My compressor is shot on my 89 325ix. It has a Bosch OEM #6452-8391- Bosch Sterling Silver 318is with some smoke.... 140 903 227 on it. Does anyone know if the Oem 6452-1385-930 Bosch 0-140-903-216 are interchangeable? It looks the same. The 216 PN seems to be easier to find?