Connection plug w.notch lock — a genuine BMW part, number 61 35 1 391 725. The number stamped on the part is 61351391725; BMW's catalog files it under the short number 1391725. You will find it on our Electrical shelf, under Control units, modules.
It fits every E36 body style (318i, 318ti, 320i, 323i and 325i, 1992–1999), with the M40, M42, M43, M44, M50 or M52 engines — and the European-market versions.
BMW draws it on 7 diagrams, among them Various Relays (61_0066) and Various Relays (61_0565). It weighs about 21 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.