I've read on Honest John's website that fitting of a DPF was not required on cars registered prior to January 2011. My Superb was registered in May 2010 and I am wondering if there would be a problem with future MOT's if I had a DPF delete. Probably just wishful thinking. Any obsevations gratefully received.

 

Dave

Euro 5 introduced September 2009 & required DPF's as i remember it and then from 2011 a reduction in emissions on New Type Approved Euro 5's.

4 minutes ago, Offski said:

Euro 5 introduced September 2009 & required DPF's as i remember it and then from 2011 a reduction in emissions on New Type Approved Euro 5's.

 

Thanks Offski - I'd assumed that it wouldn't be that simple. 

 

Dave

If they can't see it's missing ,it'll pass

That is the current situation which might not be the same by next year in the UK.

So drivers / owners know the current legislation as do any businesses removing a DPF for a customer, and the owner / insurer should be aware of the current legislation on Euro 5 emission diesels that have a DPF as Original Manufacturers Equipment.

Ive also got a euro 4 and 5 mondeo , I had both dpf's removed before it was illegal as they'd clogged and wouldn't regen , they've both passed their respective MOT's a few times as you can't tell the dpf has been removed . If all else fails seek out a "friendly "mot garage ;-) . really I suppose I should  buy new dpfs

Edited 4 February, 20179 yr by peterposh

?

Until what date after September 2009 was it 'legal' to remove the DPF on a Euro 5 emissions diesel?

That's what I was told by the garage at the time, then they changed the mot to include the check :-/ So i'm lumbered now, Ive got to "cough up" for  aftermarket dpf's with the new checks

Edited 4 February, 20179 yr by peterposh

My skoda is up to 135 k so I'm expecting emission related management warnings at any time, so that'll probably be the best part of  1000 quid to sort

The introduction of emissions regulations is typically staged. Euro 5 was introduced for new type approvals on September 1st 2009 i.e. new models seeking type approval from 2009 were subject to Euro 5 regulations. Existing type approvals could stay on Euro 4 at that time. Euro 5 became compulsory for all vehicles offered for sale from January 1st 2011 on.

 

Regarding DPFs and roadworthiness testing, for now it seems any tests are visual. If the DPF appears to be there and there are no dash warning lights pointing to a fault everything is ok and you get your cert. I can see more technical solutions being sought in years to come.

 

In the US for years they have used the OBD readiness test as part of (or the entirety of) annual emissions checks. This is an ECU self test mandated by the OBD-II specification that checks for emissions control components in the engine on startup and sets a fault code if there's an issue. It's always been a difficult thing for tuners to work around since it looks for the physical hardware to be present and functioning in order to set readiness. A tester can plug in a diagnostic tool and see if readiness is set and if it's not the vehicle doesn't pass.

 

I don't know if the EOBD protocol supports or mandates a similar function (an initial search doesn't show up anything for me but I'll continue looking). If it doesn't iIt would be a logical next step and would certainly show up the lack of DPF internals among other things (removed/blanked EGR for example). I can see national testing bodies looking at other ways of using EOBD diagnostics to determine these things in the shorter term too.

UK Government & UK MOT's.  

http://garagewire.co.uk/news/government-investigates-dpf-removal-ahead-of-crackdown

 

Edited 4 February, 20179 yr by Offski