Oil Separator, BMW - E53 X5 4.4i/4.6is M62TU

This part is listed by BMW as BMW part number 11151705237 (11 15 1 705 237) and is described as the Oil Separator / Crankcase Vent Valve (CCV / PCV valve) for 1999-2003 E53 X5 4.4i and X5 4.6is models.

The crankcase vent valve is responsible for separating oil from the air inside the engine and air intake. Liquid oil is returned to the oil pan while oil vapors are sent to the intake manifold to be burned up during the combustion cycle. It's also known as a a PCV, CCV, oil separator, and a cyclonic separator system. Too much oil in the intake air lowers the effective fuel octane, leads to drivability issues, and causes 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 is a Genuine BMW oil separator with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.

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

BMW Fitments:

X5 Series
E53 X5 (00-06) > X5 4.4i M62 4.4L (99-03)
E53 X5 (00-06) > X5 4.6is M62