Base plate left — a genuine BMW part, number 54 31 8 204 285. The number stamped on the part is 54318204285; BMW's catalog files it under the short number 8204285. You will find it on our Exterior Body shelf, under Other Sliding Roof / Folding Top parts.
It fits the E46 convertible (323i, 325i, 330i and M3, 2000–2006), with the M52, M54 or S54 engines — and the European-market versions.
BMW draws it on 3 diagrams, among them Folding top (54_0273) and Folding top (54_0274). It weighs about 330 g (0.7 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
