Spacer rings set — a genuine BMW part, number 24 20 1 422 850. The number stamped on the part is 24201422850; BMW's catalog files it under the short number 1422850. You will find it on our Transmission shelf, under Control unit EGS.
It fits every E36 body style (318i, 318ti, 323i, 325i and 328i, 1992–1999), with the M40, M42, M43, M44, M50 or M52 engines — and the European-market versions. It also fits the E46 sedan (316i 1.9 and 318i, 1997–2001), with the M43 engine.
BMW draws it on 4 diagrams, among them A4S 270R/310R mounting parts/gaskets (24_0798) and A4S 270R/310R mounting parts/gaskets (24_1298). It weighs about 22 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.