J-Lo wrote:It sounds like you have a similar problem to me.
Topping up the coolant reservoir under the hatch at the back doesn't add coolant to the main coolant tank. Despite having a full reservoir the coolant level was too low.
When adding coolant recently I had to raise the hatch above the engine and add coolant directly to the main tank.
Does anyone know if this is right?
It's not right really. It is likely that when your engine cools down and the coolant "shrinks", instead of sucking some from the top up tank, like it's supposed to, it is finding an easier route via a leak somewhere and sucking air back from that place instead.