Please help, I have a C3 SX, 06 Plate, 12K on clock.
For some reason it overheats in the cold.
I have had the thermostate changed, check the amount of anti freeze in the bottle etc. everything seems ok.
Can you tell me why it does this after 3 miles.
If I have an air lock or the water is not getting to the rad properly, how can I check?

A very cold lady when it happens., December 2010