I felt this summer my A/C was a lot louder than last year and I could feel a weird vibration in the wheel with it was going full speed to cool the car. So I took it in to the SC to have them look at it. They didn't feel the loudness was a problem but did find that my intake actuator for the HVAC was stuck which caused an undue strain on the HVAC system for pulling in air. They replaced that part once they got it in and now I feel the system is quieter and does not have the vibration anymore. It's not silent by an means but it's more in line with what I remember from last summer.