A discharge device for discharging an electrical charge and/or voltage to a housing portion via a shaft of a drive train of a motor vehicle, the housing portion delimiting a housing chamber, comprising:
- a first contact means for electrically and mechanically connecting to the shaft,
- a second contact means for electrically and mechanically connecting to the housing portion, wherein the first and the second contact means can be rotated relative to each other about a main axis,
- one contact means being in the form of a sleeve and the other contact means being in the form of a grounding rod, or the one contact means being in the form of a grounding rod and the other contact means being in the form of a sleeve,
- the sleeve having a contact chamber with an electrically conductive liquid, and the grounding rod being disposed partly in the sleeve so that the grounding rod is immersed in the electrically conductive liquid in the contact chamber,
- the sleeve and the grounding rod being electrically interconnected by the interposition of the electrically conductive liquid,
- wherein a bridging sleeve, the bridging sleeve being disposed in the contact chamber and the bridging sleeve electrically bridging a distance between the grounding rod and the sleeve at least partially.