Jump to content


Photo

New Mot Requirements ( Dpf And/or Catalysts )

MOT Diesel DPF Particulate Filter Calayst

  • Please log in to reply
39 replies to this topic

#1 Howard1471

Howard1471

    Member

  • Budding Enthusiast
  • PipPip
  • 15 posts
  • Name: Howard
  • Ford Model: Focus 1.6TDCi Zetec Feb 2008
  • Year: 2008
  • Location: Nottinghamshire

Posted 08 February 2014 - 06:29 PM

I was informed when I recently took my car for it's MOT that as of 16th Feb 2014 the regulations have changed regarding DPFs and Catalysts.

 

Any car which is fitted with a Diesel Particulate Filter or Catalyst, as standard, when manufactured, must be fitted with said DPF and or Catalyst when tested.  If it is not fitted with the required item(s) it will be deemed to have failed the MOT.

 

I'm paraphrasing the official looking document my garage showed me.  I think everyone should be aware of the change.

 



Have something to contribute?

Sign in or register to start a topic...

Sign up to FOC Premium Membership To Remove These Ads

#2 Focus-Jonny

Focus-Jonny

    Heresss Jonny!!!!!

  • Budding Enthusiast
  • PipPipPipPip
  • 336 posts
  • Name: Jonathan
  • Ford Model: Ford Focus Mk2.5 Zetec S 1.6 Ti-vct
  • Year: 2010
  • Location: Antrim

Posted 08 February 2014 - 06:38 PM

A lot of places now that do deletes cut into the DPF and cat and gut them out or place a straight through pipe through the middle of them and weld them back up giving the illusion to an inspector that they are still in place and functional!

#3 mixmasterlooney

mixmasterlooney

    The Sexecutioner

  • FOC Supporters
  • 1,673 posts
  • Name: Kurt
  • Ford Model: Focus Zetec S
  • Year: 2010
  • Location: Greater London
Contributor

Posted 08 February 2014 - 09:56 PM

You do know this is what the original rule was right? Officially there is no changes at all becausevthe above was already apart of an mot

Sent from my GT-I9300 using Ford OC mobile app



#4 Howard1471

Howard1471

    Member

  • Budding Enthusiast
  • PipPip
  • 15 posts
  • Name: Howard
  • Ford Model: Focus 1.6TDCi Zetec Feb 2008
  • Year: 2008
  • Location: Nottinghamshire

Posted 09 February 2014 - 11:04 AM

The advice I was given when I had my DPF removed was that the particulates were not tested by the MOT and that having the DPF removed would not affect the outcome of the test. Similarly when I had my car MOT'd less than a week ago the garage consulted the document and then proceeded without issue, advising me of "the change".  So it's passed 2 years running.

If the rules regarding the presence of a DPF [where one is fitted as standard] has not changed then why would the Dept of transport ( or whatever they are called these days) feel the need to issue a notice to all MOT stations of a change as of 16 Feb 2014.

 

The important fact here is that MOT stations ( and I assume it's not just those that I have used ) have now been given the instruction to fail the vehicle.

 

I've started saving up for a new DPF :(



#5 mixmasterlooney

mixmasterlooney

    The Sexecutioner

  • FOC Supporters
  • 1,673 posts
  • Name: Kurt
  • Ford Model: Focus Zetec S
  • Year: 2010
  • Location: Greater London
Contributor

Posted 09 February 2014 - 11:30 AM

The word test is misleading. The rule has always been if the car left the factory with a dpf it must be fitted at the time of mot testing that has not changed.

"Test" what test are we talking about? Dpf are not tested by any equipment for emissions like the cat on a petrol. So what test is actually done? None, except the standard already applicable visual test that it is fitted assuming the dpf was fitted at factory.

Here is an example, london busses. Some were fitted with dpf after being registered, this was a cheaper option than replacing the busses with newer models, in this case the mot test of it being fitted does not apply because it was not fitted at factory therefore if fitted at the time of mot or not makes no dufference.

For a car if it had a factory dpf it would be checked during an mot if possible, (before and now after feb) that's the old and the "new" change. The other test done is a smoke test, and this is not a dpf specific test because a diesel can smoke with or without a dpf, the smoke test is visual although it can be done by equipment.

So as far as things go there is no "new" change atm the information is just very misleading.

The main point of this rule is eliminating straight pipe exhaust systems on a car that had a dpf. If your car left the factory with a dpf and you now have a straight pipe there is no need to buy a new dpf, simply visit a scrappy and buy an old clogged up dpf for pennies, have the internals chopped out and fit the cannister to your exhaust. It will pass the mot dpf test.

1. Is a dpf fitted to the car? Well yes I can see it.

2. Does the vehicle smoke excessively? No.

No further dpf related test is carried out

Sent from my GT-I9300 using Ford OC mobile app



#6 stevegtuk

stevegtuk

    Stevegtuk

  • True Ford Enthusiast
  • PipPipPipPip
  • 564 posts
  • Name: Steve
  • Ford Model: MONDEO
  • Year: 2006
  • Location: Yorkshire

Posted 09 February 2014 - 12:14 PM

Straight from the horses mouth

 

https://www.gov.uk/g...tice-1-2014.pdf



#7 Howard1471

Howard1471

    Member

  • Budding Enthusiast
  • PipPip
  • 15 posts
  • Name: Howard
  • Ford Model: Focus 1.6TDCi Zetec Feb 2008
  • Year: 2008
  • Location: Nottinghamshire

Posted 09 February 2014 - 12:39 PM

Thanks Stevegtuk.

 

"On 16 February 2014 Section 7.1 of the inspection manual will be amended to include a check for the presence of catalysts and particulate filters on diesel powered vehicles. Any vehicle where a catalytic converter or particulate filter is missing where one was fitted as standard will fail the test. "

 

This doesn't specify the contents of the DPF ( mine has had the guts removed and the original case refitted ) so maybe it hasn't actually changed anything in real terms.



#8 stevegtuk

stevegtuk

    Stevegtuk

  • True Ford Enthusiast
  • PipPipPipPip
  • 564 posts
  • Name: Steve
  • Ford Model: MONDEO
  • Year: 2006
  • Location: Yorkshire

Posted 09 February 2014 - 01:55 PM

You'll get away with the guts removed from cat and dpf, providing the car passes the smoke test and no warning lights come up.

 

The other thing is, the testers arent allowed to remove anything to inspect parts, so the engine cover and under shield, may be enough to obscure their vision of the cat, so decat pipes may get away.



#9 wase16ll

wase16ll

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 1,133 posts
  • Name: Tony
  • Ford Model: granada
  • Year: 1992
  • Location: Greater London

Posted 09 February 2014 - 03:42 PM

should be noted

DPF  was not included in the test till February, Catalysts have been part of the test for many years, though in the case of Diesels, was only a visual check..DPF and catalysts are completely different systems.

 

As it stands, presence of DPF is only visual, but it should be noted, that in the case of goods vehicles, VOSA released an update in February that if a goods vehicle is even suspected of having the DPF removed/deleted, then it will fail the test, it is then submitted to VOSA for appeal, in order for that appeal to be processed, it is up to the owner of the vehicle to remove all barriers etc in order for the DPF to be properly assessed and tested, it doesnt state that the appeal will go beyond just a visual test but it makes it clear its down to the owner of the vehicle to prove its not been removed/gutted/deleted.

 

this doesnt apply to cars, but it might give a clue to how far VOSA is prepared to go to stop this DPF tampering in the future.



#10 wase16ll

wase16ll

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 1,133 posts
  • Name: Tony
  • Ford Model: granada
  • Year: 1992
  • Location: Greater London

Posted 09 February 2014 - 03:46 PM

should also add, that in the case of Goods vehicles, it suggests that either the DPF is proved to be fitted or the tax class of the vehicle is changed to non DPF before a pass is issued



#11 artscot79

artscot79

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 7,198 posts
  • Name: arthur
  • Ford Model: focus mk2 ti-vct
  • Year: 2006
  • Location: Fife

Posted 09 February 2014 - 04:47 PM

after speaking to vosa they have stated its a visual check for the moment however they plan to change it next year 2015 so that gutting and rewelding dpfs will not pass the mot at present its visual they did state however that doing there mobile tests they can test the tailpipe fumes these roadside tests are going to become more common for all cars diesel and petrol and if its found to be non road legal which it will be with the dpf removed they will issue fines as for hid lights if the lenses are not correctly marked as being for hid lights and no working washer system is in place its a fail and you will require a garage to remove them fit the lighting back to normal and pay for a retest



#12 ChrisCooper

ChrisCooper

    Settling In Well

  • Members via FB
  • PipPipPip
  • 61 posts
  • Name: Chris
  • Ford Model: Focus
  • Year: 2009
  • Location: Leicestershire

Posted 09 February 2014 - 05:40 PM

Can't see roadside emmision testing being that practical really, for the main reason that emmision controls on both petrol and diesel engines tend to be more important when vehicles are first started. That's why cars doing short journies tend to have bigger problems with the emmisions control systems as they are working much harder. A modern engine when up to temperature should be pretty clean regardless of after-treatment. A DPF in particular will be doing most of it's work in the first 5 or so miles, hence why people who do regular journies of that sort of length tend to end up with them clogged. Catalytic converters also tend to be mainly needed during the first couple of miles. Unless they are going to be pulling people over and holding them for long enough for their engines to cool down then I can't see how they would get accurate readings, and anything that's going to take more than a few minutes isn't going to go down well with the public.

 

Either that or will they sit near or even inside carparks. VOSA might think like that, but their main interest is in heavy vehicles, so going around lorry and coach parks, or even depots, and asking people to start their engines so they can be tested is feasable, and along the lines of what the haulage and passenger transport industries are used to. Doing it for private cars I think would get controversial. Also, unless VOSA get a massive funding increase, I can't see it will effect many people anyway. In my time driving (and being driven before that), I've never been stopped by VOSA or even seen a checkpoint for anything but lorries and coaches. The only time VOSA and the police tend to be interested in private motorists is if they are doing a sting on street racing or meets with illegally modified cars.

 

That said, stricter emmision tests at MOT sound totally feasable.



#13 artscot79

artscot79

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 7,198 posts
  • Name: arthur
  • Ford Model: focus mk2 ti-vct
  • Year: 2006
  • Location: Fife

Posted 09 February 2014 - 05:47 PM

they specified they are currently in conversation with mot stations as to how and if its practicle to implement diesel exhaust fume testing the group that had this law changed are furious that the mot check does not go far enough and are currently wanting it changed again given the clout they have it will happen its just when



#14 wase16ll

wase16ll

    Ford Enthusiast

  • True Ford Enthusiast
  • PipPipPipPipPip
  • 1,133 posts
  • Name: Tony
  • Ford Model: granada
  • Year: 1992
  • Location: Greater London

Posted 09 February 2014 - 11:19 PM

roadside emmission tests have been happening in london for quite a while, long before the february rule changes, both cars and goods vehicles,

as for the DPF only need to be working at colder engine temperatures, sorry, thats wrong, particulate matter is released by diesel burners throughout the temperature range, the reason they block quicker on engines that do short journeys is because the DPF doesnt get hot enough to burn off the residue...but the fact is, when engine is cold, they still prevent the PM  from being released to atmosphere.

the catalyst is also required to work throughout the range, but its important that the system comes into full swing as quickly as possible..hence the need for heated oxygen sensors, to speed up the process where the catalytic can cope with emissions.

 

in both cases, you will get an accurate readout on emissions with a hot engine, not a cold one

 

people offering DPF deletes and promising no problems with passing mot's when done, are living on borrowed time...if anyone goes ahead anyway, then strongly suggest they ask them to back up those promises in writing,  in other words, let them put their money where their mouth is.



#15 stef123

stef123

    Ford Enthusiast

  • Management
  • 5,103 posts
  • Name: Stef
  • Ford Model: Mondeo ST TDCI
  • Year: 2006
  • Location: Scotland
Contributor

Posted 10 February 2014 - 09:14 AM

roadside emmission tests have been happening in london for quite a while, long before the february rule changes, both cars and goods vehicles,

as for the DPF only need to be working at colder engine temperatures, sorry, thats wrong, particulate matter is released by diesel burners throughout the temperature range, the reason they block quicker on engines that do short journeys is because the DPF doesnt get hot enough to burn off the residue...but the fact is, when engine is cold, they still prevent the PM  from being released to atmosphere.

the catalyst is also required to work throughout the range, but its important that the system comes into full swing as quickly as possible..hence the need for heated oxygen sensors, to speed up the process where the catalytic can cope with emissions.

 

in both cases, you will get an accurate readout on emissions with a hot engine, not a cold one

 

people offering DPF deletes and promising no problems with passing mot's when done, are living on borrowed time...if anyone goes ahead anyway, then strongly suggest they ask them to back up those promises in writing,  in other words, let them put their money where their mouth is.

 

I dont think anyone could put that any better!



Have something to contribute?

Sign in or register to start a topic...


Not what you're looking for?

Register now, we have a huge community of enthusiasts to answer any questions you might have




Also tagged with one or more of these keywords: MOT, Diesel, DPF, Particulate, Filter, Calayst

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users