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Old 27-05-2008   #1
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Dual Mass Flywheel???

I follow 'Honest Johns' pages in the Saturday telegraph, where he has been a big fan of diesel cars. However he is now warning folks away from diesels for a couple of reasons, but particularly because of problems with 'dual mass flywheels' and associated clutch failures.

I have no idea what these terms mean but was wondering if my Dobbie (2007 1.9) has one? I hope not!

I'm hoping my trusty Dobbie will have a nice old fashioned simple clutch (like it's leaf springs!) and won't suffer from these woes.

Any help appreciated.

PETER
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Old 27-05-2008   #2
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Re: Dual Mass Flywheel???

Quote Originally Posted by Broadpete View Post
I follow 'Honest Johns' pages in the Saturday telegraph, where he has been a big fan of diesel cars. However he is now warning folks away from diesels for a couple of reasons, but particularly because of problems with 'dual mass flywheels' and associated clutch failures.

I have no idea what these terms mean but was wondering if my Dobbie (2007 1.9) has one? I hope not!

I'm hoping my trusty Dobbie will have a nice old fashioned simple clutch (like it's leaf springs!) and won't suffer from these woes.

Any help appreciated.

PETER
yours should have one! sorry! as my 2005 1.9 jtd had its replaced at a woeful 35k miles very disapointing and very expensive!!!!
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Old 27-05-2008   #3
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Re: Dual Mass Flywheel???

Mine's an '03, so I'm worried too.
Erm, roughly how expensive?

I need another bit of exhaust too, and a cambelt soon, and a new rear wiper motor....I've already had a front wiper motor and a new auxiliary drive belt (under guarantee this one) so this car of mine is heading towards expensive to run, and I've done fewer than 50,000 miles
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Old 27-05-2008   #4
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Re: Dual Mass Flywheel???

Usually the DMF doesn't cause a clutch failure, but replacing the clutch without the flywheel is a no-no...

A DMF is basically a flywheel made of 3 parts. An inner disc which bolts to the crank; a outer ring which has the teeth for the starter and the friction surface for the clutch plate; and a rubber filler which joins the two taking out small vibrations from standard clutch operation.

How expencive? About 400-450 for the flywheel making a + labour clutch change around 800-1300 depending on how difficult the job is. 1.9JTD should be closer to 800, some of us ex 2.4JTD owners paid the bigger number!
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Old 27-05-2008   #5
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Re: Dual Mass Flywheel???

yep i had to have a new clutch and they found the flywheel totally shot so had to be done too just the parts came to nearly 700 quid plus the dreaded labour! but it was totally different to drive after much smoother!, guess thats the joys of modern motoring!!
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Old 28-05-2008   #6
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Re: Dual Mass Flywheel???

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Old 28-05-2008   #7
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Re: Dual Mass Flywheel???

I'm beginning to wish I hadn't asked (although thanks for the helpful replies). I guess I'll be extra gentle on those hill starts.
Sorry to have depressed fellow owners
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Old 28-05-2008   #8
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Re: Dual Mass Flywheel???

Mrs_G recently had her 2nd new clutch - at about 305,000 miles. The garage examined the flywheel and said it was still ok - they had got a new one in just in case. So at 314,000 miles she is still on the original flywheel.
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Old 28-05-2008   #9
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Re: Dual Mass Flywheel???

Are these huge differences due to a change of design in the engine/transmission, or just that the vehicles have very different lives? (Motorway vs Town).
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Old 28-05-2008   #10
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Re: Dual Mass Flywheel???

Pete, if yours is the 120bhp model it should have a different and, according to other members, stronger clutch.
I presume the DMF is different too.
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Old 28-05-2008   #11
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Re: Dual Mass Flywheel???

Quote Originally Posted by Broadpete View Post
Are these huge differences due to a change of design in the engine/transmission, or just that the vehicles have very different lives? (Motorway vs Town).
i couldnt tell you as i had to have mine changed fairly soon after buying so what the previous owners did to it? they may have thrashed the living daylights out of it but i wud still expect it to last longer than 35k i wud say poor quality parts myself until im proved wrong! :P
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Old 28-05-2008   #12
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Re: Dual Mass Flywheel???

DMF are better designed/made than in the mondeo diesel days of almost continious failure.

Put it into perspective, how many diesels on the road in world,you will expect a small pecentage of failure due to some reason or other, unfortunally many are due to driver error.
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Old 28-05-2008   #13
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Re: Dual Mass Flywheel???

Thought I would add my experience.

Clutch went on my Doblo 1.9 JTD ELX (03) at 50,000 miles not too bad but probably would have lasted longer except for previous owner who used it to haul stuff from cash and carry. I was told I needed a new DMF but because it was out of warranty I took to a clutch specialist who reconditioned the DMF and fitted a new clutch for 335 total. Sold Doblo two years ago to a mate and he is now upto 90k, clutch and DMF still going fine even with a 140 bhp remap!
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Old 28-05-2008   #14
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Re: Dual Mass Flywheel???

Quote Originally Posted by NottsCharger View Post
Thought I would add my experience.

Clutch went on my Doblo 1.9 JTD ELX (03) at 50,000 miles not too bad but probably would have lasted longer except for previous owner who used it to haul stuff from cash and carry. I was told I needed a new DMF but because it was out of warranty I took to a clutch specialist who reconditioned the DMF and fitted a new clutch for 335 total. Sold Doblo two years ago to a mate and he is now upto 90k, clutch and DMF still going fine even with a 140 bhp remap!
sounds very good!!!

i wud be very interested if you could tell me for future reference who recon'd the dmf and did ur clutch very good price that!

many thanks
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Old 29-05-2008   #15
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Re: Dual Mass Flywheel???

Was called the the Clutch Centre, perhaps unsuprisingly, on Arnold Lane, Basford, Nottingham. If I can find the telephone number I'll post it up.

Interestingly it was the Fiat dealer JCS (Kegworth) who directed me there. If the Doblo had been under warranty they would have done the job themselves and fitted a new DMF or replacement solid flywheel as cheaper alternative.

DMF is designed to remove engine/transmission vibration making modern diesels smoother than old type diesels but you don't have to have one, standard solid flywheel was on alternative parts list for my 03 JTD!

Replacement is big part so you can understand cost of new one but is easily remanufactured, so you pays your money and takes your choice.
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