2005 Audi A4 avant 2.0 tdi does it have a dpf

[markspark71]

Hi as above does the 2005 Audi avant have a DPF if so can it be removed what are the pros and cons of it ?

[Dr G]

At that age if it does the model on the V5 will have 'TDV' in it.

If in doubt send me the reg and I'll look it up for you.

[Adrian E]

If it has it, don't remove it. If it's playing up get it cleaned out properly and make sure it's getting a chance to regenerate properly.

Lots of places will offer to remove it and remap the ECU to sort, but this is fraught with risk as many make a complete mess of it. If they remove EGR as well you'll likely trash the turbo through crud getting back into the turbo that would've been recycled by long EGR, if fitted. Otherwise there's the risk of your turbo over speeding due to less back pressure.

At the moment the MoT test involves a visual inspection for the presence of a DPF, which most cars with a removed DPF will pass as the smoke test can't establish the extent of particulate matter in the tailpipe emissions, and removers will gut the box and leave it in place. Don't expect the test to stay that way forever.....

At an environmental level removing a DPF isn't great as all the soot and particulate matter which the DPF usually deals with escapes to atmosphere, and it's the nasty small stuff that gets deep into the lungs and does permanent (life shortening) harm