Valve Cover Vent Hose, BMW - F10 528i, F25 X3 28i (N52 Engine)

Vent hose from valve cover. Genuine BMW #11157581815

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Typically ships in 3-5 business days.

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Price:
$66.36

This hose is part of the 528i and X3 28i crankcase vent system on the N52 engine. This hose is the outlet line from the back of the valve cover to the oil separator, and includes foam insulation and a heating element.

Compared to the previous M54 engine's system, the late N52 CCV is much simpler but still prone to failure. The late N52 crankcase vent system (CCV) has a oil separator in the valve cover. The only external piece is this hose between the valve cover and intake manifold. This hose is insulated to prevent sludge from freezing inside the system. However, if the system is not working as intended too much oil in the intake air will lower the effective fuel octane, lead to drivability issues, and cause increased emissions. A completely blocked CCV has the potential for very serious engine failure (hydrolock) if liquid oil ends up in the intake. Signs of a failing CCV include: whistling noises in the intake, blueish smoke in the exhaust, high oil consumption, and thick white or yellow gunk under the oil cap.

This part is listed by BMW as BMW part number 11157581815 (11-15-7-581-815) and is described as Valve Cover Vent Hose for N52 engines in 2011 F10 528i and F25 X3. 

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.

BMW Fitments:

5 Series
F10 / F11 (11-16) > 528i N52 (2011)
X3 Series
F25 X3 (2011-2017) > X3 xDrive28i
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