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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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Crankcase Pressure Regulator Valve
Crankcase Pressure Regulator Valve
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:22064591
Part#: AS830M
Ships on Aug 10, 2026
Sale - Save 27% $ 35.99

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

$ 26.31 USD
Free Shipping on orders $49 and up
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Sale - Save 27%
$ 35.99

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

$ 26.31 USD
Free Shipping on orders $49 and up
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.
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Oil Separator Valve
Oil Separator Valve
5X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!
Hengst - Corporate Logo
T#:22064583
Part#: AS815M
Ships on Aug 10, 2026
$ 64.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 64.99 USD
Free Shipping on orders $49 and up
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.
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FTP Motorsport PCV Valve Upgraded Replacement - N54
FTP Motorsport PCV Valve Upgraded Replacement - N54
FTP Motorsport - Corporate Logo
T#:583063
Part#: SG84036
Special Order: No Guaranteed ETA
$ 60.00 USD
Free Shipping
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$ 60.00 USD
Free Shipping
Add to Wish List
The OEM plastic PCV valve does not hold pressure well even when brand new. What this means is that when the turbochargers are making boost, pressurized air can become forced backwards through the valve and back into the crankcase. Depending on the condition of your PCV valve this can range from irritating to dangerous as a pressurized case can cause all sorts of issues. Additionally, if your valve cover is cracked due to age or has a bad gasket you are more than likely experiencing a pressure leak either internally or externally. These two features can cause even a low-mileage N54 to run like a tired elephant, sometimes even unlocking a special bonus function known as "Limp Mode". The solution is to replace any failed components and upgrade the PCV valve to something more capable withstanding the abuse of a turbocharged environment. FTP Motorsport has you covered with this solid aluminum valve assembly. It is essentially the same thing that came in your car from the factory, made out of aluminum. The internal components have also been made to fit tighter and outlast the life of an off the shelf replacement. No, this won't be the very last PCV valve you buy, but it will most certainly alleviate a lot of headaches common to N54 owners. And if you're tuned, big twin or single swapped you need one of these yesterday.
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