Connecting line — a genuine BMW part, number 11 61 7 504 535. The number stamped on the part is 11617504535; BMW's catalog files it under the short number 7504535. 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 30 g (under 0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
