FL5 Coolant header tank

[AndyDay1971]

Has anyone had a problem with the coolant header tank?
Online it seems people have had problems with it leaking has anyone had this please?
After I drive my car for a long run I can smell coolant but can’t find any leaks
Can anyone help?

 

[Chris.]

Not sure if @TiMtImInYtImTiM is active still, he's had one for a while and should know.