Emissions System for BMW X Series E83 (2004-2010)

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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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Bav Auto Crankcase Pressure Regulator Valve - BMW M52 M54

T#:640207

Part#: 11617501566

In Stock

Sale - Save 20% $ 32.99

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

$ 26.39 USD

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Sale - Save 20%

$ 32.99

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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Bav Auto Crankcase Ventilation Return Hose - E46 E39 E60 Z3

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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Qty

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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Oil Separator Hose - E46, Z4

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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Qty

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.

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

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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Qty

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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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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Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52

T#:56110313

Part#: 11787558055KT

In Stock

$ 307.99 USD

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$ 307.99 USD

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Your engine's air fuel ratio needs to be dead on. Worn out factory pre-cat oxygen sensors delay vital data to the DME, leading to sub optimal fueling, lost horsepower, and dangerous hesitation under load.

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Meyle Oxygen Sensor - Pre-Cat Bank 2 - E9X E60 E82 N52

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T#:5944212

Part#: 11787558073

Special Order: No Guaranteed ETA

$ 123.99 USD

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$ 123.99 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 Meyle sensor to turn off your check engine light and restore fuel mileage. This is a Meyle oxygen sensor for BMWs with the N52 engine. This sensor is mounted in the rear downpipe before the catalytic converter. Replacement for BMW # 11787558073 and 11787537984. 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!

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Emissions System for BMW X Series E83 (2004-2010)

Sub-Categories

Bav Auto Crankcase Pressure Regulator Valve - BMW M52 M54

Bav Auto Crankcase Ventilation Return Hose - E46 E39 E60 Z3

Oil Separator Hose - E46, Z4

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

Bosch Oxygen Sensors - Bank 1 And 2 Pre-Cat - N52

Meyle Oxygen Sensor - Pre-Cat Bank 2 - E9X E60 E82 N52

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