The wording of the guidance notes makes no mention of tighter particulate emission values for DPF equipped cars, just the visual check to see if fitted.
However, I pulled this text from the notes...
"It is an offence under the Road vehicles (Construction and Use) Regulations
(Regulation 61a(3))1
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."
So it seems clear, a car with only the internals removed, and with an engine 'remap' to allow the car to run correctly is illegal, but will not fail an MOT test as long as the particulates are lower than the (currently VERY high) pass value.
Whereas, a car with a 'link pipe' fitted, or with obvious evidence of DPF tampering will fail.
Be nice to have a contribution from one of the remappers on this...
I suspect they will introduce another type analyser and/or reduce the pass level?
So the particulate filter is there to trap whatever it was designed to trap but then during the regeneration stage is the same crap not blown back out again
ie pootling about town DPF traps crap to keep punters happy then once you warm up and put your foot down int country give em it back again??!!
So the particulate filter is there to trap whatever it was designed to trap but then during the regeneration stage is the same crap not blown back out again
ie pootling about town DPF traps crap to keep punters happy then once you warm up and put your foot down int country give em it back again??!!
DPF means higher consumption, sounds like a contradiction me thinks.
Wait for the argument at MOT when the guy says, "your 2005 car has had the filter removed".
Have I to produce information from the VIN to show it never had one ?