion chamber. However, BMW used a weak plastic vent valve that doesn't seal well when under boost. Instead of  closing and venting the oil out of the intake, it's forced through this valve and into the intake and coating your valves with oil residue and carbon. Most boost equals more oil forcing its way by. This upgraded N54 PCV valve uses higher grade materials, including aluminum, to provide a better seal and prevent oil from entering the intake. It's an easy install and a must-have item when considering any turbo work.
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ECS Tuning N54 PCV Valve Upgraded - BMW N54 3.0L
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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
Free Shipping
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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Universal 10AN ORB To 3/8" Barb
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Radium Engineering - Corporate Logo
T#:31522993
Part#: RAD20-0530
In Stock
$ 37.99 USD
Free Shipping on orders $49 and up

Billet 1/2" Check Valve - N54
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Vargas Turbo Technologies - Corporate Logo
T#:557954
Part#: VTT-CHECK-1
Ships in 2 Business Days
$ 36.99 USD
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$ 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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Flapper Delete Fitting - N54
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Vargas Turbo Technologies - Corporate Logo
T#:557962
Part#: VTT-FLAPPER-DELE
In Stock
$ 57.99 USD
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$ 57.99 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!

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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VTT CNC ORB Plug - -10AN
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Vargas Turbo Technologies - Corporate Logo
T#:642075
Part#: VTT-10ORB
Ships on Jul 23, 2026
$ 23.99 USD
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$ 23.99 USD
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Billet Check Valve - 10 Barb
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Vargas Turbo Technologies - Corporate Logo
T#:597641
Part#: VTT-CHECK-2
Ships on Jul 23, 2026
$ 36.99 USD
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$ 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!
Crankcase Oil Separator and Vent Hose Kit - E90 325xi/330xi, E60 525x...
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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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    FTP Motorsport PCV Valve Upgraded Replacement - N54
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    FTP Motorsport - Corporate Logo
    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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    Upgraded Silicone CCV Hose - (11157522931) - N52
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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
    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 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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    PCV Adapter Fitting N54
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    Vargas Turbo Technologies - Corporate Logo
    T#:557961
    Part#: VTT-PCV-ADAPTER
    Ships on Jul 23, 2026
    $ 145.99 USD
    Free Shipping
    $ 145.99 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!

    This is the adapter fitting that is required to convert your N54 to external PCV if you want to keep your crankcase under vacuum at idle, and anytime you have a vacuum condition in your intake manifold. They are made from 6061-T6 with black anodizing for a long-lasting finish. Includes complete adapter, with all o-rings, and retaining clip.

    This must be used in conjunction with  the Vargas billet check valve, and PCV delete fitting or requires plugging of the intake PCV ports. Installs inline on the throttle body, and adds a -8AN male to adapt to a catch cans, or any custom set up.

    Made from 6061-T6 with black anodizing for a long-lasting finish. Includes complete adapter, with all o-rings, and retaining clip

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

     

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    Crankcase Oil Separator Repair Kit - E60 525i 530i 2004-2005 ...
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    Turner Motorsport - Corporate Logo
    T#:2889
    Part#: 11617533400-E60
    Ships in 3 Business Days
    $ 454.99 USD
    Free Shipping
    $ 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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