CCV Oil Separator System for BMW 3 Series E46 (1999-2005)

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BMWs oil separator and crankcase ventilation system is excellent at what it does when properly maintained. Always inspect any visible hoses when you are under the hood and follow the manufacturers replacement schedule.
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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
In Stock
Sale - Save 2% $ 85.93

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

$ 84.32 USD
Free Shipping
Sale - Save 2%
$ 85.93

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

$ 84.32 USD
Free Shipping

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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Genuine BMW - Corporate Logo
T#:12628
Part#: 11157834056
Ships in 1 day
2% off MSRP $ 230.99

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

$ 225.99 USD
Free Shipping
2% off MSRP
$ 230.99

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

$ 225.99 USD
Free Shipping
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. We recommend replacing this hose when replacing the oil separator #11157840446.

This item fits the following BMWs:
2005-2006 E46 BMW M3
2006-2008 E85 BMW Z4 M Roadster M Coupe
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Genuine BMW Cold Climate Crankcase Pressure Regulator Valve
Superior performance for both warm and cold climates
Genuine BMW - Corporate Logo
T#:12455
Part#: 11617533400
Ships in 1-2 days
2% off MSRP $ 119.99

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

$ 117.99 USD
Free Shipping
2% off MSRP
$ 119.99

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

$ 117.99 USD
Free Shipping
GENUINE BMW PRESSURE REGULATING VALVE:117059

We sell this part as part of a larger kit that includes all the hoses required BMW Crankcase Vent, PCV, and Oil Separator Systems
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Genuine BMW Emissions Service Kit - E46 M3
For vehicles with manual transmission only and production date up to 09/2004
Genuine BMW - Corporate Logo
T#:375194
Part#: 11157840446KT1
Ships in 1 day
$ 392.99

This product was last offered at the strikethrough price on
07-06-2026

$ 390.99 USD
Free Shipping
$ 390.99 USD
Free Shipping

Genuine BMW Emissions Service Kit - E46 M3
For vehicles with manual transmission only and production date up to 09/2004
Genuine BMW - Corporate Logo
T#:375196
Part#: 11157840446KT3
Ships in 1 day
$ 397.99

This product was last offered at the strikethrough price on
07-06-2026

$ 395.99 USD
Free Shipping
$ 395.99 USD
Free Shipping
Genuine BMW Emissions Service Kit - E46 M3
For vehicles with SMG gearbox and production date up to 09/2004
Genuine BMW - Corporate Logo
T#:577309
Part#: 11157840446KT5
Back Ordered
$ 613.99 USD
Free Shipping
$ 613.99 USD
Free Shipping

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