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Heads Up Diesel Owners

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  • Excuse me, but aren't plenty of cars LEGALLY driving around without DPF like the Fabia 1 vRS. Or are you getting confused and really mean no DPF, AND no cat either ..... ?   As it seems like you ar

  • My god are you lot STILL going on about DPFs that aren't even fitted to MK1s ? I don't think anyone is actually paying any attention to that on here, like it was said we DON'T own DPFs   As for cats

  • I cant see no cat

Awful news! 

Good job I have a friendly Mot garage ;)

They announced that they were thinking of doing that last year.

My cousin had lots of problems with his dpf because he lives on isle of wight and there arent many roads where you can get upto speed to keep it clear.

I told him to get it removed and his garage warned him of this rule, so he got rid of diesel now and gone with new octavia petrol.

Am i right in thinking that mk1 fabia vrs doesnt have dpf?

So it just people that have had cat removed, in which case cant you just get one of those cats fitted that have had the guts cut out? Least then it still looks like its on.

I thought Diesel's were subject to a smoke opacity meter.. which measures the denseness of the smoke coming out the back? 

They are but i dont think the cat effects it that much plenty of people on here manage to pass the mot. Maybe its a back hander thing. Heres a fiver if you ignore the thick black smoke thats choking you mr mot man.

Friendly MOT man for the win!

Not a problem though, can easily get a fake cat put in ;)

There is no dpf on the mk1 vrs

There is no dpf on the mk1 vrs

Correct, however Matt was pointing out about the cat :)

Would having a catalytic converter that has been hollowed out or had pipe welded inside it pass then?

 

As in it's just a visual check- look under car "yep that looks like a catalytic converter".

 

Diesels only have a smoke density check. Even without a cat they it won't make much difference and the test is done with the engine with no load. Most diesels smoke when under load.

 

Phil

Its a pain in the arse as ive had my removed, however, im sure there will be ways round it.

 

Ive had petrol cars decatted for years and never had an issue.

Its a pain in the arse as ive had my removed, however, im sure there will be ways round it.

 

Ive had petrol cars decatted for years and never had an issue.

 

Yeah I can see a lot of people having the same issues after previously, quite legally, having theirs removed.

 

You could also look at getting hold of an old cat and have it split open and welded around the current exhaust pipe to make it look like it has one.

 

Phil

Agree with you Phil-E, in fact there's a well-known (bit not particularly well-liked performance place in Chesterfield that offers such a service; opening up the DPF, removing the gibbons and re-welding it shut (with appropriate VCDS input I'd guess?)

Bizarrely, the DPF warning came on in my Insignifica today "Diesel Part. full, continue driving"

A quick run up the A617 and back at 70mph in 4th sorted it

Played hell with the average mpg figure though...

So the mot guy needs to visually check it has a cat for it to pass?

I cant see no cat

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Sports-cat FTW..

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So the mot guy needs to visually check it has a cat for it to pass?

Yes now it does. You can smash the inside out of your original cat apparently. That way it still looks like one is there but no internals.

Decat'ing doesn't really do much for performance anyway unless you are going for big power. Same for exhausts/intakes/air filters.

Could you just say it's further up the exhaust, I.e nearer the manifold in the engine bay?

They can't remove parts to check, so your under guard and bonnet keeping it out of 'sight'

It's just as handy to have a spare down pipe at the ready for MOTs.

 

It's as big a joke as them check for ARBs.

Funny that the MOT is basically a minimum requirements test for road worthyness yet they still check for parts which are totally irrelevant to the safety or operation of the cars.

Funny that the MOT is basically a minimum requirements test for road worthyness yet they still check for parts which are totally irrelevant to the safety or operation of the cars.

 

There is more to safety and road-worthyness than just if it has working brakes or will disintegrate on the motorway.

Yes I know that but there are things they check for which are a little pointless.

I was a tester for about 4 years and to be honest the test was a joke. Stuff like brake pipes coming back for retest covered in grease which you couldn't remove knowing full well it was the same pipe and shoddy welding repairs covered in underseal yet petty stuff like a decat on a diesel they're clamping down on. Think I'll weld a hollow eurocat around my pipe when it's time for test if it needs one on.

Modern high pressure diesels without a dpf are lethal to everyone around them. If you follow a car without a dpf fitted your car will quickly become a gas chamber that will poison you. You cannot keep these unseen particulates out of your car. You will breath them in. Pedestrians also breath in this poison. Your cars internal filtration system will not take out the harmful particulates (that cannot be seen) that will get into the cabin for you and your passengers to breath in. After that your lungs become impregnated with the particulates and they stay there for life. Some of them get into your blood stream where they cause problems with your brain, heart and kidneys, also the lungs. You can look forward to cancer, heart disease and strokes plus many other serious diseases (as per the recent BBC programs about diesel particulates and the damage they do). That's why there is a law to say you have to have one fitted and you cannot deviate legally from the standard setup. Yes, I know some people argue it's legal. It is not. You can check with the dot and they will tell you. From 2016 the gas analyser will come into play for a diesel to pass the MOT. It must not emit nano particulate above a certain level. New equipmenet will be used. Non dpf cars spray particulates everywhere and you cannot see them. It has little to do with the amount of smoke emitted. Non dpf cars will fail and there may be penalties for owners but as yet I've not been told what they will be. Roadside checks are to be introduced too to catch offenders who will then, I hope face criminal prosecution. Amazes me how irresponsible some individual are. Sorry if this offends but I like my air clean for me and my family. Don't you?

^^^ +1.  Anyone that removes their DPF should be made to breathe in their own particulates for a year and then decide if it was a good idea.

Would having a catalytic converter that has been hollowed out or had pipe welded inside it pass then?

 

As in it's just a visual check- look under car "yep that looks like a catalytic converter".

 

Diesels only have a smoke density check. Even without a cat they it won't make much difference and the test is done with the engine with no load. Most diesels smoke when under load.

 

Phil

 

Exactly.

 

Plus the smoke desity sensor is basically just a light sensor.

So the MOT tester can always get the readng they need by forgetting to put it up the exhaust pipe and holding their finger a bit over it instead...

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