From: nigel nailhead on
On 19/03/2010 08:07, Rob Graham wrote:
> On 19/03/2010 00:22, nigel nailhead wrote:
>> On 19/03/2010 00:20, Duncan Wood wrote:
>>> On Fri, 19 Mar 2010 00:10:20 -0000, nigel nailhead <blank(a)blank.blank>
>>> wrote:
>>>
>>>> VW Passat 1.9 tdi late 2001
>>>>
>>>> The clutch is starting to slip and I suppose I need to replace parts.
>>>> I find that replacing the DFM (dual mass flywheel) is recommended.
>>>>
>>>> It is an expensive item and seems to have a slightly dodgy reputation.
>>>> It seems there is the option of a cheaper aftermarket, solid (ie
>>>> conventional) flywheel.
>>>>
>>>> The solid one would be a lot cheaper. Would it last longer?
>>>>
>>>
>>> Yes
>>>
>>>> Would the extra vibration be significant?
>>>>
>>>
>>> That's a pays your money & takes your choice question, you'll notice it,
>>> wjether or not you'll care is another question.
>>>
>>>> Any other pros or cons?
>>>>
>>>
>>> Well in theory it also helps make the gearbox & cv joints last longer.
>>
>> Anyone noticed a difference in practice?
>
> I have a diesel Mondeo. It needed a new DMF. I was first told that I
> could have a solid one and wouldn't notice it. I then was told that this
> only applied to vans. I suspect that the manufacturers would not fit one
> if they did not think it was necessary, particularly given the bad
> reputation they have.

I wonder if is just about making diesels seem smoother to discerning
customers. I wonder when the extra vibration would show up.
From: nigel nailhead on
On 19/03/2010 08:08, Adrian wrote:
> nigel nailhead<blank(a)blank.blank> gurgled happily, sounding much like
> they were saying:
>
>> VW Passat 1.9 tdi late 2001
>>
>> The clutch is starting to slip and I suppose I need to replace parts. I
>> find that replacing the DFM (dual mass flywheel) is recommended.
>
> Wise.
>
>> It is an expensive item
>
> Not as expensive as having to get to it all again in a year when the DMF
> fails.
>
>> It seems there is the option of a cheaper aftermarket, solid (ie
>> conventional) flywheel.
>>
>> The solid one would be a lot cheaper. Would it last longer?
>
> Yes.
>
>> The original clutch has not reached 100K miles. My clutches normally
>> last forever. Could the DFM be responsible for reduced clutch life?
>
> Very unlikely.

In fairness to the DFM then I should point out that it is probably the
friction plate which is gone and for all I know (haven't looked at it
yet) the DFM could be good for another 100K?

>Have you had this Passat from new?

No I've only done half the mileage on it so clutch could have been just
about done when I got it.

From: Adrian on
nigel nailhead <blank(a)blank.blank> gurgled happily, sounding much like
they were saying:

>>> The original clutch has not reached 100K miles. My clutches normally
>>> last forever. Could the DFM be responsible for reduced clutch life?

>> Very unlikely.

> In fairness to the DFM then I should point out that it is probably the
> friction plate which is gone and for all I know (haven't looked at it
> yet) the DFM could be good for another 100K?

It could, yes. But, really, do you want to risk it?
How much are you being quoted for labour to replace the clutch, and
what's the marginal cost of swapping the flywheel at the same time?

>>Have you had this Passat from new?

> No I've only done half the mileage on it so clutch could have been just
> about done when I got it.

Entirely possible. A neighbour recently purchased a c.6mo/10k mile Audi
A4 TDi. It needed a new clutch shortly afterwards. He was not amused.
From: Adrian on
nigel nailhead <blank(a)blank.blank> gurgled happily, sounding much like
they were saying:

> I wonder if is just about making diesels seem smoother to discerning
> customers.

That's _exactly_ what it's about.
From: nigel nailhead on
On 19/03/2010 11:45, Adrian wrote:
> nigel nailhead<blank(a)blank.blank> gurgled happily, sounding much like
> they were saying:
>
>>>> The original clutch has not reached 100K miles. My clutches normally
>>>> last forever. Could the DFM be responsible for reduced clutch life?
>
>>> Very unlikely.
>
>> In fairness to the DFM then I should point out that it is probably the
>> friction plate which is gone and for all I know (haven't looked at it
>> yet) the DFM could be good for another 100K?
>
> It could, yes. But, really, do you want to risk it?

No not really. The only thing I hate more than working on cars is paying
someone else to do it.


> How much are you being quoted for labour to replace the clutch, and
> what's the marginal cost of swapping the flywheel at the same time?

I'm planning on DIY, so marginal cost is cost of DMF which is about £218.





>
>>> Have you had this Passat from new?
>
>> No I've only done half the mileage on it so clutch could have been just
>> about done when I got it.
>
> Entirely possible. A neighbour recently purchased a c.6mo/10k mile Audi
> A4 TDi. It needed a new clutch shortly afterwards. He was not amused.

10K!

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