Bracket, vacuum accumulator — a genuine BMW part, number 18 10 7 502 473. The number stamped on the part is 18107502473; BMW's catalog files it under the short number 7502473. You will find it on our Exhaust shelf, under Catalytic converter/front silencer.
It fits the E46 sedan, coupe, convertible and touring (325i and 330i, 2001–2006), with the M54 or M56 engines.
BMW draws it on 2 diagrams, among them Vacuum control, exhaust flap (18_0428) and Vacuum control, exhaust flap (18_0524). It weighs about 80 g (0.2 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
