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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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VTT Gen-1 PCV CAP - B58
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Vargas Turbo Technologies - Corporate Logo
T#:4813265
Part#: VTT-B58-PCV-CAP
In Stock
$ 149.99 USD
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$ 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 MINI Suction Jet Pump W/ Lines
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Genuine MINI - Corporate Logo
T#:14638
Part#: 11667550007
Ships in 4 Business Days
7% off MSRP $ 159.99

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

$ 148.99 USD
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7% off MSRP
$ 159.99

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

$ 148.99 USD
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Genuine MINI SUCKING JET PUMP WITH LINES
Fits BMW Engines including:
W11

Genuine BMW Vent Hose - E46 325Ci, E46 325i
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Genuine BMW - Corporate Logo
T#:32270
Part#: 11157513756
Ships in 1 day
Sale - Save 16% $ 177.99

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

$ 148.91 USD
Free Shipping on orders $49 and up
Sale - Save 16%
$ 177.99

This product was last offered at the strikethrough price on
05-14-2026

$ 148.91 USD
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Genuine BMW Vent Hose -
This item fits the following BMW Chassis:
E46

Fits BMW Engines including:
M56


Turner Oil Separator Kit - E39 M54
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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
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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:
2000-2003 E39 BMW 530i

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PCV Adapter Fitting N54
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Vargas Turbo Technologies - Corporate Logo
T#:557961
Part#: VTT-PCV-ADAPTER
Ships in 10 Business Days
$ 145.99 USD
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$ 145.99 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 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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AN CSL Crankcase Vent Hose - (00-04.5)
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Turner Motorsport - Corporate Logo
T#:16907195
Part#: 043464LA02
In Stock
Sale - Save 20% $ 178.99

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

$ 143.19 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 178.99

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

$ 143.19 USD
Free Shipping on orders $49 and up

A combination of billet fittings and AN lines for an upgraded and serviceable crankcase vent hose. Attaches between the oil separator and the CSL air box.

The factory rubber/plastic hoses become brittle and crack over time. Brittle and cracked hoses can cause multiple vacuum leaks that are impossible to repair without hose replacement. Vacuum leaks can cause many problems including rough running, missing, stalling at idle, and even a no-start condition. The factory hoses offered through BMW are plastic and will yield the same results of becoming brittle and damaged over time.

We have created a full motorsport style solution with our CSL Crankcase made from machined 6061 billet aluminum with AN style fittings and nylon fiber braided lines. This is a fully serviceable replacement that will outlast every one of the OEM replacements. Our AN crankcase line can be used to replace the factory brittle hose to ensure your S54 is free from vacuum leaks and performing properly.

OEM CSL Vent Hose (11157833649) - Direct Replacement

Key benefits:

Lifetime replacement of the brittle OEM plastic crankcase breather hose
Fully Serviceable
Motorsport Aesthetic to compliment your CSL Intake Plenum
Design:

Fittings are made from billet 6061-T6 aluminum and finished in Type II black anodizing
Pre-anodized machined Turner branding
Nylon fiber braided lines
Fittings are a direct replacement for the plastic OEM fittings

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CSL Crankcase Vent Hose - AN Lines and Fittings (04.5-06)
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Turner Motorsport - Corporate Logo
T#:17405917
Part#: 043464LA03
In Stock
Sale - Save 20% $ 177.99

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

$ 142.39 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 177.99

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

$ 142.39 USD
Free Shipping on orders $49 and up

A combination of billet fittings and AN lines for an upgraded and serviceable crankcase vent hose. Attaches between the oil separator and the CSL air box.

The factory rubber/plastic hoses become brittle and crack over time. Brittle and cracked hoses can cause multiple vacuum leaks that are impossible to repair without hose replacement. Vacuum leaks can cause many problems including rough running, missing, stalling at idle, and even a no-start condition. The factory hoses offered by BMW are plastic and will yield the same results of becoming brittle and damaged over time.

We have created a full motorsport-style solution with our CSL Crankcase made from machined 6061 billet aluminum with AN-style fittings and nylon fiber braided lines. This is a fully serviceable replacement that will outlast every one of the OEM replacements. Our AN crankcase line can be used to replace the factory brittle hose to ensure your S54 is free from vacuum leaks and performing properly.

OEM CSL Vent Hose (11157833649) - Direct Replacement for cars with secondary shut-off valve. (11157834056)

Key benefits:

Lifetime replacement of the brittle OEM plastic crankcase breather hose
Fully Serviceable
Motorsport Aesthetic to compliment your CSL Intake Plenum
Design:

Fittings are made from billet 6061-T6 aluminum and finished in Type II black anodizing
Pre-anodized machined Turner branding
Nylon fiber braided lines
Fittings are a direct replacement for the plastic OEM fittings
Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.

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Crankcase Oil Separator - E90 325i/330i, E60 525i/530i, E85 Z4 3.0i/3...
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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
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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 Crank Case Vent Valve Kit - E31 840Ci, E38 740i/iL, E39 5...
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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
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$ 137.99 USD
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Engine Oil Separator Package - Level 2 - E46 325, E39 525i M54 ...
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Packaged by Turner - Corporate Logo
T#:24344785
Part#: M54OILSEPKT
In Stock
Sale - Save 23% $ 173.99

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

$ 133.54 USD
Free Shipping on orders $49 and up
Sale - Save 23%
$ 173.99

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

$ 133.54 USD
Free Shipping on orders $49 and up
If you need to perform a complete oil separator system service, this Level 2 kit provides you with all of the main components necessary to service your engine oil separator system. This Level 2 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 Throttle body gasket Throttle body inlet boot ICV rubber grommet Oil dipstick tube o-ring seal It is highly recommended to replace the oil dipstick tube with the updated design by BMW as this also a common place for sludge to build up.
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Genuine BMW Crankcase Ventilation Hose - Cylinders 1-4
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Genuine BMW - Corporate Logo
T#:36550
Part#: 11617563476
Ships in 1 day
4% off MSRP $ 136.99

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

$ 130.99 USD
Free Shipping
4% off MSRP
$ 136.99

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

$ 130.99 USD
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Genuine BMW Vent Pipe - Zyl. 1-4
This item fits the following BMW Chassis:
E53 48IS,E53 X5,E63,E65

Fits BMW Engines including:
N62

Crankcase Oil Separator Hose - E9x, E60, E85 with N52 engine ...
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Genuine BMW - Corporate Logo
T#:20631
Part#: 11157522931
In Stock
21% off MSRP $ 154.99

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

$ 125.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
21% off MSRP
$ 154.99

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

$ 125.99 USD
Limited Qty Sale
Free Shipping on orders $49 and up
This is the oil separator hose that connects the crank case oil separator to the oil sump pipe for BMW's with the N52 6 cylinder engine.
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.

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 E85 BMW Z4 3.0i Z4 3.0si
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Genuine BMW Vent Hose - 11617831930 - E46,E85,E46 M3,E85 Z4M ...
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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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Oil Separator Valve
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Rein - Corporate Logo
T#:594299
Part#: 11617531423
Ships in 3 Business Days
$ 120.81 USD
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$ 120.81 USD
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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.
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Return Line - E70
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Genuine BMW - Corporate Logo
T#:36013
Part#: 11537547171
Ships in 1 day
6% off MSRP $ 126.99

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

$ 119.99 USD
Free Shipping
6% off MSRP
$ 126.99

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

$ 119.99 USD
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Genuine BMW Return Pipe, Heater -
This item fits the following BMW Chassis:
E70 X5

Fits BMW Engines including:
N62N


Breather Covering Rear - E30
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Genuine BMW - Corporate Logo
T#:151009
Part#: 64221972010
Ships in 7 Business Days
3% off MSRP $ 121.99

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

$ 117.99 USD
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3% off MSRP
$ 121.99

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

$ 117.99 USD
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Genuine BMW Breather Covering Rear
This item fits the following BMW Chassis:
E30 M3,E30


URO PCV Breather Hose Kit - E39, E46, E83
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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!
Genuine BMW Crankcase Vent Valve - E39 540i - E38 740i 740il 96-01 - ...
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Genuine BMW - Corporate Logo
T#:2811
Part#: 11617501563K
In Stock
$ 117.99 USD
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$ 117.99 USD
Free Shipping
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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Vacuum Pipe - E70, E71, F15, F16, F85, F86
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Genuine BMW - Corporate Logo
T#:37151
Part#: 11667564502
Ships in 4 Business Days
5% off MSRP $ 121.99

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

$ 115.99 USD
Free Shipping
5% off MSRP
$ 121.99

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

$ 115.99 USD
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Genuine BMW Vacuum Pipe
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5 X5,E71 X6,F15,F16

Fits BMW Engines including:
N51,N63,N63N,S63

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Genuine BMW Crankcase Ventilation Connecting Line - 11157646087 ...
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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
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Directs the gases from the PCV system back to the intake.
When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.


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

Fits BMW Engines including:
N63

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Genuine BMW Connecting Line - 11157646086
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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 Vent Hose Zyl. 5-8 - 11157843151 - F06,F10,F12,F13 ...
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Genuine BMW - Corporate Logo
T#:177043
Part#: 11157843151
In Stock
$ 108.59 USD
Free Shipping on orders $49 and up


Genuine BMW Vent Hose - Zyl. 5-8
This item fits the following BMW Chassis:
F06,F10,F12,F13

Fits BMW Engines including:
S63N

Genuine BMW Idle Speed Control Hose
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Genuine BMW - Corporate Logo
T#:367818
Part#: 13411710793
In Stock
2% 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.

$ 106.99 USD
Free Shipping on orders $49 and up
2% 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.

$ 106.99 USD
Free Shipping on orders $49 and up
Genuine BMW Crank Case Vent Valve - E38 E39 E31 M62 4.4L
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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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OEM Rein CCV Hose - E60/1/3/4/5/6 E70 N62
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Rein - Corporate Logo
T#:402019
Part#: 11617563477
Ships in 1 day
$ 104.99 USD
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$ 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.
Valve Cover Vent Hose - N51 N52 - E9x, E60, E70, Z4, E82
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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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E70 Return Pipe
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Bremmen Parts - Corporate Logo
T#:52551447
Part#: 11537806706
Ships on Sep 28, 2026
New Item
Sale - Save 20% $ 129.99

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

$ 103.99 USD
Sale - Save 20%
$ 129.99

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

$ 103.99 USD

Genuine BMW Crank Case Vent Valve (CCV) - E53 X5 M62 4.4L 4.6L ...
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Genuine BMW - Corporate Logo
T#:19249
Part#: 11617508541
Ships in 1 day
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 Vent Hose Zyl. 1-4 - 11157843150 - F06,F10,F12,F13 ...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Genuine BMW - Corporate Logo
T#:32308
Part#: 11157843150
In Stock
4% off MSRP $ 108.59

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4% off MSRP
$ 108.59

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

$ 103.99 USD
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Genuine BMW Vent Hose - Zyl. 1-4
This item fits the following BMW Chassis:
F06,F10,F12,F13

Fits BMW Engines including:
S63N

Genuine BMW Fuel Pressure Regulator Vacuum Line - E39 M5
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Genuine BMW - Corporate Logo
T#:41966
Part#: 13531407568
Special Order: No Guaranteed ETA
2% off MSRP $ 103.99

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

$ 101.99 USD
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2% off MSRP
$ 103.99

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

$ 101.99 USD
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Genuine BMW Vacuum Pipe
This item fits the following BMW Chassis:
E39 M5,E39

Fits BMW Engines including:
S62


Vacuum Pipe - E60, E63, E64
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Genuine BMW - Corporate Logo
T#:36651
Part#: 11617836997
Ships in 7 Business Days
5% 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.

$ 97.99 USD
Free Shipping on orders $49 and up
5% 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.

$ 97.99 USD
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Genuine BMW Vacuum Pipe
This item fits the following BMW Chassis:
E60 M5,E63 M6,E63

Fits BMW Engines including:
S85

Genuine BMW Crankcase Pressure Regulator Valve
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Genuine BMW - Corporate Logo
T#:367709
Part#: 11617501566
Ships in 2 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
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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
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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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Bremmen "Cold Climate" Crankcase Pressure Regulator Valve Kit - BMW M...
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Bremmen Parts - Corporate Logo
T#:2528129
Part#: 11617533400S1
In Stock
Sale - Save 14% $ 110.99

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

$ 94.99 USD
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Sale - Save 14%
$ 110.99

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

$ 94.99 USD
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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. As long as you have everything off, you can rest assured that new parts will last and be reliable. Don't forget to order a valve cover gasket, throttle body gasket, and a new intake boot to make your separator change easier and more comprehensive.
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OEM Febi Crankcase Ventilation Return Hose - E60 E90 Z4 N52 3.0L ...
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Febi - Corporate Logo
T#:38452821
Part#: 11157527570
Special Order: No Guaranteed ETA
$ 93.99 USD
$ 93.99 USD
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.
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Crankcase Breather Hose - E46 M3 01-04 Z3M - S54
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Genuine BMW - Corporate Logo
T#:12911
Part#: 11157831311
In Stock
Sale - Save 8% $ 99.99

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

$ 92.05 USD
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Sale - Save 8%
$ 99.99

This product was last offered at the strikethrough price on
06-15-2026

$ 92.05 USD
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This hose directs the oil & combustion vapors from the valve cover and directs them to the intake manifold where they are put through combustion again in order to reduce emissions. We recommend replacing this hose when replacing the oil separator #11157840446.

This item fits the following BMWs:
2001-2004 E46 BMW M3
2001-2002 Z3 BMW M Roadster M Coupe
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Crankcase Vent Hose - E9X 335i /xi, E82 135i, E60 535i/Xi
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Genuine BMW - Corporate Logo
T#:11946
Part#: 11157553949
In Stock
4% off MSRP $ 89.95

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

$ 85.92 USD
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4% off MSRP
$ 89.95

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

$ 85.92 USD
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This hose directs the oil & combustion vapors from the valve cover and directs them to the intake manifold where they are put through combustion again in order to reduce emissions. When installing one of our N54 Oil Catch Cans the connections on this hose will often break. We recommend replacing this hose at the same time as your catch can.
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.

This item fits the following BMWs:
2008-2010 E82 BMW 135i
2011+ E82 BMW 1M Coupe
2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
2007-2010 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
2007-2010 E93 BMW 335i - Convertible
2004-2010 E60 BMW 535i 535xi 535i xDrive
2009+ Z4 BMW Z4 sDrive35i Z4 sDrive35is
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Genuine BMW Intake Manifold Cover (PCV)
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Genuine BMW - Corporate Logo
T#:19248
Part#: 11617501562
Ships in 1 day
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
Free Shipping
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
Performance Oil Separator Kit - M52/S52
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Packaged by Turner - Corporate Logo
T#:51356040
Part#: 059015LA02KT2KT
Ships on Oct 5, 2026
New Item
Sale - Save 19% $ 104.99

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

$ 84.77 USD
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Sale - Save 19%
$ 104.99

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

$ 84.77 USD
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On M52/S52-equipped BMWs, the factory crankcase ventilation (CCV) system is a notorious weak link. Between brittle plastic corrugated hoses that crumble from heat soak and an internal cyclone diaphragm prone to tearing, a failing CCV leads to massive oil consumption, vacuum leaks, and that dreaded "howling" whistle.

This kit addresses these issues with all new components and hardware. Both oil separator hoses, the cyclone separator itself, the mounting grommet, and the retaining bolts are included. Servicing this system is guaranteed to restore performance lost as a result of worn CCV components.

Kit includes:

Cyclone Separator/Crankcase Pressure Regulator Valve High Performance Silicone Breather Hose Return Hose Mounting Grommet Hex Bolt (3)

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Comprehensive Constant Pressure Valve Replacement Kit
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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
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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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PCV Vent Pipe
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Rein - Corporate Logo
T#:594381
Part#: 11127588417
In Stock at Vendor
$ 84.99

This product was last offered at the strikethrough price on
03-31-2026

$ 83.99 USD
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$ 83.99 USD
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Connects to the PCV outlet on the valve cover

Febi-Bilstein Oil Separator/CCV Kit with Hoses - 11151703484 ...
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Febi - Corporate Logo
T#:28337855
Part#: 11151703484KIT
In Stock
$ 108.99

This product was last offered at the strikethrough price on
07-08-2026

$ 82.99 USD
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$ 82.99 USD
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Rubber breather pipes in various BMW applications are susceptible to cracking. Over time, engine heat and weather conditions can weaken these hoses, leading to breaks or leaks. This results in significant vacuum leaks that can severely affect engine performance.

Moreover, BMW faces a problem with oil separators freezing in cold weather, particularly if the engine isn't adequately warmed up during driving. Typical signs include a howling noise and subsequent oil leaks.

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Vacuum Pipe - E90, E92, E93
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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
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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


Genuine BMW Vacuum Pipe -
This item fits the following BMW Chassis:
E90,E92,E93


Bremmen Oil Separator Kit - Level 1 - E39 E46 E83 Z3 Z4
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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
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Sale - Save 15%
$ 95.99

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

$ 81.59 USD
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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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Rein Crankcase Ventilation Return Pipe - E60, E90, Z4
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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
$ 81.15 USD
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$ 81.15 USD
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Located under intake manifold

Crankcase Ventilation Hose Kit M54 Engine
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Rein - Corporate Logo
T#:379190
Part#: 11617504535K
Back Ordered
$ 79.99 USD
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$ 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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CCV Hose
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Bremmen Parts - Corporate Logo
T#:51391238
Part#: 11127850244
Ships on Sep 28, 2026
New Item
Sale - Save 20% $ 99.99

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

$ 79.99 USD
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Sale - Save 20%
$ 99.99

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

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Genuine BMW Vent Pipe - 11157589989
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Genuine BMW - Corporate Logo
T#:32290
Part#: 11157589989
Ships in 1 day
5% off MSRP $ 83.99

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

$ 79.99 USD
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5% off MSRP
$ 83.99

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

$ 79.99 USD
Free Shipping on orders $49 and up
This part has been superseded to BMW Part 11152372568
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
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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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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
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$ 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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Upgraded Silicone PCV Hose - (11127588417) - N20/N26
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Turner Motorsport - Corporate Logo
T#:46203566
Part#: 018501LA02
Ships on Aug 3, 2026
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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