Dpf Heres The Start Of It

[john h]

Wise words, good or bad the manufactures fit these parts for a reason

[henshaw]

Bought one off the internet in 2014. A lot cheaper than the Citroen one but  is quite rusty after 1 year (Citroen DPF rust free after 14 years). Car (2001 Mk1 2.2HDi) passed MOT with new DPF so it could be working ok (exhaust smells like it did with Citroen DPF ie doesn't smell like a diesel car). Will probably buy a Citroen next time as I think internet one will rot away before innards get clogged.

[paul.h]

This is copied from a post by John Douglas with the latest on dpf removal published in the Guardian newspaper:

 

Apparently the Government are so concerned about vehicles being on the roads with filters removed that they are in the process of devising a roadside test to show whether or not parts have been removed.

See this article.... http://www.theguardi...t-for-transport 

[fastjet]

Hi, I am new to the forum. I was looking at getting an 03 C5 Hdi 2.0 Ltr, will it have a Dpf filter fitted?

Thanks

[Rookie2]

I would hazard a guess and say "Yes" it has.

Don't let it bother you, believe me there will not be a test introduced which will physically look into the exhaust system to see if the DPF is fitted.It

will not ne introduced because it will vastly increase the amount of time taken to complete an MOT and that will lose the big comany's (Hi Q, etc) a fortune.

The cost in equipment will be horrendous for each MOT supplier and the cost of trainin and regulatory control will cost even more.

 

An MOT tester is NOT allowed to remove anything from the vehicle, if for example you have rusty brake pipes and decide to cover them in waxoyl, the MOT tester is not allowed to remove that Waxoyl to inspect, even if he suspects. He is not allowed to remove wheel trims to inspect how many wheel nuts are fitted. He is not allowed to remove the plastic under panels fitted underneath the floors of some cars, etc etc etc.

 

The MOT is a visual inspection, if it looks like it has a DPF fitted and it passes emmissions tests, then that is all the MOT tester can do.

 

There is a company I deal with from Bristol to whom you can send your ECU flash, for £33 they will remove the DPF and for another £33 they will remove the Catalytic Convertor. They email the rewritten flash back to you, you upload it to your ECU then before starting the car you smash out the DPF and the Cat insides. Leave the DPF tank in place (empty) and the exhaust injection pipes in place, looks just like the car that left the showrooms but drives better and is a lot less trouble.

 

You will get more MPG, a more responsive engine, no faults and it will sail through the MOT.

[paul.h]

The C5 110 and 90 bhp 2.0 hdi engines for the 2001 to 2004 model do not have a dpf, only this model with the 2.2 hdi engine. However, the 2004 to 2008 model has a dpf on all the hdi engines.

 

Whilst there are companies that will remove the dpf and the ecu software so the car does not think it is there, these companies are getting round the law by probably saying it is for off road use only. It appears it is not illegal to remove a dpf but it is illegal to drive a car with a dpf removed with a possible £1000 fine. Since it is now an illegal practice this forum can not recommend removing the dpf from a car that had one installed when originally made. Any posts that suggest removing the dpf or other parts of the car that can affect the emissions are the opinion of the poster and do not represent the views of the forum, its moderators and admin.

 

It also needs to be pointed out again that any modifications to a car should be notified to the car insurer. Failing to do this can invalidate the insurance which is one thing if you need to make a claim for damage to your car but if any third parties are claiming against you then if your insurer does not pay out can seriously affect your finances, or if they do pay out they may try to get the money back from you. It is one thing getting a car through the MOT but getting it through an insurance assessor looking for ways to not pay out may be a different matter. This topic says somebody had a claim and the insurer paid for a diagnostic and inspection to see if the car was standard before paying out http://www.briskoda.net/forums/topic/306194-insurance-and-dealer-related-questions-about-dpf-removal/ This article in the Guardian suggests there may be MOT changes 2017/2018 to better check for dpf removal https://www.theguardian.com/environment/2016/apr/17/diesel-particulate-filter-removal-air-pollution-department-for-transport On another forum I found a post by somebody who had told the insurer the dpf had been removed but then in 2014 the insurer said it had to be put back or they would not insure him - his solution was to sell the car (Honda).

[GooglyBear]

i came across this tonight... https://www.shropshirestar.com/news/uk-news/2018/05/16/drivers-confused-by-new-mot-test/

[paul.h]

There is some more info here, copied from this similar topic http://www.citroen-owners-club.co.uk/citroen/topic/21097-exhaust-catalysts-and-particulate-filters-on-diesels-mot-changes/?do=findComment&comment=95261

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Some details on the May 2018 MOT changes for diesels and exhaust smoke tests. The car will be smoke tested to its original design or default values if a value is not given on its weight plate https://www.gov.uk/g...emission-limits The car will fail if there is any smoke from the exhaust and also fail if there is any sign of a DPF being tampered with.

 

Beware if buying a diesel car that has not yet passed the MOT after 20th May 2018 since it might not pass later if the DPF has been removed.

 

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It was on the BBC news recently about the MOT certificate changes which will have 3 levels of warnings. Serious ones will say the car is dangerous and should not be driven so will fail the MOT, intermediate ones which will pass but should be fixed and minor ones.

[GooglyBear]

Kind of worrying... my C5 has smelt a bit sooty these last couple of weeks, i thought it was down to using supermarket fuel (Morrisons), but having used it all up and returned to my regular Shell the sooty smell is still around. It's due its MOT in a couple of months...

Surely the MOT test tester isn't carrying out a visual test of smoke levels?

[paul.h]

The MOT testers manual can be seen on-line and for the one applying from 20/5/2018 it says the smoke levels are tested using a meter but also visibly. A failure will result if the dpf looks to have been tampered with or welded up and the owner can not give a good reason. The diesel emissions test seems a bit brutal with lots of engine revving and making sure it is up to temperature. The procedure is in section 8.2.2 https://www.mot-testing.service.gov.uk/documents/manuals/class3457/Section-8-Nuisance.html#section_8.2

 

If you can only smell the soot and not see it then your car is probably ok, provided the dpf is still there and working.