Drive, longitudinal seat adjustment left — a genuine BMW part, number 67 66 7 011 735. The number stamped on the part is 67667011735; BMW's catalog files it under the short number 7011735. You will find it on our Instruments & Electronics shelf, under Other Electric drive unit/system parts. It supersedes the older number 7011741, so a part carrying that number is the same part.
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 2 diagrams, among them Seat, front, electrical system & drives (52_2846) and Seat, front, electrical system & drives (52_3118). It weighs about 1.0 kg (2.2 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.