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Emissions System

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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Fuel Tank Breather Valve
Fuel Tank Breather Valve
Bavarian Autosport - Corporate Logo
T#:25075803
Part#: 13907643106
In Stock
Sale - Save 20% $ 68.99

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

$ 55.19 USD
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$ 68.99

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Bav Auto Crankcase Pressure Regulator Valve - BMW M52 M54
Bav Auto Crankcase Pressure Regulator Valve - BMW M52 M54
Bavarian Autosport - Corporate Logo
T#:640207
Part#: 11617501566
In Stock
Sale - Save 20% $ 32.99

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05-03-2026

$ 26.39 USD
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$ 32.99

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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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Bav Auto Crankcase Ventilation Return Hose - E46 E39 E60 Z3
Bav Auto Crankcase Ventilation Return Hose - E46 E39 E60 Z3
Bavarian Autosport - Corporate Logo
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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$ 26.99

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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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Radium Engineering Universal Catch Can Petcock Drain Kit
Radium Engineering Universal Catch Can Petcock Drain Kit
Radium Engineering - Corporate Logo
T#:27905095
Part#: 20-0024
In Stock at Vendor
$ 28.99 USD
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$ 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
Bav Auto Vent Hose - From Valve Cover to Oil Separator - E36 E39 Z3 ...
Bavarian Autosport - Corporate Logo
T#:579869
Part#: 54546
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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$ 26.99

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Bav Auto Crank Case Ventilation Valve - E31 E38 E39 M62 4.4L
Bav Auto Crank Case Ventilation Valve - E31 E38 E39 M62 4.4L ...
Bavarian Autosport - Corporate Logo
T#:640206
Part#: 11617501563
In Stock
Sale - Save 20% $ 47.99

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

$ 38.39 USD
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$ 47.99

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An integral part of the emissions system, the PCV valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. When the crankcase vent valve fails it can cause excessive oil consumption, engine fault codes, and poor idle. 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 Intake Manifold Cover w/ PCV Valve - BMW E31 E32 E34 E38 M60 V8
Bav Auto Intake Manifold Cover w/ PCV Valve - BMW E31 E32 E34 E38 M6...
Bavarian Autosport - Corporate Logo
T#:639843
Part#: 11617501562
Special Order: No Guaranteed ETA
Sale - Save 15% $ 59.99

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

$ 50.99 USD
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$ 59.99

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An integral part of the emissions system, the PVC valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. Often split from underhood heat and age, this vents excess oil into the engine compartment. 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 Hose - E46, Z4
Oil Separator Hose - E46, Z4
Bavarian Autosport - Corporate Logo
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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$ 24.99

This product was last offered at the strikethrough price on
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Cold climate version for extra insulation! Fits all E46 and Z4 chassis equipped with an M54 engine.
Genuine MINI Stud Bolt M8X31 - 18307598251
Genuine MINI Stud Bolt M8X31 - 18307598251
Genuine MINI - Corporate Logo
T#:48485
Part#: 18307598251
In Stock
$ 9.19 USD
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$ 9.19 USD
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Genuine MINI Stud Bolt M8X31 for Mini

Ensure a secure installation of your Mini's exhaust manifold with the Genuine MINI Stud Bolt M8X31. This metal double-threaded stud bolt is designed for use near the catalytic converter, providing a reliable solution for broken or rusted exhaust manifold studs.

Benefits:

  • Genuine MINI quality ensures durability and reliability
  • Designed for use near the catalytic converter for secure installation
  • Ideal replacement for broken or rusted exhaust manifold studs
Genuine MINI STUD BOLT
Fits BMW Engines including:
N14,N18

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Bav Auto Upper Oil Separator Vent Tube - E36 E46 E60 E84 Z3 Z4 M54 M52TU
Bav Auto Upper Oil Separator Vent Tube - E36 E46 E60 E84 Z3 Z4 M54 M5...
Bavarian Autosport - Corporate Logo
T#:640502
Part#: 11617504535
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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$ 24.99

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

$ 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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Vaico Oil Separator Valve - E38, E39
Vaico Oil Separator Valve - E38, E39
We Price Match - Give Us A Call or Chat!
Vaico - Corporate Logo
T#:363292
Part#: 11151705272
In Stock
Sale - Save 25% $ 31.99

This product was last offered at the strikethrough price on
05-02-2026

$ 23.87 USD
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Sale - Save 25%
$ 31.99

This product was last offered at the strikethrough price on
05-02-2026

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Connects to the vent tube which is attached to the PCV valve
CLIP
CLIP
Genuine MINI - Corporate Logo
T#:405498
Part#: 07147544063
Ships in 1 day
$ 3.99

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

$ 2.99 USD
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$ 2.99 USD
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Genuine MINI Socket Housing 4-Polig - 12527543317
Genuine MINI Socket Housing 4-Polig - 12527543317
Genuine MINI - Corporate Logo
T#:40582
Part#: 12527543317
Ships in 4 Business Days
$ 9.99 USD
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$ 9.99 USD
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Genuine MINI SOCKET HOUSING
Fits BMW Engines including:
N12,N14,N51

Genuine MINI Lambda-probe Bracket - 11787547747
Genuine MINI Lambda-probe Bracket - 11787547747
Genuine MINI - Corporate Logo
T#:37691
Part#: 11787547747
Special Order: No Guaranteed ETA
6% off MSRP $ 51.99

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

$ 48.99 USD
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6% off MSRP
$ 51.99

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

$ 48.99 USD
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Genuine MINI LAMBDA-PROBE BRACKET
Fits BMW Engines including:
N14,N51

Vaico Vacuum Pipe - BMW F22/23 F3X F07/10 F25/26 N20 N26 2.0L
Vaico Vacuum Pipe - BMW F22/23 F3X F07/10 F25/26 N20 N26 2.0L ...
Vaico - Corporate Logo
T#:41492596
Part#: 11157603816
Special Order: No Guaranteed ETA
$ 28.99 USD
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$ 28.99 USD
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Eliminate vacuum leaks with this replacement vacuum pipe for your N20 / N26 powered BMW - Connects to the front passenger side of the N20 engine block

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