An electric drive unit having an electric motor having a flange-mounted adapter that is attached to the electric motor and has a motor shaft extension for extending the motor shaft through the adapter. The electric drive unit has at least one sensor for measuring at least one operating variable of the electric motor and an evaluation unit for evaluating the operating variable(s) measured by the sensor(s). The sensor(s) and evaluation unit are arranged in and/or on the electric motor and/or adapter. The evaluation unit is designed to evaluate the measured operating variable(s) with respect to the need for maintenance and/or repair and to output a signal about the need for maintenance and/or repair via a signal transmission device for signaling the need for maintenance if the result of the evaluation of the operating variable(s) indicates the need for maintenance.