In the Honest John section of Saturday's Telegraph it says:

"Diesels are taking a hit due to the gradual public realisation that the
emissions reducing kit does not last the life of the vehicle. Serious
failures are likely before the car reaches 100,000 miles and the cost of
replacement far outweighs any saving on fuel."

Can anyone explain what has to be replaced and perhaps why it is so
expensive?


--
Michael Chare

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On 13/08/2017 22:58, Michael Chare wrote:
In the Honest John section of Saturday's Telegraph it says:

"Diesels are taking a hit due to the gradual public realisation that the
emissions reducing kit does not last the life of the vehicle. Serious
failures are likely before the car reaches 100,000 miles and the cost of
replacement far outweighs any saving on fuel."

Can anyone explain what has to be replaced and perhaps why it is so
expensive?

The only thing I can think of is DMFlywheels, but even some petrol
engines have them.

DPFilters seem to last as long as petrol cats.

I'm wondering too.

On Sun, 13 Aug 2017 23:30:10 +0100, Fredxxx wrote:

On 13/08/2017 22:58, Michael Chare wrote:
In the Honest John section of Saturday's Telegraph it says:

"Diesels are taking a hit due to the gradual public realisation that
the emissions reducing kit does not last the life of the vehicle.
Serious failures are likely before the car reaches 100,000 miles and
the cost of replacement far outweighs any saving on fuel."

Can anyone explain what has to be replaced and perhaps why it is so
expensive?

The only thing I can think of is DMFlywheels, but even some petrol
engines have them.

DPFilters seem to last as long as petrol cats.

I'm wondering too.

I was assuming particulate filters which I think can fail at around 100k
miles if hard used.

They are expensive on some cars.

See
https://www.honestjohn.co.uk/askhj/a...s-the-average-
lifespan-of-a-dpf-

EGR valve as well.

Cheers



Dave R

--
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64

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Michael Chare wrote:
In the Honest John section of Saturday's Telegraph it says:

"Diesels are taking a hit due to the gradual public realisation that the
emissions reducing kit does not last the life of the vehicle. Serious
failures are likely before the car reaches 100,000 miles and the cost of
replacement far outweighs any saving on fuel."

Can anyone explain what has to be replaced and perhaps why it is so
expensive?

DPF - Diesel Particulate Filter. Go to, say, Mr BMW and get a new one
for your rep spec 320d and it'll come in the far side of a grand. The
units themselves are rather pricey aftermarket too (say £400.)

Trouble with DPFs is they're a bit of a solution looking for a problem,
catching soot and then trying to burn it off (using extra fuel) to turn
it into a different soot (that still gets punted out of the exhaust.)

However, cleaning them out is actually fairly straightforward with a
pressure-washer. Did a friend's 330d and it was far harder getting the
unit out past the engine mount than cleaning it.

--
Scott

Where are we going and why am I in this handbasket?

simple ...never buy a diesel ......

On 8/14/2017 1:49 PM, Jim GM4DHJ ... wrote:
simple ...never buy a diesel ......


Well if I was you, sor, I wouldn't start from here.