....I have a look under my bonnet about once a week (well, it's just an excuse to handle all that luverly lightweight black shiny carbonfibre ) and I noticed my coolant level had suddenly dropped about 3/4 of an inch one morning after a freezing cold night (unheated garage).I phoned my friendly dealer and he said top it up with a bit of water to a 'mark' and check it every day and come back to him if it continued to lose.It's happened once more but only during that very cold snow spell we had and without any dashboard warnings being activated.While having the 60k miles cambelt kit change, they pressure tested the coolant line and found no leakage or problem but have replaced the coolant (£21.36 for 3 units).I would post a pic of my coolant liquid but this is more interesting : -
