Hengst Crankcase Pressure Regulator Valve AS830M
Turner Preferred.

Crankcase Pressure Regulator Valve

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.
Hengst Hengst
T#: 22064591 | Part#: AS830M
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26.31
SALE: $26.31 (27% OFF)
WAS: $35.99 on 05-03-2026

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

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Hengst Crankcase Pressure Regulator Valve AS830M
Crankcase Pressure Regulator Valve
$26.31

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.

Prop 65 WarningProp 65 Warning

Previous Revisions
  • 11617501566

Cross Reference
  • 2770621
  • 11617501566
  • AS830M

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Lifetime Replacement

This Product Is Covered By Our Lifetime Replacement Program

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If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

MAKE MODEL SUBMODEL ENGINE Special Fitment Notes
BMW E39 525i M54 2.5L Use vehicle selector to confirm fitment
BMW E39 528i M52 2.8L For vehicles with production date from 09/1998
BMW E39 530i M54 3.0L Use vehicle selector to confirm fitment
BMW E46 323Ci M52 2.5L Use vehicle selector to confirm fitment
BMW E46 323i M52 2.5L Use vehicle selector to confirm fitment
BMW E46 325Ci M54 2.5L Use vehicle selector to confirm fitment
BMW E46 325i M54 2.5L Use vehicle selector to confirm fitment
BMW E46 325xi M54 2.5L Use vehicle selector to confirm fitment
BMW E46 328Ci M52 2.8L Use vehicle selector to confirm fitment
BMW E46 328i M52 2.8L Use vehicle selector to confirm fitment
BMW E46 330Ci M54 3.0L Use vehicle selector to confirm fitment
BMW E46 330i M54 3.0L Use vehicle selector to confirm fitment
BMW E46 330xi M54 3.0L Use vehicle selector to confirm fitment
BMW E53 X5 M54 3.0L For vehicles with production date up to 09/2003
BMW E60 525i M54 2.5L Use vehicle selector to confirm fitment
BMW E60 530i M54 3.0L Use vehicle selector to confirm fitment
BMW E83 X3 M54 2.5L Use vehicle selector to confirm fitment
BMW E83 X3 M54 3.0L Use vehicle selector to confirm fitment
BMW Z3 2.3 M52 2.5L Use vehicle selector to confirm fitment
BMW Z3 2.5i M54 2.5L Use vehicle selector to confirm fitment
BMW Z3 2.8 M52 2.8L Use vehicle selector to confirm fitment
BMW Z3 3.0i M54 3.0L Use vehicle selector to confirm fitment
BMW Z4 2.5i M54 2.5L Use vehicle selector to confirm fitment
BMW Z4 3.0i M54 3.0L Use vehicle selector to confirm fitment
BMW Z4 3.0i N52 3.0L Use vehicle selector to confirm fitment
BMW Z4 3.0Si N52 3.0L Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.

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