Bear with me, I'm a bit of a noob...
Today I got the message "add coolant" on the dash of my 07 S3. The temp gauge is running at normal temperature - are the two unconnected?
I had the thing serviced for the 1st time a week or so ago for some ridiculous fee, surely these things get topped up then?
What do I need to buy, where from and why is it telling me to add coolant if the engine temp is normal?