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Oil Separation & Breather System for BMW Z Series E85/6 (2003-2008)

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Every car has a crankcase vent system that is supposed to suppress oil from making it into the intake ports and combustion chamber. A good functioning system will separate oil from the atmosphere and return it to the oil pan (or collect it in a catch can) while allowing the leftover vapors to burn in the combustion chamber or recirculate through the system. This has always been known as a PCV system (Positive Crankcase Ventilation) but BMW has several other names for it - oil separator, crankcase vent (CCV), and cyclonic separator. Failures in the system will allow raw oil to enter the intake and eventually into the engine itself which can have disastrous effects on engine performance and longevity. As emissions regulations on oil and gas venting have gotten more stringent the PCV systems have gotten more complex and failure prone. And because the CCV is intertwined with other systems you could experience rough running, loss of power, higher oil consumption, misfiring, stalling, or other annoying issues. There is no replacement interval for these so we recommend inspecting your crankcase vent system as part of your regular maintenance routines. Symptoms of a bad crankcase vent are: whitish or yellowish film on the underside of the oil cap, whistling/squealing noises (not caused by a belt), suction on the oil cap that makes it hard to unscrew, large amounts of white smoke from the exhaust, and excessive oil consumption.

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CCV/PCV Breather Hoses (9)

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Angle Connector With Heating Element

T#:556608

Part#: 11618638014

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$ 39.99 USD

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$ 39.99 USD

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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.

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Genuine BMW Vacuum hose

T#:13024

Part#: 11617503666

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$ 23.99 USD

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$ 23.99 USD

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Genuine BMW Hose Elbow -
This item fits the following BMW Chassis:
E39,E46,E53 X5,E83 X3,E85

Fits BMW Engines including:
M54

Genuine BMW Crankcase Ventilation Hose

T#:367705

Part#: 11611432559

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$ 47.99 USD

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Genuine BMW Extraction Line - E60 E91 E90 E91 N52 3.0L, Z4 N52 3.0L ...

T#:22212

Part#: 11157537701

Ships in 1-2 days

13% off MSRP $ 63.92

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

$ 55.74 USD

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13% off MSRP

$ 63.92

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

$ 55.74 USD

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Genuine BMW Extraction Line -
This item fits the following BMW Chassis:
E85,E86,E90

Fits BMW Engines including:
N52

Genuine BMW Upper Oil Separator Vent Tube

For use in cold climates

T#:13028

Part#: 11617533399

Ships in 1-2 days

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

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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

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GENUINE BMW CONNECTING LINE:111060

Crankcase Oil Separator Hose - E9x, E60, E85 with N52 engine ...

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

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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

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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 Crankcase Ventilation Dipstick Hose

For use in cold climates

T#:348228

Part#: 11157532629

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$ 39.99 USD

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$ 39.99 USD

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Genuine BMW Return Pipe - 11617504536 - E46 E39 E53 E60 E83 Z3 Z4 M52...

T#:348236

Part#: 11617504536

Ships in 1-2 days

2% off MSRP $ 43.99

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

$ 42.99 USD

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Qty

2% off MSRP

$ 43.99

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

$ 42.99 USD

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Part of the vacuum and emissions system that runs from the intake manifold back to the connecting hose.
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.

Fits the following BMW's:
E46 M52 (from 01/2000) and M54
E39 M52 (from 01/2000) and M54
E53 M54
E60 M54
E83 M54
Z3 M52 (up to 01/2000 for 2.3L and from 01/2000 for 2.8L) and M54
Z4 M54

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Genuine BMW Upper Oil Separator Vent Tube

T#:7025

Part#: 11617504535

Ships in 1-2 days

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

Add to Wish List

Qty

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

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Genuine BMW Connecting Line -
This item fits the following BMW Chassis:
E39,E46,E53 X5,E83 X3,E85

Fits BMW Engines including:
M52,M54

Genuine BMW Crankcase Ventilation Hose

For use in cold climates

T#:19233

Part#: 11617533398

Ships in 1-2 days

$ 47.99 USD

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$ 47.99 USD

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Genuine BMW ENGINE VENT PIPE

Genuine BMW Crankcase Ventilation Hose

T#:367590

Part#: 11157532649

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$ 39.99 USD

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$ 39.99 USD

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Oil Separator Kit - Level 1

10X Entries Into Our F80 M3 Sweepstakes

T#:15710823

Part#: E46M5411_61KT

In Stock

Sale - Save 24% $ 123.99

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

$ 93.71 USD

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Qty

Sale - Save 24%

$ 123.99

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

$ 93.71 USD

Add to Wish List

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. 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. ur 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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Oil Separation & Breather System
- CCV/PCV Breather Hoses (9)

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