Home
Engine Parts
Emissions System
Oil Separation & Breather System

Oil Separation & Breather System for BMW X Series E53 (2000-2006)

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 (4)

Sort By:

Crankcase Ventilation Hose Kit M54 Engine

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:379190

Part#: 11617504535K

Back Ordered

$ 79.99 USD

Add to Wish List

Qty

$ 79.99 USD

Add to Wish List

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

Show More Show Less

Genuine BMW Pressure Regulator Valve Repair Kit

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:6617

Part#: 11127547058

In Stock at Vendor

$ 253.99

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

$ 200.99 USD

Add to Wish List

Qty

$ 200.99 USD

Add to Wish List

Genuine BMW Repair Kit, Pressure Regulating Valve
This item fits the following BMW Chassis:
E53 48IS,E53 X5,E63,E65,E70 X5 X5

Fits BMW Engines including:
N62,N62N

Show More Show Less

"Cold Climate" Oil Separator Kit

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:377838

Part#: 11617534237

Ships in 1 Business Day

$ 74.99 USD

Add to Wish List

Qty

$ 74.99 USD

Add to Wish List

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.

Show More Show Less

Genuine BMW Crankcase Pressure Regulator Valve

For vehicles with production date up to 10/2003

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

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

Add to Wish List

Qty

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

Add to Wish List

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.

Show More Show Less

Genuine BMW Crank Case Vent Valve (CCV) - E53 X5 M62 4.4L 4.6L ...

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:19249

Part#: 11617508541

Ships in 2 Business Days

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

Add to Wish List

Qty

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

Add to Wish List

Genuine BMW Cover -
This item fits the following BMW Chassis:
E53 X5

Fits BMW Engines including:
M62

Crankcase Vent Hose - Cylinders 5-8

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:384972

Part#: 11617547186

Ships in 3 Business Days

$ 59.99 USD

Add to Wish List

Qty

$ 59.99 USD

Add to Wish List

Should be replaced anytime leaks are detected

"Cold Climate" Crankcase Pressure Regulator Valve

For vehicles with production date from 10/2003

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:376770

Part#: 11617533400

Ships in 1 Business Day

$ 70.99

This product was last offered at the strikethrough price on
04-10-2026

$ 40.99 USD

Add to Wish List

Qty

$ 40.99 USD

Add to Wish List

Commonly referred to as the "oil separator" or PCV

Crankcase Vent Hose - Cylinders 1-4

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:384973

Part#: 11617547185

Ships in 3 Business Days

$ 57.99 USD

Add to Wish List

Qty

$ 57.99 USD

Add to Wish List

Should be replaced anytime leaks are detected

Genuine BMW Crankcase Ventilation Hose - Cylinders 1-4

For vehicles with updated valve cover, 11127563474

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:36550

Part#: 11617563476

Ships in 2 Business Days

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

Add to Wish List

Qty

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

Add to Wish List

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

Turner Oil Separator Kit - E53 X5 M62 4.4L 4.6L

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:555308

Part#: 11151705237KT1

Back Ordered

Sale - Save 6% $ 208.99

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

$ 197.27 USD

Add to Wish List

Qty

Sale - Save 6%

$ 208.99

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

$ 197.27 USD

Add to Wish List

The rubber hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the 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, and hardware.

Fits the following BMWs:
1999-2006 E53 BMW with M62 4.4L 4.6L

Show More Show Less

Select Vehicle

Category

Oil Separation & Breather System
- CCV/PCV Breather Hoses (4)

Brand

Price

Special Offers

On Sale (1)

Shipping