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CCV Oil Separator System

CCV Oil Separator System for BMW Z3 (1996-2002)

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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BMW E46 Crankcase Pressure Regulator Valve | S54 3.2L Engine ...

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T#:39059262

Part#: 11157840446

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$ 40.99 USD

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BMW E46 Crankcase Pressure Regulator Valve | S54 3.2L Engine is a crucial component that ensures proper crankcase ventilation by regulating oil vapor flow into the intake manifold, preventing excessive oil consumption and buildup. Designed specifically for BMW E46 models with the S54 3.2L engine, this valve helps maintain engine efficiency and performance. BMW engines are known to experience oil separator freezing in cold weather if not fully warmed up, which can lead to howling noises and oil leaks. To ensure a thorough repair, replacing the valve cover gasket when changing the separator is highly recommended.

Regulates crankcase pressure to prevent excessive oil consumption
Helps maintain proper engine ventilation for peak performance
Reduces the risk of oil separator freezing and associated leaks
Direct-fit replacement for BMW E46 models with S54 3.2L engine
High-quality materials ensure durability and long-lasting performance
Recommended to replace the valve cover gasket for a complete repair

Protect your BMW's engine from excessive oil consumption and leaks by replacing a failing crankcase pressure regulator valve with this premium-quality replacement.

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PCV Valve Separator

10X Entries Into Our F80 M3 Sweepstakes

T#:15511828

Part#: 11617533400

In Stock

Sale - Save 22% $ 44.99

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

$ 34.99 USD

Limited Qty Sale

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Qty

Sale - Save 22%

$ 44.99

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

$ 34.99 USD

Limited Qty Sale

Add to Wish List

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 all the components of the oil separator system together 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. Don't forget to order a valve cover gasket to make your separator change easier.

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Crankcase Pressure Regulator Valve

For vehicles with production date up to 09/1998

2X Entries Into Our F80 M3 Sweepstakes

T#:594300

Part#: 11151703484

In Stock

$ 50.99

This product was last offered at the strikethrough price on
08-31-2026

$ 48.99 USD

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$ 48.99 USD

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BMW has an issue with oil separators freezing in cold weather if the engine is not fully warmed up during driving. Common symptoms are a howling noise followed by oil leaks.