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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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Crankcase Vent Valve - E36, E39, Z3

10X Entries Into Our F80 M3 Sweepstakes

T#:14288

Part#: TMS14288

In Stock

Sale - Save 26% $ 51.99

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

$ 38.23 USD

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Sale - Save 26%

$ 51.99

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

$ 38.23 USD

Add to Wish List

The crankcase vent valve (CVV) holds and releases oil vapors that build up in the engine. It's the same type of system previously known as a PCV valve and the same deficiencies exist. Over time, the CVV will become saturated and clogged with oil. When this happens, the oil-rich vapors from the engine will back up into the intake tract and eventually into the combustion chamber. The oil added to the gasoline/air mix will cause misfires, carbon deposits, rough running, and blue smoke out the tailpipe. Replacing the CVV every 70,000 miles will ensure the correct and clean ventilation of oil vapor.

Replacement of the CVV can be done without removing the intake manifold. But replacing it during an M50 Manifold upgrade is the perfect time.

Included:
11151703484 - crankcase vent valve
13411733217 - sealing grommet

This item fits the following BMWs:
1996-1999 E36 BMW 323is 323ic 328i 328is 328ic M3
1997-1998 E39 BMW 528i
1997-1998 Z3 BMW Z3 2.8
1998-2000 Z3 BMW Z3 M Roadster M Coupe

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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

Add to Wish List

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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