Hi all - newbie here - thought I'd get involved with this thread as I have possibly a dual mass flywheel problem (so my mechanic says). Need a second opinion (as scared of spending £800 or whatever that would cost) - could you help me diagnose this please? When driving along, above perhaps 25mph, there is a subtle beating/thudding sound. This happens when in gear, in neutral, and with the engine off coasting along. However, when just sitting idle, the engine sounds absolutely fine, no knocking sounds, or any variance of sound when the clutch pedal is down. All the youtube videos I've looked at about dmf problems feature engines that don't sound right when idling. Could this be something else than dmf? Perhaps wheel bearings (though sound doesn't change when I turn corners), drive shaft, cv joint, etc.?? Any thoughts please? Peter