Emissions System for BMW Z Series E36/7 (1996-2002)

OEM Bosch Fuel System Evaporative Leak Diagnosis Pump - E46 E9X E82 +...

For vehicles with production date from 10/2001

T#:19449

Part#: 16137193479

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$ 68.99 USD

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Replace the defective leak diagnosis pump -often referred to as the "DTML pump" - on your BMW with this OEM unit from Bosch. This part detects vapor leaks in the fuel evaporative system.

This item fits the following BMWs:
2008+ E82 BMW 128i 135i 135is 1M Coupe
2002-2005 E46 BMW 325i 325ci 325xi 330i 330ci 330xi M3
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335i 335xi 335i xDrive M3 - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive M3 - Coupe
2007-2013 E93 BMW 328i 335i M3 - Convertible
2002-2003 E39 BMW 525i 528i 530i 540i M5
2004-2010 E60 BMW 525i 525xi 530i 530xi 528i 528xi 528i xDrive 535i 535xi 535i xDrive 545i 550i M5
2010-3/2012 F07 BMW 535i GT, 535i xDrive GT, 550i GT, 550i xDrive GT
3/2012+ F07 BMW 550i GT, 550i xDrive GT
2011-3/2012 F10 BMW 528i (N52) 528i xDrive 535i 535i xDrive 550i 550i xDrive
3/2012+ F10 BMW 550i 550i xDrive
2004-2010 E63 BMW 645ci 650i M6
2012-3/2012 F12 BMW 640i 650i 650i xDrive
3/2012+ F12 BMW 650i 650i xDrive
2002-2006 E65 BMW 745i 745li 750i 750li 760i 760li
2009+ F01 BMW 740i 740li 750i 750li 750i xDrive 750li xDrive
2013+ E84 BMW X1 sDrive28i X1 xDrive28i X1 xDrive35i
2004-2010 E83 BMW X3 2.5i X3 3.0i X3 3.0si
2011 F25 BMW X3 xDrive28i
2011+ F25 BMW X3 xDrive35i
2002-2006 E53 BMW X5 3.0i X5 4.4i X5 4.6is X5 4.8is
2007-2013 E70 BMW X5 3.0si X5 4.8i X5 xDrive30i X5 xDrive35i X5 xDrive48i X5 xDrive50i X5M
2008+ E71 BMW X6 xDrive35i X6 xDrive50i X6M
2002-2002 Z3 BMW Z3 2.5i Z3 3.0i M Roadster M Coupe
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe
2009+ Z4 BMW Z4 sDrive28i Z4 sDrive30i Z4 sDrive35i Z4 sDrive35is
2002-2003 E52 BMW Z8 Roadster

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OEM Bosch Oxygen Sensor - mounts before catalytic converter - E46 E39...

T#:2998

Part#: 11781742050

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$ 96.08

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05-29-2026

$ 90.99 USD

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This direct fit Bosch oxygen sensor plugs directly into your factory connector. It is the pre-cat sensor. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. It fits BMW E46 E39 E38 X3 X5 Z3 Z4. Bosch # 13 477.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi 330ci
1999-2003 E39 BMW 525i 528i 530i M5
1997-2003 E39 BMW 540i
1995-2001 E38 BMW 750il
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2000-2003 E53 BMW X5 4.4i 4.6is
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
2000-2003 E52 BMW Z8

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Comprehensive Constant Pressure Valve Replacement Kit

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T#:557341

Part#: 11111318185TMSKT

In Stock

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$ 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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Oxygen Sensor - Priced Each

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T#:35863157

Part#: 11781742050

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$ 49.99 USD

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This direct fit oxygen sensor plugs directly into your factory connector. It is the pre-cat sensor. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. It fits BMW E46 E39 E38 X3 X5 Z3 Z4. Bosch # 13 477.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330xi 330ci
1999-2003 E39 BMW 525i 528i 530i M5
1997-2003 E39 BMW 540i
1995-2001 E38 BMW 750il
2004-2006 E83 BMW X3 2.5i X3 3.0i
2000-2006 E53 BMW X5 3.0i
2000-2003 E53 BMW X5 4.4i 4.6is
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2005 E85 BMW Z4 2.5i Z4 3.0i
2000-2003 E52 BMW Z8

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OEM Bosch Oxygen Sensor - Cyl. 4-6 - before catalytic converter - E46...

T#:2995

Part#: 11781405324

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$ 117.99 USD

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This is the pre-cat oxygen sensor for cylinders 4-6 for BMW E46 M3.Bosch # 13 952.

This item fits the following BMWs:
2001-2006 E46 BMW M3 M3 convertible
2001-2002 Z3 BMW M Roadster M Coupe

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Bremmen Oil Separator Kit - Level 1 - E39 E46 E83 Z3 Z4

For vehicles with production date from 01/2000

10X Entries Into Our F80 M3 Sweepstakes

T#:641646

Part#: 11617501566S1

In Stock

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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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Large Aluminum Oil Catch Can

T#:597051

Part#: MMOCCLA

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$ 127.99 USD

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WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.

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Performance Oil Separator Kit - M52/S52

For vehicles with production date up to 09/1998

10X Entries Into Our F80 M3 Sweepstakes

T#:51356040

Part#: 059015LA02KT2KT

In Stock

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

$ 84.24 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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Crankcase Vent Hose

10X Entries Into Our F80 M3 Sweepstakes

T#:30629661

Part#: 11157831311

In Stock

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

$ 24.47 USD

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OEM Bosch Oxygen Sensor - Cyl. 1-3 - before catalytic converter - E46...

T#:2996

Part#: 11781743994

In Stock

$ 199.99

This product was last offered at the strikethrough price on
05-07-2026

$ 145.37 USD

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Bad oxygen sensors can cause check engine lights and poor fuel mileage. Replace your faulty sensor with this high quality Bosch sensor to turn off your check engine light and restore fuel mileage.

This is the pre-cat oxygen sensor for cylinders 1-3 for BMW E46 M3. Bosch # 13 949. This is a OEM replacement part for BMW part # 11781743994.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

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!

This item fits the following BMWs:
2001-2006 E46 BMW M3 M3 convertible
2001-2002 Z3 BMW M Roadster M Coupe

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Bosch Oxygen Sensor - mounts after catalytic converter - E46 E39 X3 X...

T#:2118

Part#: 11781433940

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$ 147.99 USD

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This is the post-cat oxygen sensor for cylinders 4-6 for BMW E46 E39 X3 X5 Z3 Z4. Bosch # 15 109.

This item fits the following BMWs:
1999-3/2003 E46 BMW 323i 323ci 325xi 328i 328ci 330i 330ci 330xi
2001-3/2003 E46 BMW 325i 325ci only for cars with M54 engine
1999-2003 E39 BMW 528i 525i 530i
2004-2006 E83 BMW X3 2.5 - Bank 1 Only
2004-2006 E83 BMW X3 3.0i - Bank 1 - Automatic Transmission Only
2000-2006 E53 BMW X5 3.0i
1999-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
2003-2006 E85 BMW Z4 2.5i Z4 3.0i

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Bav Auto Crankcase Ventilation Return Hose - E46 E39 E60 Z3

For vehicles with production date from 01/2000 For vehicles with production date up to 01/2000

10X Entries Into Our F80 M3 Sweepstakes

T#:638072

Part#: 11617504536

In Stock

Sale - Save 20% $ 26.99

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

$ 21.59 USD

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This is the BMW crankcase return line that goes from the intake manifold to the top CCV connecting hose. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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Bav Auto Crankcase Pressure Regulator Valve - BMW M52 M54

For vehicles with production date from 09/1998

10X Entries Into Our F80 M3 Sweepstakes

T#:640207

Part#: 11617501566

In Stock

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

$ 26.39 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. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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OEM Bosch E46 M3 Z3M Z4M Oxygen Sensor - Cyl. 4-6 - after Catalytic C...

T#:2675

Part#: 11781406622

Ships in 4 Business Days

$ 208.90

This product was last offered at the strikethrough price on
05-19-2026

$ 157.99 USD

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$ 157.99 USD

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This oxygen sensor fits the following BMWs:
2001-2006 E46 3 Series M3 M3 Convertible
2001-2002 Z3 M Z3 M Roadster Z3 M Coupe with S54 engine
2006-2008 E85 E86 Z4 M Z4 M Roadster Z4 M Coupe

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Fuel Tank Breather Valve

2X Entries Into Our F80 M3 Sweepstakes

T#:591935

Part#: 13901433603

Ships in 2 Business Days

$ 49.99 USD

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Valve between charcoal canister and throttle body

Engine Crankcase Breather Element

Superior performance for both warm and cold climates

5X Entries Into Our F80 M3 Sweepstakes
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:35795496

Part#: 11617533400

In Stock

$ 41.99 USD

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Commonly referred to as the "oil separator" or PCV 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.

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Mishimoto Universal Catch Can Kit - Carbon Fiber

T#:372557

Part#: MMOCCCF

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$ 162.99 USD

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Universal kit with a catch can and rubber hose; for retrofitting on a variety of vehicles. Carbon fiber catch can prevents a harmful buildup of oil inside of the turbocharger, intake manifold, intercooler and piping. Separates oil particles from PCV/CCV air Defends intercooler, intake system, and essential components from oil blow-by Made from lightweight carbon fiber Compact design makes for easy engine bay placement Checking fluid levels made easy with built in sight tube Comes complete with mounting bracket, hose, all necessary clamps, fittings, and mounting hardware Mishimoto Lifetime Warranty WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.

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OEM Bosch E46 M3 Z3M Z4M Oxygen Sensor - Cyl. 1-3 - After Catalytic C...

T#:367424

Part#: 15138

Ships in 4 Business Days

$ 145.27

This product was last offered at the strikethrough price on
07-31-2026

$ 118.99 USD

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This oxygen sensor fits the following BMWs:
2001-2006 E46 3 Series M3 M3 Convertible
2001-2002 Z3 M Z3 M Roadster Z3 M Coupe with S54 engine
2006-2008 E85 E86 Z4 M Z4 M Roadster Z4 M Coupe

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Radium Engineering Universal Catch Can Petcock Drain Kit

T#:27905095

Part#: 20-0024

In Stock at Vendor

$ 28.99 USD

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Includes:

Anodized 4AN ORB Barbed Adapter Fitting, Black Ball Valve with 1/4" Barbs, 125psi @ 140F 4 feet of Radium 1/4" PCV Hose

Bav Auto Vent Hose - From Valve Cover to Oil Separator - E36 E39 Z3 ...

For Model year 1998-2001 only

10X Entries Into Our F80 M3 Sweepstakes

T#:579869

Part#: 54546

In Stock

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$ 21.59 USD

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Leak Detection Pump - Priced Each

For vehicles with production date from 10/2001

10X Entries Into Our F80 M3 Sweepstakes

T#:35121140

Part#: 16137193479

In Stock

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$ 54.39 USD

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Bosch Oxygen Sensor - Mounts Before Catalytic - E36 Z3 M44, E31, E38,...

T#:13046

Part#: 11781247406

Ships on Apr 6, 2027

$ 83.99 USD

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This direct fit Bosch oxygen sensor plugs directly into your factory connector. Fits M44 engine Z3 and 3 series and M62 engine E39, E38, E31 with V8 engines. No cutting or splicing required. A new oxygen sensor can improve driveability and lengthen engine life. Bosch part number 13559.

This is the pre-catalytic converter oxygen sensor

This item fits the following BMWs:
1996-1998 E36 BMW 318i 318is 318ti 318ic
1997-1998 E39 BMW 540i
1996-2001 E38 BMW 740i 740il
1996-1998 Z3 BMW Z3 1.9

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Vacuum Control Valve

10X Entries Into Our F80 M3 Sweepstakes

T#:47850818

Part#: 11747810831

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05-03-2026

$ 21.21 USD

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Leak Detection Pump

2X Entries Into Our F80 M3 Sweepstakes

T#:15445597

Part#: 16136756440

In Stock

$ 153.99

This product was last offered at the strikethrough price on
09-07-2026

$ 130.99 USD

Limited Qty Sale

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$ 153.99

This product was last offered at the strikethrough price on
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$ 130.99 USD

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Leak detection pump tests fuel containment system for vapor leaks to atmosphere. Failed pump often turns on check engine light.

Suction Pump

2X Entries Into Our F80 M3 Sweepstakes

T#:377591

Part#: 11617545382

In Stock

$ 59.62 USD

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A common source for vacuum leaks

Crankcase Vent Valve

10X Entries Into Our F80 M3 Sweepstakes

T#:8741204

Part#: 11157501567

In Stock

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$ 21.50 USD

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This valve is also commonly called the PCV valve, and is important to maintain a proper idle. When this valve begins to leak, you will get a large vacuum leak that can cause many problems.

Crankcase Pressure Regulator Valve

For vehicles with production date from 09/1998

2X Entries Into Our F80 M3 Sweepstakes

T#:373032

Part#: 11617501566

Ships in 2 Business Days

$ 25.99 USD

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Commonly referred to as the "oil separator" or PCV

Upper Oil Separator Vent Tube

For vehicles with production date up to 10/2003 For vehicles with production date from 01/2000

2X Entries Into Our F80 M3 Sweepstakes

T#:362022

Part#: 11617504535

Ships in 2 Business Days

$ 20.99 USD

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$ 20.99 USD

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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.

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Oxygen Sensor

T#:596842

Part#: 11781743996

Ships in 2 Business Days

$ 156.99

This product was last offered at the strikethrough price on
05-07-2026

$ 131.99 USD

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$ 131.99 USD

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Oil Separator Hose

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T#:361564

Part#: 11151703775

Ships in 2 Business Days

$ 24.99 USD

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Runs from the valve cover to PCV valve

URO Secondary Air Pump - BMW E36 Z3 M44

2X Entries Into Our F80 M3 Sweepstakes

T#:639327

Part#: 11721433818

Ships in 2 Business Days

$ 222.86 USD

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$ 222.86 USD

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Clear trouble codes and prevent a failed emissions check

Bosch Leak Diagnosis Pump - E39, E46, Z3

For vehicles with production date up to 09/2001

T#:377059

Part#: 16136756440

Back Ordered

$ 221.99

This product was last offered at the strikethrough price on
05-07-2026

$ 202.11 USD

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Located under the vehicle, near the transmission bellhousing or in the rear.

Vacuum Control Valve - E36 E39 E46 E53 E65 E66 E70 E83 E90

2X Entries Into Our F80 M3 Sweepstakes

T#:24179138

Part#: 11747810831

Ships in 2 Business Days

$ 27.99 USD

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Vacuum control valve used in emissions control systems.

Bav Auto Upper Oil Separator Vent Tube - E36 E46 E60 E84 Z3 Z4 M54 M5...

For vehicles with production date up to 10/2003 For vehicles with production date from 01/2000

10X Entries Into Our F80 M3 Sweepstakes

T#:640502

Part#: 11617504535

In Stock

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$ 19.99 USD

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Runs from the top of the oil separator up to rear of the intake manifold. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.

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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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$ 123.99

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$ 93.71 USD

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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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Engine Vent Hose 11151740393

2X Entries Into Our F80 M3 Sweepstakes

T#:6703

Part#: 11151740393

Back Ordered

$ 5.89 USD

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$ 5.89 USD

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ENGINE VENT HOSE 11151740393

Non-Return Valve

2X Entries Into Our F80 M3 Sweepstakes

T#:56977985

Part#: 11611312737

Ships in 2 Business Days

$ 12.99 USD

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$ 12.99 USD

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Keep your BMW's vacuum and secondary air injection systems operating with complete efficiency under all driving conditions using this URO Parts non-return valve

Crankcase Ventilation Hose

For vehicles with production date from 09/1998

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T#:30629689

Part#: 11157532649

In Stock

Sale - Save 24% $ 15.99

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

$ 12.23 USD

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This product was last offered at the strikethrough price on
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$ 12.23 USD

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Oil Separator Hose - E46, Z4

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T#:579880

Part#: 55080

In Stock

Sale - Save 20% $ 24.99

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

$ 19.99 USD

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Cold climate version for extra insulation! Fits all E46 and Z4 chassis equipped with an M54 engine.

Bremmen Crankcase Ventilation Hose - E39 E53 E60 E83 E46

For vehicles with production date up to 10/2003

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T#:640147

Part#: 11611432559

In Stock

Sale - Save 22% $ 23.99

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

$ 18.76 USD

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Crankcase Vent Hose - From Valve Cover to Oil Separator - Fit BMWs with the M52 or M54 6 cylinder engine

Crankcase Ventilation Hose - E46 M3 Z3M Coupe S54

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T#:25109076

Part#: 11157831311

Ships on Nov 5, 2026

$ 17.99 USD

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This hose runs from the oil separator to the intake manifold and is designed to allow the recirculation of built-up oil vapors.

Due to its proximity to engine heat, this hose tends to get brittle and break as it ages. This can lead to oil leaks, vacuum leaks, misfires, and more.

If your crankcase ventilation hose is brittle or leaking, replace it with this unit from URO Parts.

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OEM BMW Engine Rubber Mounting 11727559515

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T#:13041

Part#: 11727559515

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$ 6.99

This product was last offered at the strikethrough price on
05-07-2026

$ 4.79 USD

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$ 4.79 USD

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OEM BMW RUBBER MOUNTING:116095

Air Adjustment Unit/DISA Valve Kit

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T#:15677538

Part#: 11617533344-KT

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Sale - Save 25% $ 162.99

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

$ 122.12 USD

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A bad DISA valve can cause a variety of issues, from a loud racket in the engine bay, hesitation at low rpm and a rough idle with lean codes. If the valve is making a loud noise, we recommend replacing it as soon as possible. It is possible for the pin holding the flap to be sucked into the motor causing serious damage. Very easy to replace, just need to undo the 4 bolts holding it to the intake manifold. Includes new mounting hardware

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Return Pipe

For vehicles with production date from 01/2000

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T#:372847

Part#: 11617504536

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$ 16.99 USD

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Runs from the intake manifold back to connecting hose

Crankcase Ventilation Hose

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T#:378279

Part#: 11617533398

Ships in 2 Business Days

$ 21.99 USD

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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.

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

For vehicles with production date up to 10/2003

2X Entries Into Our F80 M3 Sweepstakes

T#:2853

Part#: 11611432559

Ships in 2 Business Days

$ 14.99 USD

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$ 14.99 USD

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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

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Crankcase Ventilation Dipstick Hose - BMW M52TU M54

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T#:359570

Part#: 11157532629

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$ 12.99 USD

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This tube runs from the oil separator to the lower dipstick tube.

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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