BogdanB

Is this what you are refering to? That was my impression too. At idle it shows around 36 hPa. As soon as I start accelerating it ranges from 100 to 350-400 hPa. And it always tries to do an active regen. And the fact that while driving, during an active regen the soot mass measured wouldn't drop(soot mass calculated correctly goes to around 1g), that made me think it's a faulty sensor. But I can't guess which one.

I've added a screenshot showing the soot calculated trend, and soot measured. One going down, one going up. Quite funny. The service regen for this model is stationary or while driving? From what I've read in ross tech, for cars with UDS protocol only stationary is possible.

But the fact that it's not dropping while driving, even while regenerating? And then, when i stop the car ( idle ) it completes the regen in less than 5 min. I don't think that's actually happening.

So I've got some updates. Today I took the car for a longer run. Shortly after I started, of course the soot mass measured spiked to 24g and triggered an active regen. While driving, the soot mass calculated dropped to about 1g. The soot mass measured didn't drop A SINGLE GRAM while driving, even though the EGT was around 610 deg C. As soon as I stopped, in about of 4-5 min, the soot mass measured went from 24g to nearly 5g. This makes me think it's a faulty sensor, even though it didn't threw any errors. Also, the soot mass measured never goes up by even a milligram while idling, in contrast to soot mass calculated. If the engine would be running for, let's say 30min, there would be no change in soot mass measured. Any thoughts on this? I'll keep this post updated.

So I've watched soot mass measured. It went from 16g to 24g in less than 2km. So I think this might be the problem. Any ideea what actually 'measures' the soot mass measured?

How much did the dpf delete cost? Does it affect emissions hardly? Does the car smoke hard? (Sorry for the many questions, but I'm thinking of alternatives)

What was that cost of that operation ? I'm suspecting the valve seal rings to be the culprit too ... ( I'm also from Romania )

Any news on the issue?

Hey, did you solve your issue? I kind of have the same behavior in my vrs tdi.

Thanks for the suggestions. I have a few questions though. How do I set vag dpf for group 0? How do I see the injector state on uds protocol? ( I'm used to groups readings in vcds ). How can I check if the lambda is faulty? There are no errors. Thanks

I was thinking about replacing it when it reaches ariund the 80% ash mark. Removal is out of the question for me. Also, I think I might have found the culprit after hooking VCDS in. It's very likely that the measured value doesn't drop enough and it quickly rises to the 20ish grams and that triggers the regen. What I'm seeing in the VAG Dpf app is only the calculated value. I'll try doing a forced regen on the highway and it'll probably sort itself out.

Short trips around the city during the week, and a highway run in the weekend ( ~150km ). The thing that concerns me is that even after the highway run, the behavior is the same. Is chemical cleaning any good? I've been considering that. Also, I'm not driving it like a granny. Whenever the road permits it, I use the sport mode.

Hello everyone. I think there might be a problem with my DPF system. It starts a regen almost every time I turn on the car. (I'm noticing that by increased revs, starts stop off due to "engine must be running"). My questions is, has the dpf reached it's end of life? Or is there a faulty differential pressure sensor or anything else? I've attached a screenshot from VAG DPF. I think that the differential pressure is way too high. (Car was idling)

Hello The license states that the PDFs are only available for the purchased subscription time. Is this true? Do they really have to be physically printed to have persisted access to them?