Volvo v50 2.0D Is there an “additive-empty” message or do you have to refill on suspicion?

Hello! I have a very simple question: Is there a corresponding message on the dashboard with the Volvo v50 D2.0 when the additive tank is empty? Or do you have to refill it blindly after a certain number of kilometres driven? I have the feeling that the tank is quite empty, I did not drive the car until 17,000km and do not know when and whether the tank was filled by the predecessor. Thanks already in advance!