Emissions System for BMW Z3 (1996-2002)

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Is your BMW throwing emissions related codes? While we're primarily a BMW performance parts house, we understand the importance of maintaining your emissions system to pass inspection in your area and keep your check engine light off. Pick up your emissions related parts from Turner Motorsport.

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Comprehensive Constant Pressure Valve Replacement Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:557341
Part#: 11111318185TMSKT
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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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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
Bremmen Parts - Corporate Logo
T#:641646
Part#: 11617501566S1
Ships in 6 Business Days
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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$ 95.99

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$ 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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Performance Oil Separator Kit - M52/S52
For vehicles with production date up to 09/1998
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:51356040
Part#: 059015LA02KT2KT
In Stock
Sale - Save 19% $ 104.99

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

$ 85.28 USD
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Sale - Save 19%
$ 104.99

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

$ 85.28 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
Bremmen Parts - Corporate Logo
T#:30629661
Part#: 11157831311
In Stock
Sale - Save 21% $ 30.99

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

$ 24.47 USD
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Sale - Save 21%
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This product was last offered at the strikethrough price on
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$ 24.47 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
Bremmen Parts - Corporate Logo
T#:35121140
Part#: 16137193479
In Stock
Sale - Save 18% $ 65.99

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

$ 54.39 USD
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$ 54.39 USD
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Vacuum Control Valve
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:47850818
Part#: 11747810831
In Stock
Sale - Save 21% $ 26.99

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

$ 21.21 USD
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Crankcase Vent Valve
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:8741204
Part#: 11157501567
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This product was last offered at the strikethrough price on
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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 Ventilation Hose
For vehicles with production date from 09/1998
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
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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Burgaflex Crankcase Vent Pipe - Return Pipe from Connecting Hose - E3...
For vehicles with production date up to 01/2000 For vehicles with production date from 01/2000
Burgaflex - Corporate Logo
T#:596611
Part#: 11617504536
In Stock
$ 17.99

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

$ 13.99 USD
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$ 13.99 USD
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Keep your vehicle running crisp and leak-free with this premium return pipe manufactured by Burgaflex.

Burgaflex - Corporate Logo
T#:57725180
Part#: 11151740393
In Stock
New Item
$ 5.99 USD
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Maintain your engine's operational integrity and keep vacuum leaks at bay with this essential replacement vent hose from Burgaflex.
Bremmen Crankcase Ventilation Hose - E39 E53 E60 E83 E46
For vehicles with production date up to 10/2003
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
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
Air Adjustment Unit/DISA Valve Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15677538
Part#: 11617533344-KT
In Stock
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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Burgaflex - Corporate Logo
T#:596606
Part#: 11157532649
In Stock
$ 12.99 USD
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$ 12.99 USD
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Maintain peak engine health and precise air-fuel control by replacing your worn or cracked factory breather assembly with a premium Burgaflex replacement.
Oil Separator Kit - Level 1
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
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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Sale - Save 24%
$ 123.99

This product was last offered at the strikethrough price on
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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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Idle Control Valve Kit
10X Entries Into Our F80 M3 Sweepstakes
Packaged by Turner - Corporate Logo
T#:15744026
Part#: 11611437453-KT
In Stock
$ 173.13 USD
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Located in the intake system, this part is a common source of idle issues. This kit includes a new mount and idle control valve grommet

Bremmen Parts - Corporate Logo
T#:47439371
Part#: 02SB1815
Ships on May 7, 2027
Sale - Save 39% $ 3.99

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

$ 2.44 USD
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Sale - Save 39%
$ 3.99

This product was last offered at the strikethrough price on
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$ 2.44 USD
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Easily add an oxygen sensor to your custom exhaust setup with this universal O2 sensor bung. Designed for simple weld-on installation, it allows you to place your sensor exactly where you need it—perfect for custom builds, exhaust modifications, or performance tuning projects.

Features:

CNC-cut from T304 Stainless Steel for corrosion resistance
Threaded for M18x1.5mm RH oxygen sensors

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Bremmen Mounting Grommet Seal - BMW E36 E39 Z3 E34 E38
Up to Model Year 09/1998
10X Entries Into Our F80 M3 Sweepstakes
Bremmen Parts - Corporate Logo
T#:640144
Part#: 13411733217
Back Ordered
Sale - Save 10% $ 10.99

This product was last offered at the strikethrough price on
10-08-2026

$ 9.89 USD
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$ 10.99

This product was last offered at the strikethrough price on
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$ 9.89 USD
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This grommet is located on the back side of the PCV or idle control valve