DPF...Can I
 

remove it from the ECU using Vagcom?


Reason being I have been reading about low ash oil required for cars fitted with DPF, I've also been reading that low ash 0W-30 oils can cause premature cam wear. Personally I am not keen on 0W-30 oils as I feel they are just too thin and don't provide enough protection, so I would like to start using 5W-40 505.01 spec oil instead. So now I would like to code out the DPF and remove the filter.

Think you need an ECU re-code for that....

Reflash needed for removal. You need to do both at the same time physical removal and software. A8 Doc and mkoneman should be able to do software side. Probably best to do together with remap.

There is nothing wrong with 0W-30 oil for everyday use. Cam wear was a problem with V6 2.5TDI engines. This was combination of design, higher then now sulphur content in diesel, incorrect oil usage and long service intervals. Using long life service and doing little miles in short distances causes oil dilution with diesel over time. If you change it yearly there should be no problems. And 3.0TDI(as does later 2.5) uses roller rocker arms so no cam wear issue. 0W-30 PD oils have high pressure additives which ensure there is no metal to metal contact and reduced wear on components.

Thanks for the replies, I'll need to investigate further.


Just out of curiosity has anyone used 505.01 spec oil in a DPF engine?

I think Ainer and Nollywood should open up an Audi specialist, I would use them. They know their sheeeet. +++

I believe 507.01 spec oil is required for a DPF equipped engine regardless of service intervals.

DPF removal requires complete removal of the DPF in the exhaust first. Then the ecu needs reflashing to remove the regeneration tables as well as various fault codes.

Happy to help though :)

I'm confused.

I thought that the removal of DPFs, or any other original emissions equipment, would result in a MOT failure from this year onwards, so how does this work?

Only applies to Petrol engines, diesel will still only need to pass a smoke test and only if it fails will the cause be investigated. Even with the new lower smoke limits for newer cars, it should pass the smoke test without a DPF.

Judging from the amount of soot routinely being blown out by diesel powered motors, the smoke test limit must be pretty relaxed. :p There seems to more black smoke from some cars than a marine Deltic running in the "oil throwever" range. Fortunately (or unfortunately??) there doesnt seem to be a similar propensity for exhaust funnel fires. ;) .