After some ideas please folks. As I switched the engine off tonight the dash display came up with Coolant Level, then the message went away after around 5 secs. I checked the expansion tank and it's the same as it's always been. Any ideads why it might have done this? I started it back up again straight away and it didn't display the warning, I'm just worried that there is some kind of problem lurking!
It's a 2.2 Coupe, any info apreciated.