Hi guys...
my da9 (b18a) radiator reservoir always full (more than the max line), is there something wrong with it, or is it normal. i always check the radiator coolant every week, it seems the coolant went to radiator reservoir and reduce the coolant level in the radiator.

The temp gauge is normal, and there is no sign of leaking. I tried to top up the radiator coolant and left a bit of coolant (min level) on the reservoir. After a week the reservoir is full and coolant in radiator reduce. Is it normal?

ps: sorry if this already covered b4.
cheers