Regeneration nach km

Octavia 3 RS DSG, 2016, CUNA, EU6

Can anyone tell me when the regeneration starts in my engine after a certain distance?
(So, wenn diese nicht durch berechnete oder gemessene Rußmenge ausgelöst werden.)

I am asking because I received a new engine including a DPF, but the recorded ash mass corresponds to the mileage of the chassis.

The regeneration is controlled by the ash mass. Depending on which reaches the limit first, either the measured or the calculated soot mass triggers the regeneration.
What is the amount of ash recorded, and how many kilometers have been driven?
hg
Herbert

However, if the soot mass does not reach a certain distance of x kilometers, it will still be generated at some point. When is it?

Or is my information really wrong?

Would like to determine if it would be beneficial to adjust the set ash value.

TTaurus wrote:

Would like to determine if it would be appropriate to adjust the set ash value.

Hello,

If the engine and DPF are new, it should also be reset, as the control unit also works with the ash level value.
This, of course, increases with every regeneration. Therefore, the control unit reduces the regeneration interval depending on the higher ash load value. This means that this cycle occurs at increasingly shorter intervals.
Ultimately, by resetting, you will gain a significant amount of regeneration/lifespan for the DPF. The potential increase in ash value is significantly reduced.

Greetings, Mpire

I was actually expecting it to be exactly the opposite.

Since I mostly drive on highways, I might only have regeneration at the kilometer limit. The measured soot value is always in a negative range. Therefore, the regeneration process is carried out a little more frequently than is appropriate for the actual ash mass.
What could be beneficial for the DPF, actually?

I don't have any problems with oil dilution, but I do have a slightly higher than normal oil consumption.

There is no kilometer limit, but the discussion seems pointless here.
Without the recorded ash values, it's impossible to assess anything.
hg
Herbert

Octavia 3 RS DSG, 2016, CUNA EU6 (with SCR storage)
142Tkm 0.13l

IDE00432 Particulate Filter: Time since last regeneration 4785 s
IDE00433 Particle Filter: Oil Capacity 0.13 l
IDE00434 Particulate Filter: Soot Mass Calculated 8.33 g
IDE00435 Particulate Filter: Soot Mass Measured -0.13 g
IDE00436 Particulate Filter: Mileage since last regeneration 100494 km
IDE00556 Outdoor Temperature 4 °C

New engine installed at 89,000 miles.

@Herbert: Why is it pointless? Do you need to wait until the control unit is changed?

Actually, I don't want to interfere, but if there's a problem, shouldn't Skoda be responsible?

Ugh!
With approximately 45,000 km (so it's not really brand new anymore), the oil consumption volume should be around 0.04 l under normal conditions.
The 0.13 l Ölasche volume corresponds quite well to 143 Tkm.
At 0.175 liters, the 4-cylinder DPF is at its end.
It is now, of course, impossible to say definitively whether the reset was forgotten during the exchange, or whether there was an abnormal increase in the oil ash.
hg
Herbert

However, if the soot mass does not reach a certain distance of x kilometers, it will still be generated at some point. When is it?

Before 23R6, it was approximately 1,000 km. Now, it is approximately 750 km. When the limit is reached, the soot loading is imaginarily set to 100%, which then triggers the regeneration.

This, of course, increases with every regeneration, so the control unit will increase the ash loading value
Is this correct? Does the ash value not increase primarily due to the sole operation of the engine, since the ash is mainly derived from the engine oil or its combustion?

Quote:

About 23R6, the distance was approximately 1,000 km, but now it's approximately 750 km. When the limit is reached, the soot loading is imaginarily set to 100%, which then triggers the regeneration.

Please provide the text you want me to translate.
hg
Herbert

Quote:

Is this correct? Does the ash value not increase primarily due to the sole operation of the engine, since the ash is mainly derived from the engine oil or its combustion?

My understanding:
The engine operation causes soot, which accumulates in the DPF. During regeneration, this is pyrolyzed into ash, which then remains in the DPF.

My car started regenerating after approximately 610 km and 20.24g, reducing to 4.3g within 19 minutes.

@TTaurus
The carbon essentially burns without leaving any ash. He is, after all, oxidizable.
Non-oxidizable, for example, are particularly the additives in engine oil.

@Herbert
What would you like as proof?
For example, I have 3 screenshots.
1: At 979 km, the soot mass was still at 12.4 g (a long highway stretch of approximately 140 km with a lot of passive regeneration due to the exhaust gas temperature of approximately 450 °C)
2: At 995 km, the car is recovering after the soot mass had previously reached 24 g.
3: At 1012 km, he is almost finished

With 23R6, this happens approximately at around 750 km. It's not particularly complicated to understand.

These are your personal observations, they are incomplete (what is calculated and what is measured soot mass), the connection to the mileage comes from the driving profile, and the relationship to the S/W update is speculative.
And

Quote:

Coal essentially burns without ash. It is, after all, oxidizable.

see. Charcoal Grill.

hg
Herbert

@Herbert
That's not speculation! These are facts! This reveals gaps in knowledge that should be treated with caution.

I would like to point out that my statements refer to the calculated amount of soot. I have also never observed a case where regeneration was triggered by the measured soot mass.
Of course, the distances between rainfall events are heavily dependent on the driving pattern. Regardless of the driving profile, however, there are the limits I have explained, which have changed due to the 23R6 update (in addition to many other changes in the area of DPF regeneration).
So is at least the status for the EA 189 in the sizes 1.6 and 2.0.


To Your Note Regarding the Charcoal Grill:
In charcoal, there are also various other substances that are not oxidizable.
The primary source of ash in an internal combustion engine is, of course, engine oil, which is why low-ash oils are essential for applications with DPFs.

To prevent it from escalating, I suggest:

Here's a snapshot of the condition of your DPF, according to the attached image. This is from my EA189 2l TDI.

As a second step, please record these data with your engine, initially, and after regeneration. Use "Session Log" etc. VCDS will combine the data into a text file.
Then you can see.
hg
Herbert

The measuring channels shown in the appendix are familiar to me. ...

The 'snapshot of the DPF condition' that I mentioned, I actually took – see descriptions 1, 2, and 3 from my post on January 18th at 22:15 (I didn't get this information from thin air or speculate about it).

10.3g ash at 37285km