Home
Engine Parts
Emissions System
Oil Separation & Breather System

Oil Separation & Breather System for BMW 5 Series E60 (2004-2010)

Clear BMW chassis

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.

Sub-Categories

CCV/PCV Breather Hoses (48)

Sort By:

Crankcase Ventilation Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:378279

Part#: 11617533398

Ships in 2 Business Days

$ 21.99 USD

Add to Wish List

Qty

$ 21.99 USD

Add to Wish List

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

Rein Return Pipe - E39, E46, E53, E60, E83, Z3, Z4

2X Entries Into Our F80 M3 Sweepstakes

T#:375092

Part#: 11617504536

In Stock

$ 19.99 USD

Add to Wish List

Qty

$ 19.99 USD

Add to Wish List

Runs from the intake manifold back to connecting hose

Crankcase Vent Hose - From Valve Cover to Oil Separator - E46 E39 E6...

2X Entries Into Our F80 M3 Sweepstakes

T#:2853

Part#: 11611432559

Ships in 2 Business Days

$ 14.99 USD

Add to Wish List

Qty

$ 14.99 USD

Add to Wish List

This Crankcase Vent Hose - From Valve Cover to Oil Separator fits BMWs with the M52 or M54 6 cylinder engine including E46 323i 325i 328i 330i E39 525i 528i 530i E60 525i 530i X3 2.5i 3.0i X5 3.0i Z3 2.5 2.8 3.0i Z4 2.5i 3.0i.

This item fits the following BMWs:
1999-2005 E46 BMW 323i 323ci 328i 328ci 330i 330ci 330xi
1999-2005 E46 BMW 325i 325ci 325xi - only with M54 engine
1999-2003 E39 BMW 528i 528i 530i
2004-2005 E60 BMW 525i 525xi 530i 530xi
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8i Z3 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i

Show More Show Less

Hose - From Oil Separator to Oil Dipstick Tube - E46 E39

For use in cold climates

2X Entries Into Our F80 M3 Sweepstakes

T#:2879

Part#: 11157532629

Ships in 2 Business Days

$ 10.99 USD

Add to Wish List

Qty

$ 10.99 USD

Add to Wish List

This is the updated hose that goes from the Crankcase Oil Separator Valve to the oil dipstick tube. This tube tends to get plugged with oil sludge and becomes brittle and cracks. It fits E46 323i 323ci 325i (M54) 325ci (M54) 325xi 328i 328ci 330i 330ci 330xi - E39 525i 530i - E60 525i 530i 2004-2005 - X3 2.5i 3.0i 2004-2006 - Z3 2.5i 3.0i - Z4 2.5i 3.0i 2003-2006.
In german, Rein means Pure. In the automotive industry the Rein name has quickly come to represent quality. With fitments for some of the world’s finest automobiles including BMW and Mini and guaranteed OE quality, Rein is a name you can trust.

This item fits the following BMWs:
2001-2005 E46 BMW 325i 325ci 325xi Only for cars with M54 engine
1999-2005 E46 BMW 323i 323ci 328i 328ci 330i 330ci 330xi
2001-2003 E39 BMW 525i 530i
2004-2005 E60 BMW 525i 525xi 530i 530xi
2004-2006 E83 BMW X3 2.5i X3 3.0i
2001-2002 Z3 BMW Z3 2.5i Z3 3.0i
2003-2005 Z4 BMW Z4 2.5i Z4 3.0i

Show More Show Less

Pressure Regulator Valve Repair Kit

2X Entries Into Our F80 M3 Sweepstakes

T#:600041

Part#: 11127547058

Ships in 2 Business Days

$ 14.99 USD

Add to Wish List

Qty

$ 14.99 USD

Add to Wish List

Rein Crankcase Ventilation Hose - Cylinders 1-4

For vehicles with updated valve cover, 11127563474

2X Entries Into Our F80 M3 Sweepstakes

T#:17738390

Part#: 11617563476

Ships in 4 Business Days

$ 46.99 USD

Add to Wish List

Qty

$ 46.99 USD

Add to Wish List

Manufactured with high-quality materials to withstand heat, dirt, and debris, matching OE expectations.

URO Crankcase Ventilation Hose - BMW M52TU M54

2X Entries Into Our F80 M3 Sweepstakes

T#:377307

Part#: 11157532649

Ships in 2 Business Days

$ 12.99 USD

Add to Wish List

Qty

$ 12.99 USD

Add to Wish List

From oil separator to dipstick tube

Rein Pressure Regulator Valve Repair Kit - E53, E60, E63, E64, E65, E...

2X Entries Into Our F80 M3 Sweepstakes

T#:55821694

Part#: 11127547058

Ships in 4 Business Days

$ 16.99 USD

Add to Wish List

Qty

$ 16.99 USD

Add to Wish List

This Rein Automotive repair kit allows you to service the internal components of the crankcase breather valve independently. Instead of replacing the entire, costly valve cover or manifold assembly, this kit provides the exact wear items required to rebuild the factory housing back to original operating specifications. All components are manufactured to strict OE tolerances. The diaphragm is molded from premium, oil-resistant elastomers engineered to withstand prolonged exposure to aggressive synthetic lubricants, fuel vapors, and extreme under-hood heat cycles without losing its elasticity or sealing profile.

Show More Show Less

Burgaflex Crankcase Vent Hose - Vent Valve to Oil Dip Stick Tube - E3...

T#:596606

Part#: 11157532649

Ships in 4 Business Days

$ 12.99 USD

Add to Wish List

Qty

$ 12.99 USD

Add to Wish List

Maintain peak engine health and precise air-fuel control by replacing your worn or cracked factory breather assembly with a premium Burgaflex replacement.

Burgaflex Crankcase Vent Pipe - Return Pipe from Connecting Hose - E3...

T#:596611

Part#: 11617504536

Ships in 4 Business Days

$ 17.99

This product was last offered at the strikethrough price on
09-26-2026

$ 13.99 USD

Add to Wish List

Qty

$ 13.99 USD

Add to Wish List

Keep your vehicle running crisp and leak-free with this premium return pipe manufactured by Burgaflex.

Engine Breather Hose

T#:57725177

Part#: 11157522931

Ships in 4 Business Days

$ 52.99 USD

Add to Wish List

Qty

$ 52.99 USD

Add to Wish List

Maintain peak engine health and keep your crankcase ventilation system operating seamlessly with this high-grade engine breather hose from Burgaflex.

Rein Crankcase Ventilation Hose - E39, E46, E60, E83, Z3, Z4 ...

2X Entries Into Our F80 M3 Sweepstakes

T#:359420

Part#: 11157532649

In Stock

$ 11.99 USD

Add to Wish List

Qty

$ 11.99 USD

Add to Wish List

ENGINE VENT HOSE 11157532649

Burgaflex Crankcase Vent Hose - Cylinders 1-4 - E53 E63 E64 E65 E60 E...

For vehicles with production date up to 11/2006

T#:583521

Part#: 11617547185

Ships on Oct 21, 2026

$ 46.99 USD

Add to Wish List

Qty

$ 46.99 USD

Add to Wish List

Maintain peak engine efficiency and track-ready performance by replacing degraded PCV components with the Burgaflex crankcase vent hose.

Oil Separator Vent Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:53326231

Part#: 11617522933

In Stock

Sale - Save 15% $ 23.99

This product was last offered at the strikethrough price on
09-16-2026

$ 20.39 USD

Add to Wish List

Qty

Sale - Save 15%

$ 23.99

This product was last offered at the strikethrough price on
09-16-2026

$ 20.39 USD

Add to Wish List

1
2

Select Vehicle

Purpose

Category

Oil Separation & Breather System
- CCV/PCV Breather Hoses (48)

Brand

View All Brands

Price

Special Offers

Shipping