[Fabio]

Quote: Originally Posted by Goonery (original)

Keeps the engine at optimum operating temperature once its warmed up, but from your earlier post in the other thread it sounds like you have a leak in your expansion tank radiator or heater pipe.

The coolant in MINI engines is contained in a sealed pressurized system so it really should not need topping up between services unless its overheated and the excess pressure has blown a pipeclip seal or joint somewhere

cheers, hopefully its not too serious and is covered by warranty