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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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AdBlue DEF Fluid - 9.46 Liters
AdBlue DEF Fluid - 9.46 Liters
Genuine Volkswagen Audi - Corporate Logo
T#:22558987
Part#: GUS052910A3
In Stock
$ 34.86 USD
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$ 34.86 USD
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For BMW enthusiasts committed to optimizing their vehicle's performance, the AdBlue Diesel Exhaust Fluid (DEF) - 9.46 Liters is the perfect solution. Engineered to enhance BMW diesel engines' efficiency, this DEF fluid ensures that your vehicle remains compliant with emission standards while operating at its peak.

  • Exceptional Purity: The AdBlue DEF Fluid - 9.46 Liters offers superior purity, safeguarding your BMW's exhaust system and reducing harmful emissions.
  • Emissions Compliance: Maintain your BMW's compliance with strict emission regulations, ensuring you can drive with peace of mind.
  • Extended Range: With 9.46 liters of DEF fluid, you'll enjoy an extended range before requiring a refill, providing convenience for your journeys.
  • Effortless Refilling: The user-friendly design of the container makes refilling your DEF reservoir a hassle-free task.
  • BMW Compatibility: This DEF fluid is tailored to meet BMW's stringent requirements, assuring compatibility with your vehicle.

Choose the AdBlue DEF Fluid - 9.46 Liters to enhance your BMW's efficiency and environmental responsibility. Drive confidently, knowing your vehicle is optimized for peak performance and emissions compliance.

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Engine Crankcase Breather Element
Engine Crankcase Breather Element
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:35795496
Part#: 11617533400
In Stock
$ 40.99 USD
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$ 40.99 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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Walker Oxygen Sensor - Downstream - F22 M235, F3X 335/435, F06/F12 640, F10 535, F87 M2
Walker Oxygen Sensor - Downstream - F22 M235, F3X 335/435, F06/F12 64...
Walker - Corporate Logo
T#:31324163
Part#: 11787645875
In Stock at Vendor
$ 101.99

This product was last offered at the strikethrough price on
04-14-2026

$ 91.99 USD
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$ 91.99 USD
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The oxygen sensor is part of your BMW's emissions control system and feeds data to BMW engine management computer. The oxygen sensor is positioned in the exhaust pipe and can detect rich and lean mixtures. The goal of the oxygen sensor is to help the engine run as efficiently as possible and also to produce as few emissions as possible. When your BMW oxygen sensor fails, the computer can no longer sense the air/fuel ratio, so it ends up guessing -- resulting in poor performance, poor gas mileage, and increased pollution. Make sure your BMW engine performs as it should, and doesn't use more fuel than it needs to, by simply changing your oxygen sensor today.
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Walker Oxygen Sensor - Rear Position - E84, E90, E92
Walker Oxygen Sensor - Rear Position - E84, E90, E92
Walker - Corporate Logo
T#:384617
Part#: 11787601911
Ships in 1-2 days
$ 176.99

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

$ 171.99 USD
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$ 171.99 USD
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Reads out emissions levels to the cars computer
Vitesco Oxygen Sensor/Lambda Probe - 415mm - F3X 328d, E70 35d, F15 xDrive35d
Vitesco Oxygen Sensor/Lambda Probe - 415mm - F3X 328d, E70 35d, F15 x...
Vitesco Technologies - Corporate Logo
T#:33446263
Part#: 13628589844
In Stock
Sale - Save 5% $ 442.99

This product was last offered at the strikethrough price on
07-14-2026

$ 420.84 USD
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Sale - Save 5%
$ 442.99

This product was last offered at the strikethrough price on
07-14-2026

$ 420.84 USD
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Oxygen sensors measure exhaust oxygen. Their signals are used by the vehicle computer to adjust the air/fuel ratio and test vehicle emissions. Degraded oxygen sensors reduce engine performance and fuel efficiency, and increase harmful tailpipe emissions. They can also turn on the Check Engine Light and cause a car to fail an emissions test.
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Oil Separator Valve
Oil Separator Valve
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:22064588
Part#: AS819M
In Stock
$ 41.99

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

$ 31.99 USD
Limited Qty Sale
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$ 41.99

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

$ 31.99 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.
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Secondary Air Injection Pump
Secondary Air Injection Pump
Dorman - Corporate Logo
T#:56110341
Part#: 306-006
In Stock at Vendor
New Item
$ 427.99

This product was last offered at the strikethrough price on
07-17-2026

$ 323.99 USD
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$ 323.99 USD
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BorgWarner EGR Valve - F30 F31 F15 F25 F02 F10
BorgWarner EGR Valve - F30 F31 F15 F25 F02 F10
BorgWarner - Corporate Logo
T#:44597309
Part#: 11717810871
In Stock at Vendor
$ 293.99

This product was last offered at the strikethrough price on
06-24-2026

$ 291.99 USD
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$ 291.99 USD
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The EGR valve regulates how much exhaust gas is recirculated back into the engine’s intake. Rather than allowing all exhaust gases to exit through the tailpipe, it redirects a portion into the cylinders to mix with the incoming air-fuel mixture. By lowering combustion temperatures, this process helps reduce harmful NOx emissions, ensures compliance with emissions standards, and can even contribute to longer engine life in some cases. If your EGR valve fails, replacing it promptly is essential to keep your vehicle running clean and within emissions regulations.
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Vitesco Oxygen Sensor/Lambda Probe - 915mm - BMW E90 335d, E70 35d, F3x 328d, F25 28dX
Vitesco Oxygen Sensor/Lambda Probe - 915mm - BMW E90 335d, E70 35d, F...
Vitesco Technologies - Corporate Logo
T#:33446261
Part#: 13628589846
Ships in 1-2 days
$ 546.99

This product was last offered at the strikethrough price on
01-26-2026

$ 546.98 USD
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$ 546.98 USD
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Oxygen sensors are used to adjust the air/fuel ratio and test vehicle emissions. Degraded oxygen sensors reduce engine performance and fuel efficiency, and increase tailpipe emissions. They can cause a car to fail an emissions test. Restore your emissions system with a new NOx Sensor from Vitesco.
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Vitesco Oxygen Sensor Kit - F30/31 N47, E70 M57
Vitesco Oxygen Sensor Kit - F30/31 N47, E70 M57
Vitesco Technologies - Corporate Logo
T#:33446269
Part#: 13628589844KT
Ships in 1-2 days
$ 989.99 USD
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$ 989.99 USD
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Includes both rear NOx Sensors for your BMW. A Vitesco Technologies Kit.
Oil Separator Valve
Oil Separator Valve
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:22064593
Part#: AS826M-D851
Ships on Aug 13, 2026
$ 62.99 USD
Free Shipping on orders $49 and up
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$ 62.99 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.
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Nitrogen Oxide Sensor (NOx Sensor) - Rear - E90 335d, F25 28dX
Nitrogen Oxide Sensor (NOx Sensor) - Rear - E90 335d, F25 28dX ...
Vitesco Technologies - Corporate Logo
T#:33446273
Part#: 13628589845
Back Ordered
$ 394.99 USD
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$ 394.99 USD
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A degraded NOx Sensor can cause your vehicle to have a check engine light and poor performance. Restore your emissions system with a new NOx Sensor from Vitesco!

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