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CCV Oil Separator System

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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Bav Auto Crankcase Pressure Regulator Valve - E36 E39 Z3
Bav Auto Crankcase Pressure Regulator Valve - E36 E39 Z3
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Bavarian Autosport - Corporate Logo
T#:638090
Part#: 11151703484
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$ 31.19 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. 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.
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Bremmen Crankcase Vent Breather Hose - BMW E82/88 E9X N55 3.0L
Bremmen Crankcase Vent Breather Hose - BMW E82/88 E9X N55 3.0L ...
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Bremmen Parts - Corporate Logo
T#:640159
Part#: 11127584128
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$ 40.79 USD
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Connects to the CCV on the valve cover
Oil Separator Valve
Oil Separator Valve
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Bremmen Parts - Corporate Logo
T#:8677203
Part#: 11617531423
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$ 67.20 USD
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CCV Hose
CCV Hose
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Bremmen Parts - Corporate Logo
T#:30629663
Part#: 11157637521
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$ 45.89 USD
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PCV Valve Seperator
PCV Valve Seperator
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Bremmen Parts - Corporate Logo
T#:15511828
Part#: 11617533400
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$ 44.51 USD
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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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Bav Auto Intake Manifold Cover w/ PCV Valve - BMW E31 E32 E34 E38 M60 V8
Bav Auto Intake Manifold Cover w/ PCV Valve - BMW E31 E32 E34 E38 M6...
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Bavarian Autosport - Corporate Logo
T#:639843
Part#: 11617501562
Special Order: No Guaranteed ETA
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$ 50.99 USD
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An integral part of the emissions system, the PVC valve lets the crankcase breathe. This allows proper intake and exhaust flow, resulting in proper running and operation. Often split from underhood heat and age, this vents excess oil into the engine compartment. From 1974 to 2019, Bavarian Autosport was one of the premier vendors for BMW and MINI auto parts. We are happy to preserve the Bav Auto legacy by continuing to carry their high-quality products into the future. All Bav Auto parts will remain unchanged in design and sourced from the same OEM suppliers to ensure long-lasting reliability. We trust these parts, accessories, and upgrades so confidently that we back every Bavarian Autosport branded component with a 2-year warranty.
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Bremmen Crankcase Ventilation Hose - E39 E53 E60 E83 E46
Bremmen Crankcase Ventilation Hose - E39 E53 E60 E83 E46
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Bremmen Parts - Corporate Logo
T#:640147
Part#: 11611432559
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$ 18.76 USD
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Crankcase Vent Hose - From Valve Cover to Oil Separator - Fit BMWs with the M52 or M54 6 cylinder engine
CCV Hose
CCV Hose
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Bremmen Parts - Corporate Logo
T#:30629662
Part#: 11157642546
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$ 20.00 USD
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Vent Hose
Vent Hose
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Bremmen Parts - Corporate Logo
T#:30629665
Part#: 11157612996
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$ 21.50 USD
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Crank Case Ventilation Valve - Priced Each
Crank Case Ventilation Valve - Priced Each
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Bremmen Parts - Corporate Logo
T#:53326230
Part#: 11158647299
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$ 64.79 USD
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Crankcase Ventilation Pipe
Crankcase Ventilation Pipe
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Bremmen Parts - Corporate Logo
T#:53326229
Part#: 11158647962
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$ 159.99 USD
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Crankcase Vent Hose (3-Way Hose)
Crankcase Vent Hose (3-Way Hose)
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Bremmen Parts - Corporate Logo
T#:53538112
Part#: 11157581815
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This product was last offered at the strikethrough price on
05-30-2026

$ 34.39 USD
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Bremmen Mounting Grommet Seal - BMW E36 E39 Z3 E34 E38
Bremmen Mounting Grommet Seal - BMW E36 E39 Z3 E34 E38
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Bremmen Parts - Corporate Logo
T#:640144
Part#: 13411733217
Back Ordered
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$ 8.25 USD
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This grommet is located on the back side of the PCV or idle control valve

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BMW Mini
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