Method for reducing juddering vibrations in a motor vehicle drive train which has an internal combustion engine and an electric motor as motor vehicle drives which can be used together or independently, and a clutch device, wherein a rotating part of the drive train is driven using the internal combustion engine, and the rotational speed of the part is acquired, and wherein it is detected whether juddering vibrations are present, wherein when juddering vibrations are present, in order to actively damp the juddering vibrations using the electric motor, a torque is transmitted to the rotating part in such a way that in the case of a juddering vibration component in which the rotational speed of the rotating part decreases, the rotating part is driven using the electric motor, and in the case of a juddering vibration component in which the rotational speed of the rotating part increases, the rotating part is braked using the electric motor, characterized in that the motor vehicle drive train has the internal combustion engine, the electric motor, the clutch device and a double-clutch transmission with the drive part and a first input shaft as well as a second input shaft, in that the clutch device has a first friction clutch for connecting the drive part to the first input shaft, and a second friction clutch for connecting the drive part to the second input shaft, comprising the following steps: a) the friction clutches (K1, K2) are placed in an open position in which the first input shaft and the second input shaft are disconnected from the drive part, b) for a starting process of the motor vehicle, the double-clutch transmission is set in such a way that the first input shaft has a drive connection via a first gearspeed, and the second input shaft has a drive connection via a second gearspeed, to an output shaft of the double-clutch transmission, c) the first friction clutch is closed at least to such an extent that it can transmit a torque, d) it is detected whether juddering vibrations are present during the starting of the motor vehicle, e) if juddering vibrations are present, the torque is transmitted to the second input shaft using the electric motor whose rotor has a drive connection to the second input shaft, in such a way that in the case of a juddering vibration component in which the rotational speed of the second input shaft decreases, the latter is driven using the electric motor, and in the case of a juddering vibration component in which the rotational speed of the second input shaft increases, the latter is braked using the electric motor, f) the procedure continues with step d). a) the friction clutches (K1, K2) are placed in an open position in which the first input shaft and the second input shaft are disconnected from the drive part, b) for a starting process of the motor vehicle, the double-clutch transmission is set in such a way that the first input shaft has a drive connection via a first gearspeed, and the second input shaft has a drive connection via a second gearspeed, to an output shaft of the double-clutch transmission, c) the first friction clutch is closed at least to such an extent that it can transmit a torque, d) it is detected whether juddering vibrations are present during the starting of the motor vehicle, e) if juddering vibrations are present, the torque is transmitted to the second input shaft using the electric motor whose rotor has a drive connection to the second input shaft, in such a way that in the case of a juddering vibration component in which the rotational speed of the second input shaft decreases, the latter is driven using the electric motor, and in the case of a juddering vibration component in which the rotational speed of the second input shaft increases, the latter is braked using the electric motor, f) the procedure continues with step d).