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BMW Intake Manifold Components (DISA, Vacuum, CCV, Etc) for BMW Z4 M Roadster S54 (2003-2008)

The intake manifold takes incoming air from the intake and distributes it to each cylinder. Over the years the manifolds have gotten more sophisticated and complex. Most of the additional work that it does is emissions-related - recirculating vapors back into the engine to be re-used. But there are also performance innovations such as BMW's DISA variable intake runners. All of the modern innovations have a part behind it and here you will find replacement components.

In some BMW models there are performance improvements with intake manifolds. These intake manifold upgrades use mostly BMW parts and are a direct replacement for your stock manifold. We offer manifolds and kits to make the conversion work easier.

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Oil Separator - E46 M3, MZ3, MZ4 with S54 engine

T#:12913

Part#: 11157840446

In Stock

Sale - Save 8% $ 155.01

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

$ 143.38 USD

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Sale - Save 8%

$ 155.01

This product was last offered at the strikethrough price on
06-15-2026

$ 143.38 USD

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This Genuine BMW oil separator helps to remove oil from the air vented from the crankcase via a hose from the valve cover. When the crankcase vent valve fails it can cause excessive oil consumption, engine fault codes and poor idle. This crankcase vent valve is also know as Oil separator valve or PCV.

This item fits the following BMWs:
2001-2006 E46 BMW M3
2001-2002 Z3 BMW Z3 M Roadster M Coupe
2006-2008 E85 BMW Z4 M Roadster M Coupe

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BMW Intake Manifold Components (DISA, Vacuum, CCV, Etc) for BMW Z4 M Roadster S54 (2003-2008)

Oil Separator - E46 M3, MZ3, MZ4 with S54 engine

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