Your 850/S70/V70/XC70’s Air Conditioning System could use some imrpovements.
Typically it fails very high percentage on these cars. If it’s not too late, you can stretch the lifetime of this system with MadeInJapan’s advice:
Another thing you can do, but is difficult to keep the flap up under the windshield cowl, it so take a long hose attached to as powerful of a vacuum cleaner as you can and see if you can suck any debris out of the Evaporator location… you’ll hit the turbines of the A/C blower fan which is directly below this channel but still, you might be able to suck up any loose stuff that may be on its way to getting stuck down in there. I suppose you could also reach things better with a small flexible hose, going through, under the glove box from within the cabin by actually taking the blower motor out to help with access. I’ve personally never done this though have thought about it.”
Welcome to Volvo news, help and DIY fixes. We feature the Volvo Repair Database, the best Volvo Forum, and an awesome monthly Volvo newsletter. Joining is always free!