This is a genuine BMW child savety switch, part number 61 31 1 387 857. The number stamped on the part is 61311387857; BMW's catalog files it under the short number 1387857. You will find it on our Electrical shelf, under Switch.
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 the Various switches (61_4877) diagram. It weighs about 16 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.
