Genuine BMW part 17 11 1 437 362: Thermostat. The number stamped on the part is 17111437362; BMW's catalog files it under the short number 1437362. You will find it on our Cooling System shelf, under Radiator with mounting.
It fits every E46 body style (320i, 323i, 325i, 328i and 330i, 1999–2006), with the M52, M54 or M56 engines — and the European-market versions.
BMW draws it on 3 diagrams, among them Expansion tank, automatic gearbox (17_0141) and Expansion tank, automatic gearbox (17_0200). It weighs about 80 g (0.2 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
