Dpf removal on used motors
- Thread starter molly 2
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Deleted member 2636
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worst thing ever fitted onto a diesel engine, especially if the vehicle is only used for short journeys
new hippys
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They are getting there with regards to regeneration, the lastest vehicles fitted with them do nt need a 30 minute blow every week, but they can be problematic. Most of the trouble is caused by the selling agents not informing the buyer whats required to keep the diesel particulate filter clean.
Some new renaults use an injector in the exhaust that injects diesel directly into the exhaust dpf which in turn increases the temperature up to over 500degrees to burn of the particulates (soot) . They can do this at any point,in traffic or on the go.
There are a lot of garages (myself not included) who have invested in equipment and software to remove the dpf and reprogram the vehicles ecu who now find the market less lucrative. It was only a matter of time before vosa made the removal or absence of them an mot failure.
Hopefully development of them will reach a point where they no longer are so much trouble. Until then as I tell people..keep the revs up and the gear low.:drive:
molly 2
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I have a new citrone Dispach. 2,0 120 hp any info or advice. Please
Deleted member 3011
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Certainly a good point - that goes for lots of other illegal mods such as HID lighting and suspension mods.
Another big cost item is buying a vehicle with just one ignition key. Even if you can get an equivalent from a locksmith it will be costly and a genuine manufacturer coded key can cost hundreds.
Another big cost item is buying a vehicle with just one ignition key. Even if you can get an equivalent from a locksmith it will be costly and a genuine manufacturer coded key can cost hundreds.
new hippys
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Is it a brand new dispatch? You should be ok. The 2.0 hdi was an altogether better option. The 1.6 was trouble. I spend a lot of time repairing those. Van or motor home?
Deleted member 2636
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Our local exhaust place that does the sexy stainless steel exhausts is doing very nicely out of this DPF idiocy
m1cxf
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Why permanently remove the DPF? Why not just knock out the insides, re-fit and re-programme the ECU. I doubt it would be detectable at mot test time.
TJ
TJ
new hippys
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they will do nicely out of refitting them too.:mad1:
new hippys
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you can with some, some have a dpf/catalyst which seperates, some you can because you can get to them from either end..others not so lucky. the early dpfs were a lot more trouble specifically the French stuff, and even vw and audi could be problematic, but hopefully with the new generation dpfs they should nt (fingers crossed) be trouble.
new hippys
jonkil
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Yes very dooable... Do tons of them and no issue at MOT at all. Can map most so emissions are normal and it boosts power too.
As for the newer filters..... not so sure they will be any better.
Teutone
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when walking around Newark showground I saw quite a few Motorhomes for sale with a "Catalitic Converter Removed" sign in the window. Wonder what implications that has for a prospective buyer?
I certainly would insist of having one fitted if it is supposed to be there. Or at least I would want a new one given with the Motorhome if I buy it.
I certainly would insist of having one fitted if it is supposed to be there. Or at least I would want a new one given with the Motorhome if I buy it.
molly 2
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That's wot I'm talking about molly 2 op
Teutone
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DPF and a catalitc converter are two DIFFERENT devices. Cat is fitted further upstream in the exhaust system.
But could end up in same cenario. So far, you don't need a catalitic converter to pass an MOT. Because nobody CHECKS the emmissions on a diesel engine. Only smoke
is checked and measured (what the DPF is for).
So as soon as the VOSA adds the Cat to the list as well, you WILL need it fitted if the vehicle was supplied with one.
But could end up in same cenario. So far, you don't need a catalitic converter to pass an MOT. Because nobody CHECKS the emmissions on a diesel engine. Only smoke
is checked and measured (what the DPF is for).
So as soon as the VOSA adds the Cat to the list as well, you WILL need it fitted if the vehicle was supplied with one.
new hippys
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Peugeot 407 1.6 hdi, it has a split cat/dpf fitted together
new hippys
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also if the vehicle qualifies for a cat test..there should be one..
richardstubbs
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Yes you do. There is a change to the MoT requiring that if a DPF or Catalytic converter was fitted from new, then it has to be fitted. A lack of either is a fail. Nothing to do with emissions, it's a visual check only.
Section 7.1 of the MoT Inspection manual:
3. On spark ignition engine vehicles that qualify for
a full catalyst emissions test and all
compression ignition vehicles check the
presence of catalytic converter(s) and
particulate filter(s).
Reason for Rejection
3. A catalytic converter or particulate filter missing
where one was fitted as standard.
The documentation is here: MOT Documentation Contents Page
It's always been illegal to remove them, or technically to use a vehicle without them fitted but it amounts to the same - the vehicle was type approved with all the emission control devices and removing any of them means that it no longer complies. The only change is that it'll fail the MoT before it's impounded. Not that I've ever heard of that happening but it can.
Agreed that the DPF is a pain though, especially if you do lots of short journeys.
Tco
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So what was the probe doing in my van's exhaust pipe at MOT time? My van is a 2.2hdi boxer 2003 and is not fitted with either filter.
K9d
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I drive a Fiat Doblo 2013 model for work, because its all short journeys the DPF light regularly comes on, the cure for this is via a combination of pedal presses putting the van into DPF regenerate mode, the van will then sit there for up to 10 minutes holding itself at 2,000 rpm to clear the light. It seems to me that in the interest of saving the planet 10 mins revving its nuts off is not the way to go.