Cover, lock cylinder painted, right — a genuine BMW part, number 51 21 9 071 092. The number stamped on the part is 51219071092; BMW's catalog files it under the short number 9071092. You will find it on our Interior Body shelf, under Other Body equipment parts.
It fits the E46 sedan, coupe, convertible and touring (320i, 323i, 325i, 328i and 330i, 1999–2006), with the M52 or M54 engines — and the European-market versions.
BMW draws it on the Door mechanism front (up to 09/00) (41_1111) diagram. It weighs about 10 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.