Last September I hit a deer while I was driving my 2004 1.6 Astra As a result the front end needed some work on it, including the aircon. The insurer's appointed company couldn't get the aircon going, so they sent it to the local Vauxhall dealer, who told me that they couldn't work out why it worked fine on the day they gassed up, but by the next morning when they went to move the car, it had lost it's gas. The central Vauxhall advice line eventually gave them some ideas, which seemed to do the trick. Now it doesn't seem to be working again. I've been switching it on during the winter every few weeks in accordance with manufacturers instructions too. Three questions spring to mind (you'll see from them I'm not mechanically minded) - Is there a way of telling that the system has lost gas without pressure gauges? It was 16.5 degrees here today. Should it feel cold in those temperatures? I normally only switch on when it's over 20 If it's degassed, do you think it's worth me taking it up with the insurance company who's repair work comes with a year's warranty? Thanks