The AC blower/fan in my 03 V40 with 117K has been cycling on and off for a about a year-air blows cold when its working, so I'm thinking it might not be a refrigerant issue. If I turn the fan speed selector **** up to hi and back down it usually starts working again for a while. I usually just leave it on higher setting because that tends to malfunction less than slower speed settings. Any ideas where to start?