Relay w.notch lock — a genuine BMW part, number 61 31 8 353 448. The number stamped on the part is 61318353448; BMW's catalog files it under the short number 8353448. You will find it on our Electrical shelf, under Switch. BMW has since replaced it with 8353447.
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 2 diagrams, among them Various Relays (61_0066) and Relay, two-pole make contact, mint green (61_4500). It weighs about 34 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.