The disclosure relates to a system for the treatment of water formed during an operation of at least one fuel cell of a vehicle, having a cavity, a condenser and an underbody-side system outer wall, and is designed to bound an underbody of the vehicle, wherein the condenser is arranged between the cavity and the underbody-side system outer wall, wherein the cavity is connected via an inlet to the at least one fuel cell, wherein, when the vehicle is in motion, the condenser is acted upon by air of an airflow and is cooled, wherein the condenser is designed to cool water which, originating from the at least one fuel cell, flows into the cavity.