This is a genuine BMW test device, part number 82 91 9 402 503. The number stamped on the part is 82919402503; BMW's catalog files it under the short number 9402503. You will find it on our Merchandise & Accessories shelf, under Other Universal Accessories parts. BMW has since replaced it with 9401929.
It fits the E36 sedan, coupe, convertible and compact (318i, 318ti, 320i, 323i, 325i, 328i and M3, 1992–1999), with the M40, M42, M43, M44, M50 or M52 and other engines — and the European-market versions.
BMW draws it on 4 diagrams, among them Alarm system (03_0984) and Alarm system (03_0985).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
