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Emissions System for BMW 5 Series E61 (2006-2010)

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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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BMW N54 3.0L Blow-By Vent Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:594297

Part#: 11157553949

In Stock

$ 40.99 USD

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$ 40.99 USD

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This hose directs the oil & combustion vapors from the valve cover and directs them to the intake manifold where they are put through combustion again in order to reduce emissions. When installing one of our N54 Oil Catch Cans the connections on this hose will often break. We recommend replacing this hose at the same time as your catch can. When doing any sort of repair or maintenance there is no replacement for genuine factory parts. Turner Motorsport carries the Genuine BMW brand with pride and has the parts you need to complete your next project with confidence.

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Rein Crankcase Vent Hose

2X Entries Into Our F80 M3 Sweepstakes

T#:17804807

Part#: 11157522931

In Stock

$ 44.99

This product was last offered at the strikethrough price on
08-23-2026

$ 38.99 USD

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$ 38.99 USD

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Manufactured with high-quality materials to withstand heat, dirt, oil, and other debris.

Oxygen Sensor - Priced Each

T#:21966015

Part#: 11787537984

Ships on Jan 26, 2027

$ 170.99 USD

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$ 170.99 USD

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If your vehicle has a bad oxygen sensor, chances are it may cause you to fail an emissions check. Replace bad oxygen sensors and eliminate those codes.

Electric Valve - For Secondary Air System Or Exhaust Flap

T#:362205

Part#: 11747810831

In Stock

$ 85.99

This product was last offered at the strikethrough price on
03-23-2026

$ 43.99 USD

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$ 43.99 USD

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This electric valve serves one of several purposes depending on which car it is used on. Please read the application listings below to ensure you are purchasing the correct part.

Pierburg pumps are some of the most trusted and widely used on the market. From fuel, water, air and vacuum Pierburg has you covered with OE quality and reliable performance year after year.

This item fits the following BMWs:
Secondary Air System Valve
1996-1998 E36 BMW 323is 323ic 328i 328is 328ic M3
1999-3/2003 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi
2003-2005 E46 BMW 325i 325ci (M56)
1997-2003 E39 BMW 525i 528i 530i
2000-2006 E53 BMW X5 3.0i
1997-2002 Z3 BMW Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i
1997-2000 Z3 BMW M Roadster M Coupe (S52)

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Rein Crankcase Ventilation Hose - E60, E61, E90, E91

2X Entries Into Our F80 M3 Sweepstakes

T#:591594

Part#: 11157567802

Ships in 3 Business Days

$ 74.99 USD

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$ 74.99 USD

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From oil separator to oil pan vent tube

OEM Rein Oil Separator Vent Hose - E60/61 E90/91 Z4

2X Entries Into Our F80 M3 Sweepstakes

T#:13029

Part#: 11617559530

Ships in 3 Business Days

$ 66.99

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

$ 43.99 USD

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$ 43.99 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. 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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Oil Separator Valve

2X Entries Into Our F80 M3 Sweepstakes

T#:594299

Part#: 11617531423

Ships in 3 Business Days

$ 120.81 USD

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$ 120.81 USD

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The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

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OEM Rein Oil Separator Vent Hose - E60/1 E90/1 N52

2X Entries Into Our F80 M3 Sweepstakes

T#:402020

Part#: 11617522933

In Stock

$ 19.99 USD

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$ 19.99 USD

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If your BMW has a damaged vent hose, be sure to replace it to restore functionality of this rather important emissions system.

Pierburg Vacuum Pump - BMW N52 3.0L

T#:380841

Part#: 11667519457

Special Order: No Guaranteed ETA

$ 225.99 USD

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$ 225.99 USD

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If your vacuum pump is noisy then it is only a matter of time before it fails, leading to idling issues and a loss of braking power. Replace yours with this OEM Pierburg Vacuum Pump to ensure the smooth operation of the vacuum system.

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