Air Conditioner noise from the engine on 2007 Suzuki Grand Vitara

When the airconditioner is switched on there is a 'whir' noise from the engine, when the aircon is switched off it stops - (like one of those kids toys)
Is this something serious that can cause damage and is it easily fixed?

Asked by for the 2007 Suzuki Grand Vitara
That is the compressor's clutch and most likely has to be replaced. Good news is you would just need the compressor and not the entire system replaced since it is still intact. Good luck.
1 more answer
could be compresssor or a/c clutch noise. have it ck'd by your mech