Crankcase Pressure Regulator Valve

Commonly referred to as the "oil separator"
Mfg Part #
ECS Part #
Bavarian Autosport
$29.95 (Sale - Save 15%)
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Availability: Ships by Apr 27, 2022
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Product Details

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.

Crankcase breather valve used to purge the oil vapor from the engine block into the valve cover. This valve has 4 hoses connected to it, running to dipstick, valve cover, air intake.

You should also look into replacing your valve cover gasket when changing the separator.

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E36 323i M52 2.5L
BMW E36 323ic M52 2.5L
BMW E36 323is M52 2.5L
BMW E36 328i M52 2.8L
BMW E36 328ic M52 2.8L
BMW E36 328is M52 2.8L
BMW E36 M3 S52 3.2L
BMW E39 528i M52 2.8L
BMW Z3 2.8 M52 2.8L
BMW Z3 M Coupe S52 3.2L
BMW Z3 M Roadster S52 3.2L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.


ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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