Genuine BMW part 11 72 7 574 490: Vacuum pipe. The number stamped on the part is 11727574490; BMW's catalog files it under the short number 7574490. You will find it on our Engine shelf, under Secondary air system. It supersedes the older number 7546138, 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 Air Pump F Vacuum Control (11_2203) and Air Pump F Vacuum Control (11_6225). It weighs about 25 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.
