DPF regeneration with VCDS
Автокөліктер мен көлік құралдары
This is how to perform diesel particulate filter regeneration,
both while driving and with Vag-Com Diagnostic Software (VCDS).
Performed on Audi A4 B8.
DPF Regeneration can be done in 3 ways:
1) Passive regeneration while driving. This occurs primarily at higher engine loads, when the exhaust gas temperatures are high enough to burn off soot (350-500 degrees C). 60km/t, 2000rpm, at least 20 minutes.
2) Active regeneration while driving.
As soon as a specific soot load in the filter has been measured (above 18g), the ECU initiates a post-injection of additional fuel into the combusion chamber, to help raise the temperatures and burn off soot in the filter.
1. happens without intervention of the ECU.
2. is normally done when the 1st process is incomplete or aborted (usually when frequently driving short trips, not long enough for the DPF to reach optimal temperature and burn clean). You can sometimes hear the active regeneration, because the exhaust sound changes to a more 'deep droning'. The RPM at idle also increses by 150 (i.e. from 800 to 950 RPM).
3) Forced service regeneration when stationary.
This can only be done with software, like VCDS.
I only do the 3rd option if the soot mass measured gets above 24g, and Im not able to do a long trip. It's not recommended to do a forced regen unless necessary, because the extra fuel beeing injected can dilute the engine oil, therefore an oilchange is desireable after forced regen.
40g soot is the upper/critical level for forced regeneration. If the soot mass exeeds 45g, regeneration is no longer possible and the DPF must be replaced.
Пікірлер: 32
Thanks for the video and all the comments; very helpful.
Hallo ;) Cooles Video! Danke. 😊 zufällig schon mal dieses erfrischende basische Aktivwasser aus einem Hydrogen Rich Water Generator schon mal kennenlernen können? Dieses Getränk ist einfach fresh! 🌱 Wieso? Also das muss jeder selbst herausfinden. und Nur soviel: Es verbessert das Blutmilieu - hast du dich damit schonmal beschäftigt? .. ❤
How do you know when it’s finished ?
Hi, i have a 2007 a4 b7 and sometimes the glow plugs blinks. I recently bought the car so i dont know if it means that is doing a dpf regen. No other warning light turns on. Should i worry? Also the pedal is not that responsive. Thanks, please respond.
@TordAndreassen
5 жыл бұрын
Its most likely emissions related, like a bad sensor or a faulty EGR. You should scan for codes. Get VCDS or buy a cheap OBD2 scanner if you dont have one.
@simonmller9612
7 ай бұрын
@@TordAndreassen what sensor could cause this issue ?
Hi, according to VCDS my calculated soot is 16grams and measured 3 grams. Which one is more accurate, measured or calculated? Because it also gives the fault code dpf clogged.
@TordAndreassen
3 жыл бұрын
The calculated value is set by the ECU, its just a prediction. Measured value is based on difference in air pressure before and after the DPF.
@IvanToman
Жыл бұрын
@@TordAndreassen How can these two be so much different? Possible sensor fault or?
@TordAndreassen
Жыл бұрын
@@IvanToman I guess the algorithm for prediction isn't perfect 😉
Can you force a re gen to re start if you have stopped halfway through a previous regen
@TordAndreassen
2 жыл бұрын
No, you have to do the same procedure over again.
Hi could you please explain me what you ment by enabling adaptation
@TordAndreassen
4 жыл бұрын
The access code you hit, in (16 - security access) is either adaptation enabling or Basic setting enabling. Anyway, its not important. Just hit the code you see to get access.
@stajpi
3 жыл бұрын
@@TordAndreassen i tried, it says accepted but still i cant click on basic settings
@MrDzincca
2 жыл бұрын
@@TordAndreassen where in programm its shows code?
hi, you question pls.When driving mode, is it must to be connected to software or just drive above 60-70kmh, on 2000rpm
@TordAndreassen
6 жыл бұрын
DPF Regen can be done in 3 ways: 1) Passive regen while driving. This happens when the exhaust gas temperatures are high enough to burn off soot. 60km/t, 2000rpm, 20 minutes. 2) Active regen while driving. The ecu initiates extra fuel injection, to help raising the temperatures and burn off soot. Both 1 and 2 occurs automatically. 2 Is normally done when the 1st process is incomplete or aborted (usually when frequently driving short trips, not long enough for the dpf to reach optimal temerature and burn clean). You can sometimes hear the active regen, because the exhaust sound changes to a more 'deep droning'. 3) Forced regen when stationary. This can only be done with software, like VCDS. I only do the 3rd option if the soot mass measured gets above 24g, and Im not able to do a long trip. It's not recommended to do a forced regen unless necessary, because the extra fuel beeing injected can dilute the engine oil, therefore an oilchange is desireable after forced regen.
@Dinkelas
6 жыл бұрын
Thank you for answer, it was very helpful...
@zector0
3 жыл бұрын
@@TordAndreassen Thanks!, I actually found this comment easier to understand then the video itself.
What do you mean : "POWER CONSUMER ON" ? please explain in detail . Sorry for poor English. I'm Brazilian.
@TordAndreassen
4 жыл бұрын
Turn on everything that consumes power; AC, lights, seat warmer, rear window defroster, radio/loudspeaker etc.
@patrickkgroseli
4 жыл бұрын
Soot mass = 50g. Is impossible regeneration??
@patrickkgroseli
4 жыл бұрын
Vcds message: timeout-not running / error
@TordAndreassen
4 жыл бұрын
The limit is 45g I believe. Above that the dpf has to be replaced
@nicolaemargineanu4258
3 жыл бұрын
The limit in 90 And you cam make a regen on road with VCDS.
How long does the procedure take when regen with vcds?
@TordAndreassen
4 жыл бұрын
Depends on how much soot there is to burn
@saulgoodman7495
4 жыл бұрын
Tried it today but when i typed "soot" nothing showed up?
@TordAndreassen
4 жыл бұрын
You mean when showing measuring data? Try searching for 'particle' Then you should see both soot mass measured and calculated
@chrispiela1981
3 жыл бұрын
Still, it would be nice to know how much it should be on.
Hola buenas, cuando intento entrar a acceso de seguridad, al meter el código me pone: controller refused to send a sed, service not supported in active session. Sabes como podría solucionar esto? Un saludo y gracias