Cable buckle tensioner — a genuine BMW part, number 52 10 8 234 963. The number stamped on the part is 52108234963; BMW's catalog files it under the short number 8234963. You will find it on our Interior Body shelf, under Tail trim.
It fits the E46 sedan, coupe and touring (320i, 323i, 325i, 328i and 330i, 1999–2006), with the M52, M54 or M56 engines — and the European-market versions.
BMW draws it on 3 diagrams, among them Wiring set seat (61_1220) and Safety Belt Front Left (72_0300). BMW's catalog calls for two of these at each place it is fitted. It weighs about 31 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.
