twice this week coming home from work my air con has blown hot air for a few seconds then back to icey cold.

whats the problem ?

youve had air con on in this weather?? lol. does it do this from starting up or whilst the car has been on for a long time?

about 5 mins into the journey

Ask the dealer to look into it under warranty.

not again:mad:

I've had the same experience. Might be something to do with the thermostat sorting itself out. What seems to stop it is to move the temperature setting up a notch from the coldest setting.

Do you hear any sound when pressing the AC button???

Sound like air going through tight tubes??