dmf

[stevie1]

what is the dmf and what does it do,it seems like a common problem on the cdti.

[Pecojess]

Dual Mass Flywheel

[bygumlad]

its a dual mass flywheel which is a 'damped' flywheel to absorb vibration in diesel engines, vibrate like hell when they go wrong

[Pecojess]

http://www.youtube.com/watch?v=YnaXB...eature=related

[GazVXLINE170]

Stop dangerous Torque spikes - which cause excessive vibration - travelling through to the gearbox when starting the engine.

Gazza4

[stevie1]

Thanks for the replies,im just trying to get clued up on these common faults since ive only had my car 5 wks so i no what to keep an eye on,
cheers steve

[mark_647]

http://www.youtube.com/watch?v=bFnLM...eature=related

Take a look at this video, I know its VW but the same principals, look how its broke and what causes the vibration once its failed..

[wickedwillie]

Stop dangerous Torque spikes - which cause excessive vibration - travelling through to the gearbox when starting the engine.

Gazza4

Its a long time (many years) since I did any car theory stuff but by dipping the clutch at engine startup would this not prevent any vibrations travelling through to the gearbox?

[Ste]

Probably, and also reduce strain on the starter as it won't be turning the gearbox components either.

[Stevie-B]

Always did the clutch on start up... receommended in the manual as well.