If during a trip the red warning lamp of the discharge suddenly lights up and you hear that something in the engine compartment hit the metal hard several times, then the V-belt is most likely broken. Be sure to stop and check!
All engines: never move on!
In this case, the coolant pump does not work, and the coolant that has stopped circulating in the engine block will instantly boil. Therefore, immediately install a new V-belt or have the machine towed to a workshop.