Hello

I just tried to use my air conditioner in my 2008 bmw x5 and there is no cold air. I set the temperature to 16deg C and the vent setting to cold. Either press MAX, Auto or Manual does not help. Could it be low on Freon and do I have to do the full system charge (ie, evacuate, etc...)

What else can it be? Is it expensive to repair?

Thanks
Henry