I have a three-year-old MkV Golf 1.9TDi with 36,000 miles, almost all of which have been clocked up on cruise control in fifth gear at between 60-70mph. It is just out of warranty, of course. After road testing the car my local dealership has told me that the dual mass flywheel (DMF) has deteriorated and will need to be replaced along with the clutch, total cost just shy of £1,000. By the way, it was being road-tested for braking noise, not transmission noise or vibration. I am flabbergasted that such a gently used drivetrain could fail at such low mileage. Might there be something about my driving style, which puts undue strain on the DMF? Is it possible that the dealership is pulling a fast one? If the DMF has indeed failed then is it really necessary to change the clutch assembly at the same time?