CCV Oil Separator System for BMW 3 Series E90 (2006-2011)

Clear BMW chassis

Please ensure your correct model is selected

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.
Sort By:

Genuine BMW - Corporate Logo
T#:30544
Part#: 11110392552
In Stock
2% off MSRP $ 42.99

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

$ 41.99 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 42.99

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

$ 41.99 USD
Free Shipping on orders $49 and up


Genuine BMW Set Of Alu. Screws Crank Case
This item fits the following BMW Chassis:
E82 1M Coupe,E70 X5,E71 X6,E82,E83 X3,E85 Z4,E86 Z4,E89 Z4,E90,E92,E93,F01,F02,F06,F10,F12,F13,F15,F16,F22,F25 X3,F26 X4 X4,F30,F32,F33,F34,F36,F80 M3,F82 M4,F83

Fits BMW Engines including:
N51,N52,N52N,N54,N54T,N55,S55

Show More Show Less
Genuine BMW - Corporate Logo
T#:36640
Part#: 11617836553
In Stock
14% off MSRP $ 63.76

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

$ 55.03 USD
Free Shipping on orders $49 and up
14% off MSRP
$ 63.76

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

$ 55.03 USD
Free Shipping on orders $49 and up
The PCV system removes engine blow-by gases and flushes the crankcase with fresh air. PCV system problems result in numerous and sometimes severe problems including multiple oil leaks, contamination of multiple sensors and catalytic converters, deposit build-up in the air intake passages, and failed emissions tests.
Show More Show Less
Genuine BMW - Corporate Logo
T#:31506
Part#: 11127584128
In Stock
2% off MSRP $ 55.68

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

$ 54.79 USD
Free Shipping on orders $49 and up
2% off MSRP
$ 55.68

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

$ 54.79 USD
Free Shipping on orders $49 and up
Connects to the CCV on the valve cover

MTC - Corporate Logo
T#:556608
Part#: 11618638014
In Stock
$ 39.99 USD
Free Shipping on orders $49 and up
Being not only a connecting piece for the PCV line to the intake manifold but a heating element to prevent blockage it is possible to short out this piece. Easy to replace, prevent damage by getting a new piece today.
Show More Show Less

Crank case vent hose N55 3.0L Engine
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:599676
Part#: 11127584128
In Stock
$ 53.99 USD
Free Shipping on orders $49 and up

Explore the Turner Motorsport Rein Crankcase Vent Hose designed for the N55 3.0L Engine in BMW vehicles. This high-quality vent hose plays a crucial role in maintaining the optimal performance of your BMW's engine. Crafted by Rein, a trusted name in automotive components, this hose ensures efficient ventilation, preventing issues associated with crankcase pressure. Upgrade your BMW's engine system with this vent hose for enhanced performance and longevity.

  • Specifically designed for the N55 3.0L Engine in BMW vehicles.
  • Ensures efficient ventilation for the crankcase.
  • High-quality construction for durability.
  • Prevents issues associated with crankcase pressure.
  • Reliable performance from a trusted brand in automotive components.

Upgrade your BMW's engine with the Turner Motorsport Rein Crankcase Vent Hose for a reliable and efficient solution to crankcase ventilation.

Show More Show Less
Bremmen Parts - Corporate Logo
T#:640159
Part#: 11127584128
In Stock
Sale - Save 20% $ 50.99

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

$ 40.79 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 50.99

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

$ 40.79 USD
Free Shipping on orders $49 and up
Connects to the CCV on the valve cover

URO Parts Crankcase Breather Hose - 11127584128
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:29002180
Part#: 11127584128
In Stock
$ 38.99 USD
Free Shipping on orders $49 and up

This hose connects to the PCV on your vehicle's valve cover. Constructed of brittle plastic, this component is commonly broken. Replace this hose to resolve diagnostic trouble codes or lean/rich running conditions.

Features & Benefits:

Guaranteed fitment Replacement of failed OE hose instantly restores crankcase breather functionality for proper control of hydrocarbon emissions High-quality materials resist cracking and splitting due to engine heat and oil vapor 24-Month Unlimited Mileage Warranty URO Parts offers more than 8,000 high-quality spare parts, many of which are specifically designed to replace factory BMW components. Their business was founded on the premise of producing parts that adhere to the highest standards of precision, materials, and workmanship. Each part is closely evaluated by a team of industry professionals to determine how to offer the best blend of durability, function, and price. If you're looking for quality replacement components at a reasonable price, look no further than URO Parts.

Show More Show Less
Genuine BMW - Corporate Logo
T#:180985
Part#: 11157848155
Ships in 1 day
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
Free Shipping
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.

Oil Separator Valve
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:8677203
Part#: 11617531423
Ships in 1 Business Day
Sale - Save 4% $ 69.99

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

$ 67.20 USD
Free Shipping on orders $49 and up
Sale - Save 4%
$ 69.99

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

$ 67.20 USD
Free Shipping on orders $49 and up

Genuine BMW - Corporate Logo
T#:13027
Part#: 11617531423
Ships in 1 day
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
Free Shipping
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
Show More Show Less
Genuine BMW - Corporate Logo
T#:340670
Part#: 11157848155KT
Ships in 1-2 days
$ 1,085.99 USD
Free Shipping
$ 1,085.99 USD
Free Shipping
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.
Show More Show Less
Oil Separator Valve
5X Entries Into Our F80 M3 Sweepstakes
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:22064583
Part#: AS815M
Ships in 10 Business Days
$ 64.99 USD
Free Shipping on orders $49 and up
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.
Show More Show Less


URO Premium Crank Case Vent Hose - N55
For vehicles without blow by heater
2X Entries Into Our F80 M3 Sweepstakes
URO Premium - Corporate Logo
T#:1918450
Part#: 11127590163
Ships in 1 Business Day
$ 33.99 USD
Free Shipping on orders $49 and up
$ 33.99 USD
Free Shipping on orders $49 and up
This item fits the following BMW Chassis: E82,E90,E92,E93,F06,F15,F16 Fits BMW Engines including: N55
Genuine BMW - Corporate Logo
T#:32283
Part#: 11157567802
Ships in 1 day
2% off MSRP $ 162.99

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

$ 158.99 USD
Free Shipping
2% off MSRP
$ 162.99

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

$ 158.99 USD
Free Shipping


Genuine BMW Return Pipe -
This item fits the following BMW Chassis:
E90

Fits BMW Engines including:
N52

Genuine BMW - Corporate Logo
T#:22213
Part#: 11157567801
Ships in 1-2 days
4% off MSRP $ 184.99

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

$ 176.99 USD
Free Shipping
4% off MSRP
$ 184.99

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

$ 176.99 USD
Free Shipping


Genuine BMW Return Pipe -
This item fits the following BMW Chassis:
E85,E86,E90

Fits BMW Engines including:
N52


Genuine BMW Crank Case Vent Hose
For vehicles without blow by heater
Genuine BMW - Corporate Logo
T#:31524
Part#: 11127590163
Ships in 1 day
4% off MSRP $ 47.99

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

$ 45.99 USD
Free Shipping on orders $49 and up
4% off MSRP
$ 47.99

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

$ 45.99 USD
Free Shipping on orders $49 and up


Genuine BMW Vent Hose -
This item fits the following BMW Chassis:
E82,E90,E92,E93,F06,F15,F16

Fits BMW Engines including:
N55


Genuine BMW Oil Separator Vent Hose
For vehicles with production date from 10/2005
Genuine BMW - Corporate Logo
T#:348665
Part#: 11617559530OE
Ships in 6 Business Days
9% off MSRP $ 77.99

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

$ 70.99 USD
Free Shipping on orders $49 and up
9% off MSRP
$ 77.99

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

$ 70.99 USD
Free Shipping on orders $49 and up
Rein Crank Case Vent Hose
For vehicles without blow by heater
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:17605208
Part#: 11127590163
In Stock
$ 26.47 USD
Free Shipping on orders $49 and up
$ 26.47 USD
Free Shipping on orders $49 and up
Engine Crankcase Breather Hose from Rein is a more affordable option when you're in need. This connects to the ccv on the valve cover.

URO Oil Separator Vent Hose - E90,E91,E60,E62,Z4 N52 (10/2005+) ...
For vehicles with production date from 10/2005
2X Entries Into Our F80 M3 Sweepstakes
URO - Corporate Logo
T#:639498
Part#: 11617559530
Ships in 1 Business Day
$ 28.99 USD
Free Shipping on orders $49 and up
$ 28.99 USD
Free Shipping on orders $49 and up
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. As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
Show More Show Less
Oil Separator Valve
2X Entries Into Our F80 M3 Sweepstakes
Rein - Corporate Logo
T#:594299
Part#: 11617531423
Ships in 3 Business Days
$ 120.81 USD
Free Shipping
$ 120.81 USD
Free Shipping
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.
Show More Show Less

Packaged by Turner - Corporate Logo
T#:221962
Part#: TMS221962
Ships in 1 Business Day
$ 458.99 USD
Free Shipping
$ 458.99 USD
Free Shipping
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
  • 11157567801, 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
  • Show More Show Less

    URO Crankcase Ventilation Return Hose - 11157567802
    2X Entries Into Our F80 M3 Sweepstakes
    URO - Corporate Logo
    T#:26171676
    Part#: 11157567802
    Ships in 1 Business Day
    $ 55.99 USD
    Free Shipping on orders $49 and up

    For your BMW's optimal performance, ensure the functionality of the hose connecting the oil dipstick to the crankcase vent valve. Positioned below the intake manifold, this hose is susceptible to clogging with oil film and condensation, leading to potential failure over time. Cracks and swelling in old hoses can result in oil and vacuum leaks, compromising engine performance.

    • Essential component for BMW engine functionality
    • Prevents clogging and potential hose failure
    • Minimizes oil and vacuum leaks
    • Convenient replacement when replacing crankcase vent valve
    Show More Show Less
    Genuine BMW - Corporate Logo
    T#:376819
    Part#: 11617561408KT2
    Ships in 1-2 days
    $ 225.99

    This product was last offered at the strikethrough price on
    07-06-2026

    $ 222.99 USD
    Free Shipping
    $ 222.99 USD
    Free Shipping
    Febi - Corporate Logo
    T#:56544046
    Part#: 11127584128
    Special Order: No Guaranteed ETA
    New Item
    $ 28.99 USD
    Free Shipping on orders $49 and up
    This replacement Crankcase Breather Hose from Febi Bilstein delivers the exact tolerances and durability required to keep your BMW’s PCV system sealed tight under boost.