The engine air-oil separator is an emissions device located on the top right rear corner of the engine. The separator is responsible for collecting residual gases and vapors contained inside the crankcase and funneling them back into the intake manifold where they can be burned in the combustion chamber. This reduces the overall emissions of the engine.

When the separator fails, you will begin to see a large increase in the overall vacuum in the engine crankcase. In the most extreme cases, the air-oil separator fails to separate the oil from the air, and oil is then sucked into the intake manifold. Oil in the intake system is not healthy for the engine and it can foul spark plugs and destroy catalytic converters at the very least.

This is a two-hour project you can do yourself! We offer Genuine Porsche Air / Oil Separators from '97 - '10 Boxster & Boxster S. You can shop for the parts here in our catalog.

If you want to tackle this project yourself, check out our instructions here:
Installation of the Boxster Air Oil Separator

Let us know what questions you have.

Mark/Pelican Parts