Anyway, the coolant leak paranoia quickly set in (I discounted air con because I haven't been using it) and I have been having a good look round for leaks and found nothing.
Anyway, today when I was having a good clean around, and checking all my levels and topping up the washer bottle etc, I thought I'd check that that little drain hole in front of the windscreen under the bonnet was clear of muck. I gave it a poke with a wooden coffee stirrer and then poured a bit of water down it to clear it through.
This has probably been mentioned before, and I am probably a bit of a twit, but at least I know where my puddle was coming from



