This is a genuine BMW bracket armrest, part number 52 20 8 176 213. The number stamped on the part is 52208176213; BMW's catalog files it under the short number 8176213. You will find it on our Interior Body shelf, under Seatbelts.
It fits the E46 sedan and coupe (320i, 323i, 325i, 328i, 330i and M3, 1999–2006), with the M52, M54, M56 or S54 engines — and the European-market versions.
BMW draws it on 4 diagrams, among them Rear seat centre armrest (52_0767) and Rear seat centre armrest (52_2380). It weighs about 438 g (1.0 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
