DPF: from the 16th of February there will be an amendment on a section of the MoT inspection Manual a check for presence of a catalytic converter (I'm sure most know this already) and now a check for a diesel particulate filter. Any of these missing where one was once fitted is an instant fail.

Lovely, we will see what happens and how soon it happens.

 

http://briskoda.net/forums/topic/297243-dpf-removal-check-to-be-part-of-uk-mot-test-from-february-2014

http://briskoda.net/forums/topic/297375-dpf-who-is-worried

http://briskoda.net/forums/topic/297681-new-mot-rules-will-fail-cars-that-have-dpf-removed-effective-feb-2014

Or,        How friendly you are with your MOT man?

Or, you have a transfer box completely obscuring any view to it.

Hoping to hear from the MOT testers on here when they have to fail their first vehicle because of testing a vehicle where they can identify the MOT is removed where it was fitted as standard.

 

Any MOT testers here that can post their 'New Directive' and any notes on the procedure required to identify were a DPF has been removed or the Internals Tampered with or Modified?

I know someone with a petrol car that has had the cat removed by cutting the box open and breaking the 'cat' out. After this a car with no cat should fail emissions but I know it passed the emissions test with flying colours. So you look under the car and see the cat and an obvious weld where the box has been manufactured

You could never tell it's been removed because it looks factory made.

You are a MOT tester are you not, so what is the Procedure you have now for changes from 16/2/2014 ?

You are a MOT tester are you not, so what is the Procedure you have now for changes from 16/2/2014 ?

There is no procedure really. The only way to check is via an emissions test on petrol cars. And for diesels (and petrol cars that pass emissions) check that the DPF or cat has not been removed and replaced with a straight through pipe welded at either end.

I know whats what with Petrols and Catalytic converters,  

 

so thats the New Instructions with Diesels is it,

 'Visually Check where you know the vehicle was fitted with a DPF at Manufacture, if not present, it is a Fail'. ?.

As far as anything else goes the people that make these rules up are 'cuckoo' as someone who works in rather a high position for vosa said to me.

Lets hope all the companies who have removed the DPF have kept them and now offer to refit and remap the car to tell it, "it now has a DPF"

 

 

That'll be £600 Thank You

I know whats what with Petrols and Catalytic converters,

so thats the New Instructions with Diesels is it,

'Visually Check where you know the vehicle was fitted with a DPF at Manufacture, if not present, it is a Fail'. ?.

Yes

Fit it back for MOT test and remove it once passed or bung your tester an extra £ 50 cash ( no i did not say that :p

Seriously though I won't be buying another Diesel because of all this. They are more aggro than they are worth now unless you do lots of motorway and hard driving.

Edited 3 February, 201412 yr by Matt Bodycombe

Fit it back for MOT test and remove it once passed or bung your tester an extra £ 50 cash ( no i did not say that :p

Seriously though I won't be buying another Diesel because of all this. They are more aggro than they are worth now unless you do lots of motorway and hard driving.

I do neither motorway work nor do I drive "hard" yet in 78k miles with the Yeti I have never had a DPF problem.

So that is incorrect.

The main issues with dpfs were on early cars like the PD170 that were bodged to get them working with them. A mate had a CR170 with a dpf and had no issues with short trips and the odd longer run. 

The sting will come when people come to sell the cars as dealers will be more observant/wary than an MoT tester. As covered in the various other threads just have to wait and see how it goes but basically it sounds like the MoT tester is only required to visually assess whether the DPF is there or not and give the owner the benefit of the doubt! Really need a particulate emission test included to be included, maybe that is coming over the horizon?

Many have no issues, good economy, even great economy, then regenerations,

and as the DPF gets older, and Regenerations are more regularly, the Good or Great Economy is just so so economy,

then the running cost needs to include a replacement DPF.

Or get shot and go back to the less smell fuel pumps.

 

Each to there own,

and often people get on great with their DPF equipped vehicle.

 

Funny how many Taxi's/Mini Cabs where having them removed due to being more of a PITA than something of a benefit to the wallet.

There is one question that no one has asked. What about the older cars that dont have a DPF or CAT fitted?

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I know whats what with Petrols and Catalytic converters,  

 

so thats the New Instructions with Diesels is it,

 'Visually Check where you know the vehicle was fitted with a DPF at Manufacture, if not present, it is a Fail'. ?.

The testers at present don't know any more about this than what you do.  We haven't been given any method of testing or refusal criteria yet.

There is one question that no one has asked. What about the older cars that dont have a DPF or CAT fitted?

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No issue, they never had them.

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Many have no issues, good economy, even great economy, then regenerations,

and as the DPF gets older, and Regenerations are more regularly, the Good or Great Economy is just so so economy,

then the running cost needs to include a replacement DPF.

Or get shot and go back to the less smell fuel pumps.

Each to there own,

and often people get on great with their DPF equipped vehicle.

Funny how many Taxi's/Mini Cabs where having them removed due to being more of a PITA than something of a benefit to the wallet.

There does appear to be a number of companies offering dpf cleaning services. Allegedly they can return them to full capacity and the cost is significantly less than a replacement.

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There is one question that no one has asked. What about the older cars that dont have a DPF or CAT fitted?

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If they never had them then it doesn't apply!

Just like lots of other things in the test.

So is this going to apply to any age then? Not just affect Euro IV onwards say? 

 

Could be an issue for the fabia if so - it hasn't had a cat since it was 18 months old...

I do neither motorway work nor do I drive "hard" yet in 78k miles with the Yeti I have never had a DPF problem.

So that is incorrect.

I do mainly urban and extra urban (25 miles to Canterbury from Medway occasionally). You pays your money and you takes your choice but the advice of my Skoda dealer and the experience of friends having to have forced regens, means that I would rather not take the risk. If I bought a Yeti i would probably go for the 1.8 TSI. A mate and I tried one at an Allams test day and it was our car of the day. We preferred it to the Fabia VRS and the Alfa Guilietta we drove. Also DPFs have a shelf life too and they cost over £600. That puts me off too.

If you live in rural Wales you have the roads get a DPF regenerated anyway. Getting car fully warmed up and stretching it a bit in the gears should be enough. Just beware of bored cops! (I used to live in Lampeter)

Edited 3 February, 201412 yr by Matt Bodycombe

I tested a diesel XF the other day, the left bank of cylinders had a cannister beneath it , the right one didn't and then both pipes went into a DPF, I wonder now that was it missing a cat?  I've seen loads of those from underneath and can't remember what they're usually fitted with.