BMW Genuine AUC Sensor - Automatic Recirculated Air Control for 840Ci 840i 850Ci 850CSi 735i 735iL 740i 740iL 750iL 525i 530i 535i 540i M5 3.6 318i 318is 318ti 320i 323i 325i 325is 328i M3 M3 3.2 740i 740iL 740iLP 750iL 750iLP 525i 528i 530i 540i 540iP M5 320i 323Ci 323i 325Ci 325i 325xi 328Ci 328i 330Ci 330i 330xi M3 BMW Genuine AUC Sensor - Automatic Recirculated Air Control Please see Product Description below for vehicle compatibility. Manufacturer Warranty: 24000 miles or 2 years Quantity within package: 1