Genuine BMW part 11 61 7 501 566: Pressure regulating valve. The number stamped on the part is 11617501566; BMW's catalog files it under the short number 7501566. You will find it on our Engine shelf, under Intake manifold system. It supersedes the older number 1432558, so a part carrying that number is the same part.
It fits every E46 body style (320i, 323i, 325i, 328i and 330i, 1999–2006), with the M52 or M54 engines — and the European-market versions.
BMW draws it on 2 diagrams, among them Crankcase-Ventilation/oil separator (11_2194) and Crankcase-Ventilation/oil separator (11_6220). It weighs about 180 g (0.4 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
