Anyone heard about the new rules about to hit MOTs?

Do some people need to get nervous?

Believe it's been known about DPFs being removed causing failures, what else?

Do people who have not had the fix need to worry at all?

 

Look here for details:-

http://forums.moneysavingexpert.com/showthread.php?t=5780179

 

Thanks AG Falco

mot-inspection-manual-for-classes-3-4-5-and-7-from-20-may-2018-draft.pdf

 

Diesel particulate filters (DPF) should be checked for evidence that the DPF has been removed or otherwise tampered with. Where a DPF canister has clearly been cut open and re-welded, it should be rejected unless evidence can be provided that the canister was cut open for legitimate reasons, such as filter cleaning. 

 

 

So when you have the DPF internals removed just ask the guy doing it to write a letter on headed paper to say it was only opened to be cleaned 

59 minutes ago, gav_is_con said:

Do people who have not had the fix need to worry at all?

No.

MOT has never measured NOx, and will not with these changes.

 

Hmm,

 

Bit of a problem for my old Octavia as EML has been on for years (known EGR issue - but runs great). It also has a slight oil leak.

 

Well it is 17 on the 1st March - Fortunately that's when the MOT is due so the new rules won;t be in yet.

 

Saying that if I disconnect the battery for 30mins it clears the EML which can stay off for some time (can stay off for a week or so if you don't go on a longer run)

 

 

http://briskoda.net/forums/topic/443381-proposed-mot-changes-may-18 

"Emissions limits for diesels registered on or after 1st of January 2014 have been reduced. All diesels will now need to pass the limit that was set by the manufacturer when the car was new. This can be found on the VIN plate. For example the current limit for your diesel car may be 1.50. That could change to as low as 0.30 with the new rules."

 

That's annoying as mine was registered in Jan 2014. Had the same car been registered a few weeks earlier this wouldn't apply.

 

So what does this mean for the Superb which now has to meet the limit claimed by the manufacturer? Say you have the "fix" applied, even then, is it really going to meet that limit? Say you don't have the fix, or have it rolled back as I intent, how are they measuring it to ensure it meets the limit? 

@snowathlete

I could be wrong, but I think those 1.50 and 0.30 numbers are smoke opacity readings?  Nothing to do with NOx or the 'Fix', everything to do with presence/absence of DPF?

 

 

Time will tell what does come in the future, what Proposals become actual's, 

and what EU Directives come to pass, and then a BREXIT UK adopts, introduces, or ignores and puts off for sometime in the future.

latest-information-notice.pdf

1 hour ago, Wino said:

@snowathlete

I could be wrong, but I think those 1.50 and 0.30 numbers are smoke opacity readings?  Nothing to do with NOx or the 'Fix', everything to do with presence/absence of DPF?

 

 

Correct. In-service testing of diesel emissions has generally been limited to smoke opacity as it is a useful proxy for general engine health. That said I see no reason not to test for HC and CO as well when the equipment is in place to do so at the test centre.

 

If the DPF is functioning correctly there is nothing to worry about here. Even without a DPF, a properly maintained car should have no problem meeting that lower limit, especially since the test is carried out at no load.

Edited 24 January, 20188 yr by chimaera

1 hour ago, Wino said:

@snowathlete

I could be wrong, but I think those 1.50 and 0.30 numbers are smoke opacity readings?  Nothing to do with NOx or the 'Fix', everything to do with presence/absence of DPF?

 

 

Wino you are correct, we only measure the opacity, not the NOx levels, plus if the testing machines valve can't be opened when raising the engines rev's the the vehicle is deemed cleaned and will pass, shouldn't worry VAG car owner's is they can't rev above 2500rpm with out the vehicle moving, so they all pass.

Edited 24 January, 20188 yr by Ju1ian1001

2 hours ago, chimaera said:

Correct. In-service testing of diesel emissions has generally been limited to smoke opacity as it is a useful proxy for general engine health. That said I see no reason not to test for HC and CO as well when the equipment is in place to do so at the test centre.

 

If the DPF is functioning correctly there is nothing to worry about here. Even without a DPF, a properly maintained car should have no problem meeting that lower limit, especially since the test is carried out at no load.

Diesel's over here are tested under load, us testers have to the engine up to full revs and then let it idle, this can be done between 1 and 6 times, has to be carried out with the oil tempreture at 60 degrees C or above as well (the smoke machine's all have a tempreture probe on them that put in the dipstick tube.)

 

Also diesel engine's don't produce enough carbon monoxide to be measured and as diesel is an oil hydrocarbons would be present but again not considered high enough to measure.

13 minutes ago, Ju1ian1001 said:

Diesel's over here are tested under load, us testers have to the engine up to full revs and then let it idle, this can be done between 1 and 6 times, has to be carried out with the oil tempreture at 60 degrees C or above as well (the smoke machine's all have a tempreture probe on them that put in the dipstick tube.)

 

Also diesel engine's don't produce enough carbon monoxide to be measured and as diesel is an oil hydrocarbons would be present but again not considered high enough to measure.

How are you putting the engine under load? Revving it in neutral is the no load situation. Putting it under load would mean carrying out a road test or rolling road test.

Diesel engine are under load each time they are revved, dose not matter if it's not pulling the car along.

 

Diesel's compress the fuel to ignite it, therfore under load, even more so when the turbo spool up.

^^^ Good, because some will drive, 10,000, 20,000 , or more per year, load the car with passengers and luggage, tow a caravan, boat or the likes.

Putting the car engine under load.

 

Long time past when the EU should have had the Manufacturers results from testing, & the new Real World Testing  done as vehicles might be used, 5, 6, 7 seaters loaded with 100 plus KG dummies, 

boot full & even a trailer loaded giving the Co2 g/km,  NoX etc as they tested them before Type Approval and after it.

ie, as sold with full Options fitted. & as might drive on the roads.

Edited 24 January, 20188 yr by AwaoffSki

45 minutes ago, AwaoffSki said:

Good

It's not really right though. If just revving a diesel was hard work for it, they wouldn't be any good at lugging heavy loads around.

If they were ever properly tested millions of vehicles would be off UK roads. 

If VOSA and DVSA were ever catching all those Examiners that had been putting more vehicles through a test than there were working hours in a day 

it would not be just HMRC that catch them out.

 

If the Webcams were in all MOT Bays there would be less hooky MOT's available in the UK.

 

If MP's & Peers and cronies were not so big car enthusiasts then other enthusiasts would not be getting those Exempt MOT and VED classics.

 

Britain is good for Internal Combustion Engine Vehicle owners, so far it has been easy enough to keep vehicles on the road.

If there was checks on out of date Air Bags etc there would be many more newer classics off the road in the UK.

Garage owner guilty of faking MOT tests - GOV.UK.mhtml

Garage owners and testers face prison for MOT fraud - Garagewire.mhtml

Edited 24 January, 20188 yr by AwaoffSki

^ Man! You posted something without having a go at VW group, there's a first time for everything.

Spin on it fanboy!

I read it that vag vehicles WERE included

On 23/01/2018 at 21:18, silver1011 said:

So when you have the DPF internals removed just ask the guy doing it to write a letter on headed paper to say it was only opened to be cleaned 

 

Defect Category 

 

(a) Smoke opacity levels exceed the manufacturer’s specified limit.  Major

 

(b) Smoke opacity levels exceed default limit. Major

 

(c) Exhaust emits excessive smoke or vapour of any colour to an extent likely to obscure the vision of other road users. Dangerous

 

(d) Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour. Major

 

(e) Emissions test unable to be completed. Major

 

(f) Emissions test aborted because smoke levels are significantly in excess of the specified limit values. Major

 

(g) Engine MIL inoperative or indicating a malfunction. Major 

A mentioned earlier, it is a common misconception that removing the DPF automatically results in visible smoke.

 

Removing a DPF requires the sensors to be mapped out, as a result most owners opt to have a performance map fitted at the same time, this is when more smoke might be emitted.

 

If a standard map is installed and the car is mechanically sound then there shouldn't be any more smoke out of the exhaust.

 

Even pre-DPF on diesels, and now on petrol's it is good practice to get the engine nice and hot prior to the MOT test, this should also act to clear out any soot that has accumulated in the exhaust.