DPF adaption after replacement , different look in VCDS versions

[Apendiixator]

OK. If the current status is 132634 km when you have a fault, you still have to read the block of measured values. You have already done it once. So do it again. Because your scan is the error memory of module 01 with the surrounding conditions for the fault. That is too little information.

You need

IDE00021
IDE00427
IDE00433
IDE00434
IDE00435

and

all the temperature sensors in the exhaust

This is important information:

It is impossible to have 0 ml ash with that mileage. Someone reset something.

Why?

IDE00433 Particle filter: oil ash volume 0.00 l

I think IDE00433 and this information of yours are related.

Have read that I have to do an initialization , and it was also ment in the dokumention from filter cleaner.

This means that you have already done the initialization. Remember the steps you have already done in VCDS. Didn't VCDS ask you how much mileage the DPF has?

 

[Bengt_Salmose]

As far I remember so was the numbers in ID0275 zero first time I opened the routine . And I didn´t changed anything or pressed "doit" as I can remember but I am not an youngster anymore so I can have forgotten.
If everyting is good exept ash volume is set to 0 I asume it is to find out why DPF is blocked . Have done it twise while towing trailer. Have "muffler" symbol coming on in 110km/h after half an hour driving ( car goes in gear 8 but revs is something betwen 1200-1500 ) . I think it starts regeneration to early after start since "muffler symbol" have came on several times 3-5 km after cold start.
Have found on web that it has been DPF problems with a ECU software version but dont know witch version .
If its not a software issue it can bee hardware like injektors . Have checked deviation data on them , very good ,less than ±0,2.

 

[Apendiixator]

Good morning to Sweden. I can't judge your knowledge of the DPF system. In general, this system is influenced by many factors. It's not always easy to assess where the cause of the problem is. When repairing, it's not very valuable to remember what was or wasn't. It's essential to have it in the form of exact data. VCDS is a great helper for this, but the most important thing is your operation.

If I were to repair your car in my workshop, I would specifically assess that the DPF on the 3.0 tdi engine is clogged at 130 thousand km. That's very early. Furthermore, if I decide on a clogged DPF, I have to be sure that it is really clogged. What exactly is the reason for the filter being clogged? Soot or ash? The values that you call up in VCDS with the UDS button would be useful for this. The values that you see in post #18. That could explain a lot.

I would pay more attention to this.

Eolys/ Seriumrests average ( 2/4)

Your Audi is from 2018. Does it really use the Eolys system for soot reduction?

I think you can get help on this forum, but you need to provide real information and real information from VCDS.

 

[Apendiixator]

As far I remember so was the numbers in ID0275 zero first time I opened the routine

So that means even before dismantling the original DPF at the very beginning of your repairs?

 

[Bengt_Salmose]

So that means even before dismantling the original DPF at the very beginning of your repairs?

Found this : From de day after the first failure in aug 2024 . It was done before dismount /cleaning DPF.
Before this time I just had pulled error codes and perhaps tried a forced regeneration , not started because safety reasons.

  IDE00427   Particle filter: difference pressure 12 hPa
  IDE00428   DPF: offset for differential pressure -2 hPa
  IDE00433   Particle filter: oil ash volume 0.00 l
  IDE00434   Particle filter: soot mass calculated 26.12 g
  IDE00435   Particle filter: soot mass measured 2.25 g

Called the workshop that cleaned both times. Eolys/Cerium rest is an "by the eye " diagnos from the colour of what is coming out during cleaning . Brown colour=Eolys/Cerium .

 

[Apendiixator]

IDE00433 Filtr pevných částic: objem olejového popela 0,00 l

OK so we know for sure that the 8\2024 unit does not see any ash. I assume that the mileage was about 10 - 15 thousand km less. How long have you known \ used this car? I mean the history of this car in general and specifically any manipulation with the software.

IDE00434 Particle filter: soot mass calculated 26.12 g
IDE00435 Particle filter: soot mass measured 2.25 g

Is there anything installed in the Audi? I mean something that is connected to the Gateway. For example, a non-original towbar or GPS locator, etc.

And I also suggest finding out the current status of the values IDE00021
IDE00427
IDE00433
IDE00434
IDE00435 plus the exhaust temperature sensors.

Called the workshop that cleaned both times. Eolys/Cerium rest is an "by the eye " diagnos from the colour of what is coming out during cleaning . Brown colour=Eolys/Cerium .

Your Audi should have engine code CVUA (is that right?). There is a high probability that CVUA does not have a system for increasing the temperature on the DPF by Eolys. Something tells me that this system was used until 2010. So no brown liquid. I would clarify this with the service if I were you. Many services do not understand the difference between Eloys and AdBlue. This can cause a lot of serious damage.

The way liquid Eolys is checked is certainly a little different. I assume the service is from the official authorized Audi network? Just by the way.

 

[SaVAGeSoot]

Found this : From de day after the first failure in aug 2024 . It was done before dismount /cleaning DPF.
Before this time I just had pulled error codes and perhaps tried a forced regeneration , not started because safety reasons.

  IDE00427   Particle filter: difference pressure 12 hPa
  IDE00428   DPF: offset for differential pressure -2 hPa
  IDE00433   Particle filter: oil ash volume 0.00 l
  IDE00434   Particle filter: soot mass calculated 26.12 g
  IDE00435   Particle filter: soot mass measured 2.25 g

You need to lookup the specs on your engine\platform configuration.
For example, my Touareg starts regeneration when one of those values gets to 27g
A Jetta or Passat with a 2L TDI in NaR would start regeneration at 18.9g

Also note that your ash volume was already at zero, so whoever\whatever zeroed it out, happened prior to you having the DPF cleaned, etc.
This value would only be zero when the vehicle is new, or after it's reset (adapted), or if a tuner is involved and it's been turned off. After 5 or 10 thousand kilometers of use, there's no way it would still be zero otherwise.

 

[Bengt_Salmose]

I bought this car in februari 2024 122000km . Always serviced on Audi . Was serviced same day I bought it and then AdBlue also was filled up.
Previsus owner was an Car repair teacher , second owner . ( Used Autel ) but I don think he has messed with the car . Same MMI software and maps as it was delivered with.
Only thing I knew he had done was 4 new brake calipers. The car was nearly as new .
I have driven about 10000km .
Today I tried to fill up AdBlue . I asumed I could put in at least 10 l but it could only take 2,5 l . There is a problem with AdBlu !

 

[Apendiixator]

Values that could explain something are in posts #21 and #26. If you don't provide facts, you can't say anything for sure. I have a feeling that your ECU has experienced some "story". And that's why it's not working correctly.

Is such a story possible?: Audi went to a service where they were able to change only some operating fluids. Most likely only the oil because the brake fluid hasn't been changed for many years. (That's why the hydraulic pistons in the brakes got stuck, which led to the brakes losing power and had to be replaced). One of the previous owners wanted to "improve" the ECU for more performance or there was a problem with AdBlue. For some reason (maybe due to the inability to find the real cause), the ECU software was manipulated. And that's why the need for DPF regeneration is now symbolized. (IDE00434 Particle filter: soot mass calculated 26.12 g). But regeneration apparently won't start.

If you have the opportunity to talk to the previous owners. Perhaps especially with the following:

Previsus owner was an Car repair teacher , second owner .

That way you can learn more about your car's history. And consider the erudition of your service if they tell you that Eolys is checked "by eye". There must be no such fluid in your car! The DPF is regenerated in a different way. Be sure to check the part number that you have on your bill from the repair. Something like G 052143xx is unacceptable.

 

[Bengt_Salmose]

Values that could explain something are in posts #21 and #26. If you don't provide facts, you can't say anything for sure. I have a feeling that your ECU has experienced some "story". And that's why it's not working correctly.

Is such a story possible?: Audi went to a service where they were able to change only some operating fluids. Most likely only the oil because the brake fluid hasn't been changed for many years. (That's why the hydraulic pistons in the brakes got stuck, which led to the brakes losing power and had to be replaced). One of the previous owners wanted to "improve" the ECU for more performance or there was a problem with AdBlue. For some reason (maybe due to the inability to find the real cause), the ECU software was manipulated. And that's why the need for DPF regeneration is now symbolized. (IDE00434 Particle filter: soot mass calculated 26.12 g). But regeneration apparently won't start.

If you have the opportunity to talk to the previous owners. Perhaps especially with the following:

That way you can learn more about your car's history. And consider the erudition of your service if they tell you that Eolys is checked "by eye". There must be no such fluid in your car! The DPF is regenerated in a different way. Be sure to check the part number that you have on your bill from the repair. Something like G 052143xx is unacceptable.

Forgot , Yes it is a CVUA engine.
I have got all service protocols . All done by the book by authorized Audi service partner. Nothing about G052143

Saturday,03,May,2025,17:13:23:38398
VCDS -- Windows Based VAG/VAS Emulator Running on Windows 10 x64
VCDS Version: 24.7.0.0 (x64)
Data version: 20240715 DS356.3
www.Ross-Tech.com


VIN: WAUZZZ4G7JN070847 License Plate:
Mileage: 132698km-82454mi Repair Order:


Address 01: Engine (4G0 907 589 F)

17:13:20
IDE00021 Engine RPM 0 /min
IDE00025 Coolant temperature 13 °C
IDE00167 Exhaust temperature 1 bank 1 15.0 °C
IDE00169 Exhaust temperature 2 bank 1 18.3 °C
IDE00427 Particle filter: difference pressure -1 hPa
IDE00433 Particle filter: oil ash volume 0.00 l
IDE00434 Particle filter: soot mass calculated 4.86 g
IDE00435 Particle filter: soot mass measured 1.29 g
IDE02229 Exhaust gas temperature sensor 1 17.8 °C
IDE02233 Exhaust gas temperature sensor 2 18.3 °C
IDE02234 Exhaust gas temperature sensor 3 17.3 °C
IDE02236 Exhaust gas temperature sensor 4 18.3 °C

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Address 01: Engine (4G0 907 589 F)

17:20:42
IDE00021 Engine RPM 969 /min
IDE00025 Coolant temperature 14 °C
IDE00167 Exhaust temperature 1 bank 1 15.3 °C
IDE00169 Exhaust temperature 2 bank 1 18.3 °C
IDE00427 Particle filter: difference pressure 3 hPa
IDE00433 Particle filter: oil ash volume 0.00 l
IDE00434 Particle filter: soot mass calculated 4.86 g
IDE00435 Particle filter: soot mass measured 1.29 g
IDE02229 Exhaust gas temperature sensor 1 84.8 °C
IDE02233 Exhaust gas temperature sensor 2 35.9 °C
IDE02234 Exhaust gas temperature sensor 3 20.1 °C
IDE02236 Exhaust gas temperature sensor 4 18.7 °C

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------




Address 01: Engine (4G0 907 589 F)

17:23:21
IDE00021 Engine RPM 821 /min
IDE00025 Coolant temperature 34 °C
IDE00167 Exhaust temperature 1 bank 1 38.0 °C
IDE00169 Exhaust temperature 2 bank 1 58.0 °C
IDE00427 Particle filter: difference pressure 3 hPa
IDE00433 Particle filter: oil ash volume 0.00 l
IDE00434 Particle filter: soot mass calculated 4.89 g
IDE00435 Particle filter: soot mass measured 1.42 g
IDE02229 Exhaust gas temperature sensor 1 174.1 °C
IDE02233 Exhaust gas temperature sensor 2 98.2 °C
IDE02234 Exhaust gas temperature sensor 3 78.7 °C
IDE02236 Exhaust gas temperature sensor 4 58.5 °C

--------------------------------------------------------------------------------
--------------------------------------------------------------------------------


Address 01: Engine (4G0 907 589 F)

17:24:48
IDE00021 Engine RPM 1811 /min
IDE00025 Coolant temperature 41 °C
IDE00167 Exhaust temperature 1 bank 1 61.9 °C
IDE00169 Exhaust temperature 2 bank 1 60.6 °C
IDE00427 Particle filter: difference pressure 12 hPa
IDE00433 Particle filter: oil ash volume 0.00 l
IDE00434 Particle filter: soot mass calculated 4.90 g
IDE00435 Particle filter: soot mass measured 1.43 g
IDE02229 Exhaust gas temperature sensor 1 198.6 °C
IDE02233 Exhaust gas temperature sensor 2 119.1 °C
IDE02234 Exhaust gas temperature sensor 3 129.7 °C
IDE02236 Exhaust gas temperature sensor 4 60.6 °C

 

[Bengt_Salmose]

Pulled the AdBlue injector . Very little deposit on injectrors conical surfaces . Less than 1 mm thick , black , very easy to peel away .
The hole in downpipe had thin black deposit.
Haven´looked after , but there must be a way to run AdBlu injection constantly to see if the system feeds Adblue trought injector.

 

[Apendiixator]

You have selected all the IDE values correctly. But you only heated the engine to 41°C. That is not enough. You need to reach full operating temperature by driving. And write down what the status of the indicator light is. That is, if an error memory is written during the measurement.

The hole in downpipe had thin black deposit.

There could be crystals on the injector, but they definitely shouldn't be black. Can you send a photo?

Also, how dirty is the exhaust tip? Is there a lot of black soot there that you can touch with your finger?

 

[NEtech]

Haven´looked after , but there must be a way to run AdBlu injection constantly to see if the system feeds Adblue trought injector.

eg. look here https://forums.ross-tech.com/index.php?threads/43826/post-358239

 

[Bengt_Salmose]

I actualy warmed up engine more but my laptop died.
In my house it runs two hours on batteri . In car with VCDS adaptor 5 minutes


Learning howto insert pictures .
Will take picture on injector tomorow

 

[Bengt_Salmose]

Have run the N474-Reducing Agent Injector test.
Looks okay , got 27 ml , ( 25-30 is normal) , but used nearly 13kg adblue since last service but I only managed to fill 2,5 liter . Have to check if worshop filled it up when they changed the harmonic balancer 5500 km ago but if it is so I should be able to fill 5 liter.

  IDE00021   Engine RPM 0 /min
  IDE03129   Reducing agent pump: activation 50.00 %
  IDE03131   Reducing agent injector: activation 0.00 %
  IDE03132   Pressure sensor for reducing agent: measured pressure 5010 hPa
  IDE03139   Reducing agent injector: resistance 10750 mOhm
  IDE03144   Used reducing agent since last service 127493.869 g
  IDE03242   Injector for reduction agent: current holding phase 374 mA
  IDE03386   Long-term adaptation of reduction agent dosage 1.00
  IDE04099   Reduction agent dosing ReAg Rate/Demand:0.0/0.00 L/h / Reag Tnk Lvl:79.6 %
  IDE05520   Pump for reducing agent: speed 1452.0 /min

Sealing surfaces between injector and downpipe are not good . Could adblue leaking out ?

 

[Apendiixator]

Photos of the urea injection valve show something unusual. There should be traces of snow white crystals at the outlet of the valve. There may be a smaller or larger amount but the color is definitely white. Something like this

If I were you, I would check the AdBlue tank. The liquid should be transparent like water. Another question is the patency and condition of the SCR tank. Because what you saw on the valve will also be in the pipe to the SCR...
But all these are consequences. And the cause?

 

[Bengt_Salmose]

Tomorrow I will buy a refractometer to se percent of water.

Perhaps some one have filled i up with water .

 

[Bengt_Salmose]

It was not water but clear as . Adblue 34%
Talked to an VAG technican today . These engines use very little AdBlue . 2,5 l / 10000km is normal.

 

[Apendiixator]

If the fluid is clear and VCDS does not report a fault with the SCR, I would focus on the DPF. But take into account that you are seeing this situation now. 70 thousand km ago it could have been completely different and someone could have filled the AdBlue tank with anything. Even diesel...

For 1 The all values you show before and after dismantling are inconsistent with the amount of soot that can be seen in the picture.
For 2. The filter shows and showed 0 g of ash, the calculated soot value fluctuates, but even if it exceeds 26g, regeneration will not be performed (or will it be performed?). I suggest focusing on the exhaust temperatures as you have already measured, but with a warm engine. There must be a clear downward trend in temperatures on the sensors. And most importantly, the temperatures must be realistic. Do not hesitate to use a digital thermometer and measure the temperature on the surface of the exhaust pipe and the SCR tank.

 

[SaVAGeSoot]

I still don't understand what issue it is you are attempting to solve here....
According to your scan data, regens are taking place

DPF status : after a 20 min ride at 80km/h

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Address 01: Engine (4G0 907 589 F)

12:08:48
IDE00427 Particle filter: difference pressure 10 hPa
IDE00432 Particle filter: time since last regeneration 617 s
IDE00433 Particle filter: oil ash volume 0.00 l
IDE00434 Particle filter: soot mass calculated 4.86 g
IDE00435 Particle filter: soot mass measured 1.29 g
IDE00436 Particle filter: kilometers since last regeneration 9910 m