I'd be grateful for some help. The air con on my 2010 Volvo XC60 D5 (205) stopped working, an air con recharge didnt help so my garage replaced the air con compressor. The air con is working fine now but at 14-1500 revs I get a whining noise which goes away when the air con is turned off, even with the fan still on. The garage changed my auxillary belt which didnt improve things. They are planning to replace the compressor under warranty but if there's nothing wrong with it I may be stuck with labour costs. The noise isn't very audible from under the bonnet but is very loud inside the cabin of the car. Any ideas???