This is a genuine BMW snow chain system Rud-Matic, part number 82 12 9 401 498. The number stamped on the part is 82129401498; BMW's catalog files it under the short number 9401498. You will find it on our Merchandise & Accessories shelf, under Other Universal Accessories parts. BMW has since replaced it with 0004471.
It fits the E46 sedan and touring (320i, 323i and 328i, 1999–2005), with the M52 or M54 engines — and the European-market versions.
BMW draws it on 4 diagrams, among them Snow chains (03_2878) and Snow chains (03_2880). It weighs about 6.0 kg (13 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
