Operating liquid tank with pump assembly of multi-part construction

An operating liquid tank for a motor vehicle, comprising a tank wall enclosing a tank volume that is fillable with an associated operating liquid, a filling arrangement designed for introducing the associated operating liquid into the tank volume, and a removal arrangement designed for the removal of the associated operating liquid from the tank volume, wherein the removal arrangement comprises a pump assembly with a pump and a pump drive, the pump assembly comprises at least two assembly components that are formed separately from one another and are coupled magnetically to one another by a magnetic coupling, the at least two assembly components including a first assembly component as a drive component that comprises at least one part of the pump drive and a second assembly component as a conveying component that comprises a conveying part of the pump that is drivable by the pump drive relative to a conveying component housing for movement, wherein the tank wall extends between the drive component and the conveying component and physically separates the conveying component located on an inner face of the tank wall from the drive component located on an outer face of the tank wall, wherein the drive component comprises at least one stator of an electric motor, wherein the conveying component comprises a rotor of the electric motor, and wherein the magnetic coupling between the drive component and the conveying component is implemented by the magnetic field existing between the stator and the rotor during operation of the electric motor.