Intermediate piece, right — a genuine BMW part, number 51 71 7 890 512. The number stamped on the part is 51717890512; BMW's catalog files it under the short number 7890512. You will find it on our Interior Body shelf, under Other Body equipment parts.
It fits the E46 coupe and convertible (M3, 2001–2006), with the S54 engine.
BMW draws it on 3 diagrams, among them Mucket / trim, entrance (51_3738) and Mucket / trim, entrance (51_4102). It weighs about 18 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.
