Angel tuning tell me that DPF removal should be a priority - touting for work??

[nathanrobo]

My '08 mini cooper seems to be running very well on bio, but at just under 1k miles on the stuff, it's early days.  The common rail doesn't frighten me as I did 30k miles in an Alfa CR. Keith's ballsy approach has enboldened me to to take the plunge with a dpf

I was thinking about a dpf removal for increase power / mpg (up from 110BHP - 142 with mapping included).  I contacted Angel tuning who were one of the first tuners that i read about a few years ago running an Alfa 2.4 on B100, so they have a bit of credibillity.  Anyway they sent this msg:

 'If you are using Bio you must get the DPF removed as soon as possible as we are getting a lot of issues with the two combined!"

Should I rush out and get it done?  Is there any penalty if it fails before I get it done?

[Tony]

I thought there was a chap running a DPF with bio OK though?

I can see the argument for it's removal, as it may not burn off the soot deposits on the cleaning cycle as it would with diesel, however aren't there some new MOT rules coming into place to combat modification in this way?

[1958steveflying]

Yes new rules coming in for DPF as there are already with CAT's however If the internals are removed then the tester cannot tell it is removed or not there. No reason for a fail, so unless they really tighten the smoke test limits it will never be an issue, most go for a replacement pipe and keep the DPF for when the test is due or anytime it should be needed.

[1958steveflying]

You are also less likely to have problems with a DPF on Bio if you drive on the hard side, the DPF will only enter it's regen cycle if it starts to show high pressures on the engine side ie: it's blocking.

[K.H]

I thought there was a chap running a DPF with bio OK though?

I can see the argument for it's removal, as it may not burn off the soot deposits on the cleaning cycle as it would with diesel, however aren't there some new MOT rules coming into place to combat modification in this way?

Chap? bleedin chap? i take it its me your calling that!

[Julian]

I thought there was a chap running a DPF with bio OK though?

I can see the argument for it's removal, as it may not burn off the soot deposits on the cleaning cycle as it would with diesel, however aren't there some new MOT rules coming into place to combat modification in this way?

Chap? bleedin chap? i take it its me your calling that!

Don't complain, I recon you got off lightly!

[greasemonkey]

Does the cooper have another fluid, like Citroens eolys fluid?

I've yet to find a definative answer about this, but from reading loads about it, I have reached the tentative conclusion, that DPF that regenerate using and additive like eolys, have less problems overall, and are more bio friendly, than ones that generate without.

Even running Dino, DPF are problematic, although it seems that they mostly  fail due to an existing problem elewhere, or from the vehicle being driven round like grandma going to church on a sunday morning.

But basically, having no first hand experience of them, I really don't know.

What happens if it won't work on Bio? As far as I know it doesn't do any damage to the engine. The worst it can do is block the exhaust, and you'll know if that starts happening. So may as well leave it in there, and get it removed if or when you have to.

[K.H]

I think the only thing that would happen is the car going into limp mode

[greasemonkey]

Yeah, that would be about it. A simple diagnostic check should show up any problem cause by the failed DPF fairly easily, I would have thought. I know there are horror storys of the crank case filling with diesel, but I've got to wonder if the car didn't show some symptoms, which were just ignored. And I cannot work out how the crank case fills with diesel anyway, it just doesn't make sense.