I have a 2002 Volvo V70 with 153,000 miles. Recently the air conditioning started blowing hot regardless of what setting it was on, but by turning it off for a while then randomly pressing the hot/cold and auto/manual buttons, it would blow ice cold for a while, then go back to blowing warm. When it was serviced recently, Volvo told me that the condenser is bent at the bottom but said it was working. Any ideas? I don't want to spend £600 or more on a new condenser if it's not that that's wrong.