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[05omegav6]

I've heard it suggested that the 1.9 CDTI lump can have the DPF gutted and the ECU reprogrammed to 'forget' that the DPF was ever fitted... 

Does this apply to the 3.0 CDTI as well, or even to other manufacturers

[Sir Tigger KC]

I think DPF's are MOT'able now Al.  If a DPF has been fitted then it has to work. 

EDIT: https://www.gov.uk/government/news/new-rules-for-mot-to-test-for-diesel-particulate-filter

[05omegav6]

I think DPF's are MOT'able now Al.  If a DPF has been fitted then it has to work. 

Is that a 'it looks fitted' or specifically 'tested'  thinking along the lines of drop exhaust, remove innards from above, weld up and refit...

[Vamps]

I think DPF's are MOT'able now Al.  If a DPF has been fitted then it has to work. 

Is that a 'it looks fitted' or specifically 'tested'  thinking along the lines of drop exhaust, remove innards from above, weld up and refit...

This seems to be something on all modern diesels now, having done some research after my Citroen post, replacement against fuel costs seems to be Ok to me though, remember petrol has the Cat to do the same sort of job and that fails. £500 to replace after about 80000 miles, less if it has regular Italian tune up's..................

[Sir Tigger KC]

How do you take the guts out, with out it being obvious that it's been tampered with? 

I would have thought that any tester would just fail it once they spot a patch welded on? 

[05omegav6]

How do you take the guts out, with out it being obvious that it's been tampered with? 

I would have thought that any tester would just fail it once they spot a patch welded on? 

Master, iirc, suggested a way of doing it surreptitiously 

[05omegav6]

I think DPF's are MOT'able now Al.  If a DPF has been fitted then it has to work. 

Is that a 'it looks fitted' or specifically 'tested'  thinking along the lines of drop exhaust, remove innards from above, weld up and refit...

This seems to be something on all modern diesels now, having done some research after my Citroen post, replacement against fuel costs seems to be Ok to me though, remember petrol has the Cat to do the same sort of job and that fails. £500 to replace after about 80000 miles, less if it has regular Italian tune up's..................

I've only 'needed' to replace the cats on one car, and that was due to debris impact damage, namely hitting an upturned manhole cover at 60

[chrisgixer]

Oe cats are reliable I thought? It's the pattern shite that's, er, shite.

[jimbobmccoy]

I was under the impression removal would show up on an emissions test at an mot.
One of the purposes of the dpf is to reduce co2 emissions no?

[05omegav6]

I was under the impression removal would show up on an emissions test at an mot.
One of the purposes of the dpf is to reduce co2 emissions no?

As I understand it, the diesel emissions test is a simple visual smoke test...

[chrisgixer]

I was under the impression removal would show up on an emissions test at an mot.
One of the purposes of the dpf is to reduce co2 emissions no?

That's the question really. I think Al is looking for reliable short journey use, currently not possible with a Dpf.

Bloody madness it seems to me...

[Nick W]

I was under the impression removal would show up on an emissions test at an mot.
One of the purposes of the dpf is to reduce co2 emissions no?

DPF is Diesel Particulate Filter. It's there to hopefully burn off most of the black soot(particulates!) seen in exhausts from badly setup, low rpm diesels.

Of course, putting a filter in an exhaust couldn't possibly get blocked. Could it?

[Vamps]

I was under the impression removal would show up on an emissions test at an mot.
One of the purposes of the dpf is to reduce co2 emissions no?

That's the question really. I think Al is looking for reliable short journey use, currently not possible with a Dpf.

Bloody madness it seems to me...

Indeed when every other car seems to be a diesel, currently looking around at Petrol cars, but not totally convinced, given fuel savings over petrol.........

[chrisgixer]

I was under the impression removal would show up on an emissions test at an mot.
One of the purposes of the dpf is to reduce co2 emissions no?

That's the question really. I think Al is looking for reliable short journey use, currently not possible with a Dpf.

Bloody madness it seems to me...

Indeed when every other car seems to be a diesel, currently looking around at Petrol cars, but not totally convinced, given fuel savings over petrol.........

Lpg

[05omegav6]

I was under the impression removal would show up on an emissions test at an mot.
One of the purposes of the dpf is to reduce co2 emissions no?

DPF is Diesel Particulate Filter. It's there to hopefully burn off most of the black soot(particulates!) seen in exhausts from badly setup, low rpm diesels.

Of course, putting a filter in an exhaust couldn't possibly get blocked. Could it?

Cynic...