This is a genuine BMW interior sound switch, part number 61 31 8 363 638. The number stamped on the part is 61318363638; BMW's catalog files it under the short number 8363638. You will find it on our Electrical shelf, under Switch.
It fits the E36 sedan, coupe and convertible (318i, 320i, 323i, 325i, 328i and M3, 1992–1999), with the M42, M43, M44, M50, M52 or S50 and other engines — and the European-market versions.
BMW draws it on the Various switches (61_0938) 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.
