A method for operating a powertrain of a motor vehicle, wherein the powertrain comprises an internal combustion engine, a transmission and a friction clutch arranged there between in order to control a power flow between the internal combustion engine and the transmission, wherein the method comprises the steps of: • detecting clutch judder, wherein the detection of clutch judder is based on at least one predetermined vehicle variable, • analysing clutch judder characteristics by evaluating the at least one predetermined vehicle variable in order to: • determining a type of clutch judder, • selecting a judder countermeasure, based on determined type of clutch judder, from a number of predetermined judder countermeasures, and • executing selected judder countermeasure, wherein the determination of a type of clutch judder is based on a clutch judder frequency, and wherein the step of determining a type of clutch judder further comprises the steps of: • comparing the clutch judder frequency with an engine frequency, • evaluating if the clutch judder frequency matches the engine frequency or matches half the engine frequency, whereby in the determining a type of clutch judder step, if the clutch judder frequency matches the engine frequency or half the engine frequency it is determined that: the clutch judder is engine related, and wherein the step of determining a type of clutch judder is characterized by the steps of: during the engagement of the friction clutch • evaluating whether the highest rotational acceleration of a power transferring part in the powertrain started from zero rotational speed, • evaluating whether the clutch judder is engine related, whereby in the determining a type of clutch judder step, • if it is determined that the clutch judder is not engine related, and • if the highest rotational acceleration of the power transferring part in the powertrain started at zero rotational speed it is determined that: the clutch judder is related to the engagement of the friction clutch. • detecting clutch judder, wherein the detection of clutch judder is based on at least one predetermined vehicle variable, • analysing clutch judder characteristics by evaluating the at least one predetermined vehicle variable in order to: • determining a type of clutch judder, • selecting a judder countermeasure, based on determined type of clutch judder, from a number of predetermined judder countermeasures, and • executing selected judder countermeasure, • determining a type of clutch judder, • selecting a judder countermeasure, based on determined type of clutch judder, from a number of predetermined judder countermeasures, and • executing selected judder countermeasure, • comparing the clutch judder frequency with an engine frequency, • evaluating if the clutch judder frequency matches the engine frequency or matches half the engine frequency, the clutch judder is engine related, and wherein the step of determining a type of clutch judder is characterized by the steps of: during the engagement of the friction clutch • evaluating whether the highest rotational acceleration of a power transferring part in the powertrain started from zero rotational speed, • evaluating whether the clutch judder is engine related, whereby in the determining a type of clutch judder step, • if it is determined that the clutch judder is not engine related, and • if the highest rotational acceleration of the power transferring part in the powertrain started at zero rotational speed it is determined that: the clutch judder is related to the engagement of the friction clutch. • evaluating whether the highest rotational acceleration of a power transferring part in the powertrain started from zero rotational speed, • evaluating whether the clutch judder is engine related, • if it is determined that the clutch judder is not engine related, and • if the highest rotational acceleration of the power transferring part in the powertrain started at zero rotational speed it is determined that: the clutch judder is related to the engagement of the friction clutch.