I bought a 57 plate Feista Zetec from a small dealer in Feb and today's the first day I've tried out the air-con, and it doesn't make any difference at all when switched on! When I bought the car the dealer didn't offer a warranty, saying the car was still covered under the manufacturer's 3 year warranty. I (yeah, stupidly!) didn't follow this up to confirm that was the case, so don't know where I stand now..

Could it be something more than a re-gas that's needed? When switched on, there's no difference in air coolness, no strange noises or anything..