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Old 25-05-2018   #16
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Re: Early Twinair DMF failure

Just to add to the thread my 105 twinair has had DMF failure at just over 37 k. the dealer has never seen one before. It does seem rare tbh.
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Last edited by caz360; 25-05-2018 at 07:42.
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Old 06-06-2018   #17
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Re: Early Twinair DMF failure

Hi all, just a quick update in case this helps anyone else who encounters the same fault. Fiat / Alfa came back with an offer of a 30% contribution to the repair, stating this was a take it or leave it offer.

After a written complaint with support from the dealer ( who themselves have done two other low mileage DMF replacements this year) , they came back stating they will cover 100% of the repair.

Final items needing replacement due to the DMF failure:

DMF
Clutch
CSC
Bellousing

Feels like a new car following this being done, was obviously getting worse over a period of time before finally causing gearchange problems.
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Old 06-06-2018   #18
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Re: Early Twinair DMF failure

I would think In these little cars with very little space under the bonnet, the DMF needs to be small, the smaller it is the less resilient it will be.

The main reason these have become mainstay in almost all modern cars is because they dampen vibrations from the engine into drivetrain and potentially the rest of the car, it’s another way to help decrease cabin noise and make driving the car a bit more relaxing.
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Old 07-06-2018   #19
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Re: Early Twinair DMF failure

Is it undersized though?

The flywheel on my 3 series has to put up with 380Nm of torque, diameter? 240mm.

Twinair 500/Mito/Punto puts out 145Nm and the diameter of the clutch is 200mm.

Cant be bothered doing the maths right now, but Id say the clutch and flywheel probably arent undersized. You expect a certain amount of failures, this is one of them and thankfully Fiat are doing the right thing.
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