I had my roadster in the shop a few weeks ago for a noisy AC compressor. Casey at the Denver Service Center unbent a hose and wrapped some insulation around it, which mostly got rid of the noise. Today I was charging up before leaving and got HVAC: Consolidated Compressor Fault(s) ID:1428 Data:0x30000000. The car is still drivable. I have an appointment next week. Could this just be the AC compressor? If so, does anyone have a ballpark on the cost? I know a BMW compressor is at least $300 and 6 hours of labor. Is it an off-the-shelf part and maybe something I could replace myself? Everyone seems to complain about how bad the AC is on hot days, but mine seems plenty cold. I could definitely tell when it was diverted, but that never lasted longer than a minute or two on the few upper 90 degree days we've had. I don't use it much below that.