Advice please ASAP

Here I go again. Can anybody interpret these 2 VAG-DPF  screen grabs taken this morning. The first pic ahows readings before a 55 mile non stop dual carriageway run at 2000 rpm in 4th & 5th and the second when I got home. Costantly checking the DPF reradings as they went up and up and no regen happened.Do not want the car to go into unwarned limp mode again as it has done 4 times before because I have a 6am start on Friday June 1st to get to Manchester airport for a 2 week holiday in USA. (70 mile motorway trip)

 

Help wanted as to whether I should try another long run to try and get a regen to happen. The photo shows 21.54 soot mass and 90 % full filter.

The bar graph across the top indicates how full the filter is with soot, not ash. when it gets to 100% the ECU should start a regen which will (in my case) take it down to about 23% so at present nothing to worry about. the figure that is important is the oil ash residue this tell you how full of ash the DPF is. 

you do need to tap on all the squares to activate them as some are not active at present.

you have another 10% to go before a regen depends on how far you are from the airport.

 

I find that unless i am thrashing the hell out of the Yeti it rarely goes into passive regen I did once manage to keep it in passive regen for most of a journey to Devon and back (M4/M5) which was done at above 2500rpm for the whole journey.

Edited 28 May, 20188 yr by idleness

Thanks for that Idleness it's just that I was told some time ago thaat when the soot mass gets to around 22 it would automatically start a regen?  Just worried that the car will go into limp mode before my very important trip on Friday so will have another dash up the motorway tomorrow to see what will happen.

Absolutely peed off with this and can't wait to very reluctantly get rid of this really lovely car

i dont know about soot mass mine always triggers at about 100% on the bar graph, there is a milage limit which is about 375 as mine triggered at 75% on the way back from Devon after 375 miles.

just dont stop it in the middle of a regen, i have been known to keep driving if the revs are uplifted when i get home.

Edited 28 May, 20188 yr by idleness

3 minutes ago, idleness said:

just dont stop it in the middle of a regen

 

Why not? It'll continue the regen when next started if needed...

2 minutes ago, langers2k said:

 

Why not? It'll continue the regen when next started if needed...

 

on mine if i stop it in the middle of a regen then it will only regen down to 35% not the more normal 23%.

I also depends on whet your next journey will be if its short and about town it may not restart.

Luckily I rarely drive about town but when I do boy does it soot up quickly.

My bar graph has gone from 77% to 90% in 57 miles today whichmeans it will probably do a regen tomorrow. Will keep my fingers and everyting else crossed.

 

As it ws such a lovely evening took YETI out and after maybe 15 miles the regen started and completed.

The VAG DPF app is a boon if you know how to read it properly.Use it most of the time nowadays and still learning thanks to you guys.

Can now go on my airport run  without any worries. see the screenshot .

 

I happily wallow in my preferred state of ignorance rather than one of too much information.

It does make you wonder why a little light couldn’t have been included among the many others on the display to indicate when a  regen is active.

1 hour ago, Sad555 said:

It does make you wonder why a little light couldn’t have been included among the many others on the display to indicate when a  regen is active.

 

Because you don't need to know and a light would probably confuse most users

 

If the system is working properly, there is no need to change driving style, take extra drives or continue driving to finish a regen. The car will take care of the DPF perfectly well itself.

 

When the system does need help, due to faults or too many short trips, it'll ask for help using lights.

^^^^^^^^^^^ Thanks for that answer........that must be why there has never been any queries in Any of the Briskoda sections in the last few years about regens because nobody needs to know!

Edited 29 May, 20188 yr by Sad555

The warning light is there to tell you something's wrong. Does anyone really need a warning light to tell them something's right?

I'm getting the impression this "app" is actually giving too much (un-neccessary) information and is confusing people.

That why a simple light MIGHT BE of a indication to some.Bit like no light /indication to tell you the 4 w d is /isn’t working when it isn’t.also the traction control light comes on when it’s active.

Over 110k in Yeti diesels to date, and never worried about this or ever seen a warning light for this issue.

 

And my wifes diesel fabia only does 4k a year and also has never had an exhaust warning light.

 

I think too many worry about this; I have never had to take a car on a run and waste fuel because of this, and I think if I had this app it would lead to unwarrantied concerns.

Is the diesel Fabia a Vrs by any chance?

4 hours ago, Sad555 said:

^^^^^^^^^^^ Thanks for that answer........that must be why there has never been any queries in Any of the Briskoda sections in the last few years about regens because nobody needs to know!

 

Knowing that your car does regens and needing to know when it's doing one are two different things.

 

That thread is for people who are unaware their car does regens and are rightly concerned about a burning smell. I don't think adding a warning light to that situation would help...

If there was a light/indication there would be no need for anybody to be unaware and no need for apps

If there were a light which came on every couple of hundred miles, apparently at random, then the dealers would be full of people complaining about a warning light which comes and goes, people demanding it be fixed because the light shouldn't be coming on if everything is working okay therefore something must be wrong, people driving 20 miles past their destination because they're too scared to stop because the light is on and they know it's doing a regen, all sorts of issues.

 

You don't need a light to tell you the fuel tank is full, just a warning to tell you it's nearly empty. Engine oil the same. Coolant, screenwash, handbrake, doors closed, and many other systems all run with no warning light telling you "I'm okay here!", but might display a warning if something needs attention. Fog lights have a light to say they're on, but no light to say they're off.

 

It's fair to say that the traction control light coming on is because the driver needs to know the car's losing traction (icy roads, driving like a **** etc.) but there isn't a light telling you when it's not doing anything. But the warning light stays solid when something goes wrong.

 

The dpf is designed to regenerate and is controlled in its action, so there's really no need to tell anyone it's simply doing what it should be doing. If people are curious about how it works then they'll find out what and how, but overloading the driver with pointless information won't do much other than make people ask "Why did they need to put a warning light on the dash for something I can't control or do anything about?".

3 hours ago, idleness said:

Is the diesel Fabia a Vrs by any chance?

No just a 1.6 100ps SE. Goes really well though. Much faster than previous 110ps Yeti, but not as good as 150ps I have now

the 4 x 4 system doesn't have a light/indication to tell you its working or not working,luckily i had realised this BEFORE the warranty ran out and got it repaired under warranty but some haven't been so lucky.ps the handbook also advises you to check all fluid levels on a regular basis so you don't have to wait for any lights to come on(even if they are fitted)

Edited 29 May, 20188 yr by Sad555

30 minutes ago, Sad555 said:

the 4 x 4 system doesn't have a light/indication to tell you its working or not working,luckily i had realised this BEFORE the warranty ran out and got it repaired under warranty but some haven't been so lucky.ps the handbook also advises you to check all fluid levels on a regular basis so you don't have to wait for any lights to come on(even if they are fitted)

 

The 4x4 system should have been able to warn the driver it wasn't working, that's a fail on VAG's part.

 

Regular checking of fluid levels won't help with a fault causing loss with the potential to cause damage, this is what the warning lights are for.

 

If the DPF needs attention or any intervention from the driver, it'll ask for it.

 

None of these system need an "it is working as intended" light...

Quote “The 4x4 system should have been able to warn the driver it wasn't working, that's a fail on VAG's part.”         Precisely ,I would have preferred some indication as to the system failing rather that picnic trays on the front seats but they assumed I didn’t need to know the system had failed!but it is helpful that there are warnings for EGR AND DPF failure as these fail quite often.

 

 

Edited 29 May, 20188 yr by Sad555

But a regen isn't a failure.  It's meant to happen if the DPF is working as intended.  So it doesn't need a warning light.  That's precisely the point that people are making and you seem to be wilfully misunderstanding.