Hi guys
As I was reversing from my driveway this morning my car started beeping loudly at me and a rather worrying message flashed up on the MFD - it was something like "STOP! Check coolant!".
I popped open the bonnet and (bear in mind I know f-all about this type of thing), the coolant level appears to be a little over the MIN mark. Certainly not empty anyway, as the warning message implies. So I continued on my merry way to work

So - I guess I should top it up a little? Stupid question, but what do I ask for in the local Motor Factors? Is there a particular type of coolant I should get?
And - I'm wondering was it just the very cold weather playing tricks with the car's sensors or something?