I have an 06 Range Rover and it has been making a loud humming type noise every time I drive the car while it is trying to raise the vehicle. Generally when I park, I will lower the car and that is fine. When I start up and drive, the car will automatically go back to the normal height. While doing that (actually even longer) I can hear a pretty loud humming noise that is very annoying. I took it to the dealership and they said it was the compressor but that it was still working so their was nothing they could do. REALLY??? I only have a 3K to go before my warranty is out. Does anyone know if what they are saying is true? Any way to fix it now? Should it be fixed now? Any help would be appreciated.