Crank no start...but then does...

[Ninj43]

So, right on 30g soot level, DPF regenerated as normal.



Interestingly, about 5 miles prior I got an EML with a P226D00 - Particulate Filter Deteriorated.

Hopefully no damage to the DPF due to running for 1000 miles without a regen and the high pressures, but it has cleared and pressures are perfect.

Next step is to bang a new option delete file back on for the AdBlue and EGR and see if anything changes with regard to DPF

 

[DXX]

Next step is to bang a new option delete file back on for the AdBlue and EGR and see if anything changes with regard to DPF

DING DING Round 2.

 

[Ninj43]

DING DING Round 2.

Need to get to the bottom of it and potentially one to watch for anyone in future. I'm in the fortunate position to be able to chuck files at it until we bottom out exactly what was going on

 

[DXX]

Need to get to the bottom of it and potentially one to watch for anyone in future. I'm in the fortunate position to be able to chuck files at it until we bottom out exactly what was going on

Understood, you’re lucky the cost is just time, imagine a VW dealership faffing their way through this.
I’m sure there was another case on the Forum recently with a adblue delete preventing a DPF regeneration.

 

[Ninj43]

Understood, you’re lucky the cost is just time, imagine a VW dealership faffing their way through this.
I’m sure there was another case on the Forum recently with a adblue delete preventing a DPF regeneration.

Interesting - that would be an explanation. I'll have a hunt about and see if I can find any similarities

 

[mmi]

I’m sure there was another case on the Forum recently with a adblue delete preventing a DPF regeneration.

I'll have a hunt about and see if I can find any similarities

Perhaps these?

Post in thread 'Looking for advice please... RE: Turbo hose popped, blocked DPF... what came first?'

27 Oct 2025

Yes ECU has been remapped, EGR and AdBlue deleted.

That's interesting How many miles since the remap?
Now defnitely need to see engine's blockmap data - to see what ECU thinks about soot and ash accumulation in the DPF as well as DPF regen statistics.

• mmi

• 

Thread 'DPF Monitor Odd Reading'

25 Jul 2025

H folks, hoping someone can advise what’s going on with the VAG DPF monitor readings I got.

Gen six Caravelle, BiTDI 204 ps, just turned 30k miles, drives smoothly, not used any oil yet and only seen/heard it regen once

DPF monitor showing 0g calculated soot mass, -40 input/output gas temp, and differential pressure ranging from 17 to 210hpa. Only thing it really does give me is time and miles since last regen, and ~19g oil ash residue

Following screenshots taken randomly driving on dual carriageway at 70mph and ~3000revs, last one at idle when stopped.



...

• JamieM
• Replies: 36
• Forum: Engine, Gearbox, Exhaust, Drivetrain