Vent pipe — a genuine BMW part, number 11 61 7 533 398. The number stamped on the part is 11617533398; BMW's catalog files it under the short number 7533398. You will find it on our Engine shelf, under Intake manifold system.
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 70 g (0.2 lb). It also comes in BMW kit Repair kit, version for cold countries (7534237).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
