The dual mass flywheel (DMF) plays a significant role in ensuring that today’s vehicles with internal combustion engines run very smoothly. The integrated spring and damping system largely decouple the torsional vibrations from the rest of the driveline. When the DMF needs to be replaced due to a defect after high mileage, owners often want a cheaper repair alternative, such as a single-mass flywheel. ZF Aftermarket imparts the necessary knowledge regarding troubleshooting, maintenance and replacement to interested workshops as part of its training programme. For this reason, we strongly recommend an intensive fault diagnosis is carried out in the entire engine periphery before removal, to identify the correct cause and avoid consequential damage to the DMF. Servicing this drive component requires a trained eye and a great deal of detailed knowledge about the interaction with the transmission and clutch.