Guys I've being having aircon issues for a while it would work for a while then would stop.

Yesterday replaced pressure switch and put in new gas ... It worked as it should

Today I get in the car and aircon isn't working I noticed that the fans on the engine aren't switching on I brought the car for a be of a spin switching on and off the aircon and eventually the fans switched on a blew in cold air any ideas why the fans are intermited working on and off

Wow, Superb III already has faults! :)  Think you've got the wrong sub-forum...!

Moved to Superb II sub forum.

Bump anybody any ideas my head is wrecked

Have a look on page 2 on this forum AC problems by Stuarttunstall, May help

I'd get it pressure tested, sounds like a leak tbh, once the pressure gets low it shuts down to prevent further damage.