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VCDS forced regeneration help/advice ??

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@J.R

ahem, it's a digging implement nowadays... probably!

Something I forgot to mention. If you have been doing other tests and deleting codes, even if you use the login the ECU will "abort due to safety reasons" whatever the **** they are! Also when you go into service regen it may tell you to press and hold the brake and accelerator and then do nothing. Exit engine, turn off and restart then re-enter 01, enter the login (S12345 is now a common one) then go into basic settings, select the service regen and it should say press and hold the brake and CLUTCH, then release and press and hold then release the accelerator, what I call the pedal dance. The engine will lift to a fast idle. Then use click on measuring blocks in the basic settings screen and use the search for ash, select the options, then search soot and select the options, and then temperate where you will get EGT 1, 2, 3, 4 (many don't have an EGT 2) or you may get a full bank display in one value. At this point you can get out and watch, after approx ten mins the engine note changes, the fans will kick up and the EGT's start to climb where EGT 3 can peak at 750 centigrade, then you will start to see the soot figures drop. When the process starts, there can be a lot of acrid smoke so make sure you aren't going to offend anyone. When the soot gets down to approx 3% the engine note will change and the EGT's start to drop, let it cool down and you are done. 

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IMG_4789.thumb.jpeg.a6712228b188d6129640e24b82d4b102.jpegIMG_4790.thumb.jpeg.d84c6ad92621d3da0701a166825a796a.jpegIMG_4791.thumb.jpeg.12594a078979d39cdf9ef610286eb952.jpeg

sorry for late replies on the photos,, worked late and was pooped 🤣,, so done them this morning and yes they give a kettle more info when you click on them,,, hopefully you bright sparks will be able to shed a bit more light on the extra info ??? 
thanks peeps 

I interpret that as your exhaust has used half of it's life in terms of oil ash stored.  So that's good, and you can also see the soot thresholds of when the lamp will illuminate etc.

So really I would say your car is performing ok, as it ages the regens will become more frequent, but you don't seem to have got to the stage of car going into limp mode.

 

Just drive, and monitor values from time to time.

I have compromised vision and a crap computer monitor but the figure looks like 3.3g and not 33g.

 

Or is that just another example of the VCDS ****witted use of values?

 

Editted, I see you were referring to the first image.

 

Thanks for the tip about hovering over the value, that is really good info 👍

Edited by J.R.

4 minutes ago, J.R. said:

Thanks for the tip about hovering over the value, that is really good info 👍

Two tips now, I need a 3rd now.

  • Author
26 minutes ago, J.R. said:

I have compromised vision and a crap computer monitor but the figure looks like 3.3g and not 33g.

 

Or is that just another example of the VCDS ****witted use of values?

 

Editted, I see you were referring to the first image.

 

Thanks for the tip about hovering over the value, that is really good info 👍

I had to hover over and click on it to bring it up. Some that I clicked on did nothing 

  • Author
27 minutes ago, J.R. said:

I have compromised vision and a crap computer monitor but the figure looks like 3.3g and not 33g.

 

Or is that just another example of the VCDS ****witted use of values?

 

Editted, I see you were referring to the first image.

 

Thanks for the tip about hovering over the value, that is really good info 👍

I’m even more confused so is that good or bad,, just can’t understand why my revs hold at 1000rpm every 2 weeks,, gunna change me EGR valve and take me inlet off coz I’m now get flap stuck open on cylinder 1 ,,, 🤣🤣,, but I still love the car even though it’s throwing Wobblies. 🤣

Mine loves to stick at 1,000 rpm of course, and after a few minutes I will hear the engine note change, though revs are still on 1,000 and will stay there for a long time (I can see it has finished in VCDS logging on exhaust temps.  So now when I hear the note, I give throttle a quick blip to 1,200 rpm, a literal blip, and it then idles back instantly to 800.

 

Yes something is sticking, but I have to fix clutch before looking into this problem.

If you have laptop and VCDS cable, try to log temperature of exhaust after a run, and then when you hear engine note change and temps begin to drop, then try to blip throttle.

That actual display set is quite a rare one, there are so many variations it is hard to keep track. I did a new reductant pump and then delivery test on an A6 ultra on Friday, yuk, what a stench it makes when a lot of AdBlue is getting hot… nasty pong.

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