Oh noes - the MOT man will be looking for DPF's
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- Welly
- The moderator formally known as Welton
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Oh noes - the MOT man will be looking for DPF's
Reads a bit 'early stages' but the intent is fairly clear I think:
http://garagewire.co.uk/news/mot-change ... stigation/
http://garagewire.co.uk/news/mot-change ... stigation/
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- steve_earwig
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Re: Oh noes - the MOT man will be looking for DPF's
How are they going to do that then? I suppose a boreascope up your tailpipe (
) isn't feasible and they aint gonna be allowed to dismantle it (especially if it's welded), so they'll only be able to use software which, seeing as how they'd have to have some pretty expensive software to be able to test for the presence of DPFs in every conceivable vehicle they're likely to come across I can't see them either getting the funding/getting away with bumping MOT costs up by a couple of 100 quid.
Verdict: Scaremongering.

Verdict: Scaremongering.
Unskilled meddling sin©e 2007
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Re: Oh noes - the MOT man will be looking for DPF's
Especially given all the dpf does is catch soot. Isn't that already tested for?steve_earwig wrote:How are they going to do that then? I suppose a boreascope up your tailpipe () isn't feasible and they aint gonna be allowed to dismantle it (especially if it's welded), so they'll only be able to use software which, seeing as how they'd have to have some pretty expensive software to be able to test for the presence of DPFs in every conceivable vehicle they're likely to come across I can't see them either getting the funding/getting away with bumping MOT costs up by a couple of 100 quid.
Verdict: Scaremongering.
- Welly
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Re: Oh noes - the MOT man will be looking for DPF's
This came up on the Volvo Forum where anyone who removes their DPF is hauled over the coals for eternity.
Someone suggested an up-yer-pipe sensor looking for particulate which should otherwise be captured?
I would suggest a thermal imager would show the internals of a DPF quite nicely? whereas a 'gutted' DPF would glow a nice even colour?
This'll have a lot of mini-cab drivers noses twitching.....
Someone suggested an up-yer-pipe sensor looking for particulate which should otherwise be captured?
I would suggest a thermal imager would show the internals of a DPF quite nicely? whereas a 'gutted' DPF would glow a nice even colour?
This'll have a lot of mini-cab drivers noses twitching.....
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
- Doggy
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Re: Oh noes - the MOT man will be looking for DPF's
TBH it's not that easy to tell whether it's there or not. On my bro's 2.2 406, we only found out by taking it off & looking inside. The casing's about 5mm thick so you can't tell by tapping the outside. Personally I'm not too concerned, the operative phrase from the article says:
"It is an offence, under the Road Vehicles Regulations to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet".
406's pre-date the emissions standard by some years, so only have to meet the same standards as non-DPF cars produced at the same time.
"It is an offence, under the Road Vehicles Regulations to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet".
406's pre-date the emissions standard by some years, so only have to meet the same standards as non-DPF cars produced at the same time.
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
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Re: Oh noes - the MOT man will be looking for DPF's
My dpf is a case is also very thick and also covered by a heat shield.Welly wrote:This came up on the Volvo Forum where anyone who removes their DPF is hauled over the coals for eternity.
Someone suggested an up-yer-pipe sensor looking for particulate which should otherwise be captured?
I would suggest a thermal imager would show the internals of a DPF quite nicely? whereas a 'gutted' DPF would glow a nice even colour?
This'll have a lot of mini-cab drivers noses twitching.....
- Bailes1992
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Re: Oh noes - the MOT man will be looking for DPF's
My current concern is my Euro6 Focus has a terrible hesitation issue which is EGR related which Ford have openly admitted to me they know about but have no intention of fixing.
I don't want to remove the EGR and DPF but I see no other option?
If the law changes then that's going to really f*ck me over with the idea of having a Focus that drives like it should one day.
I don't want to remove the EGR and DPF but I see no other option?
If the law changes then that's going to really f*ck me over with the idea of having a Focus that drives like it should one day.

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Re: Oh noes - the MOT man will be looking for DPF's
The law has already changed. They're just trying to come up with a method to determine if the dpf can has been gutted and refitted.Bailes1992 wrote:My current concern is my Euro6 Focus has a terrible hesitation issue which is EGR related which Ford have openly admitted to me they know about but have no intention of fixing.
I don't want to remove the EGR and DPF but I see no other option?
If the law changes then that's going to really f*ck me over with the idea of having a Focus that drives like it should one day.
Re: Oh noes - the MOT man will be looking for DPF's
I shall keep running my 406s. If the price starts going up we will know why.
Peter
Peter
- rwb
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Re: Oh noes - the MOT man will be looking for DPF's
That's a good point: what exactly does the air pollutant emissions standards it was designed to meet mean?Doggy wrote: "It is an offence, under the Road Vehicles Regulations to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet".
406's pre-date the emissions standard by some years, so only have to meet the same standards as non-DPF cars produced at the same time.
Some 2.0 HDi 407s (X-Line and Zenith) were manufactured without DPFs but were they designed to meet the same emissions standards as those that do have DPFs?
Current: 407 2.2 HDi 170 & C6 2.7 HDi.
Former: 406 1.9 TD; 406 HDi 90; 407 2.2 160; 307cc 180; 508 HDi 140.
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Re: Oh noes - the MOT man will be looking for DPF's
Captured this on Monday morning.

Current: 407 2.2 HDi 170 & C6 2.7 HDi.
Former: 406 1.9 TD; 406 HDi 90; 407 2.2 160; 307cc 180; 508 HDi 140.
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Re: Oh noes - the MOT man will be looking for DPF's
Why not just face up to it, diesel is BAD, it's dirty (
) & bad for our children,
Hydrogen is the future

Hydrogen is the future

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Re: Oh noes - the MOT man will be looking for DPF's
Leccy cars ftw (never mind the effects of lithium mining and coal fired power stations)dirtydirtydiesel wrote:Why not just face up to it, diesel is BAD, it's dirty () & bad for our children,
Hydrogen is the future
- Welly
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Re: Oh noes - the MOT man will be looking for DPF's
I read somewhere that, in theory, a DPF filters out the 'big bits' of soot but leaves 'micro particles' in the atmosphere - which is what causes breathing problems.
I have to say if I ever walk near to a modern dizzler the fumes from the exhaust smell almost like a fine dust and almost makes you feel sick. Compare that to an old XUD or Perkins that just stank of burnt dizzle I'd wager the old engines with the big sooty deposits are better as the pollution particles would not be as readily 'airbourne' as they are now.
I have to say if I ever walk near to a modern dizzler the fumes from the exhaust smell almost like a fine dust and almost makes you feel sick. Compare that to an old XUD or Perkins that just stank of burnt dizzle I'd wager the old engines with the big sooty deposits are better as the pollution particles would not be as readily 'airbourne' as they are now.
Cars in my care:
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
2021 Kia Spottage 1.6 Pez Turbo Dual Clutch Gearbox Trickery
2013 Renner Twingo - donkey work
Re: Oh noes - the MOT man will be looking for DPF's
Your probably not far wrong......Welly wrote:I read somewhere that, in theory, a DPF filters out the 'big bits' of soot but leaves 'micro particles' in the atmosphere - which is what causes breathing problems.
I have to say if I ever walk near to a modern dizzler the fumes from the exhaust smell almost like a fine dust and almost makes you feel sick. Compare that to an old XUD or Perkins that just stank of burnt dizzle I'd wager the old engines with the big sooty deposits are better as the pollution particles would not be as readily 'airbourne' as they are now.
Particles of a certain size (around 13 microns iirc) are deep lung respirable and difficult for the body to expel again smaller is okay as is larger, although short term irritation is still possible.