Genuine BMW part 64 52 8 375 442: Temperature switch. The number stamped on the part is 64528375442; BMW's catalog files it under the short number 8375442. You will find it on our AC & Climate Control shelf, under Other Heater and Air Conditioning parts.
It fits the E46 sedan, coupe, convertible and touring (320i, 323i and 328i, 1999–2005), with the M52 engine — and the European-market versions.
BMW draws it on 4 diagrams, among them Air-conditioner compressor (64_0727) and Air-conditioner compressor (64_0777). It weighs about 20 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.
