Will try the 30mile roundtrip to my local Skoda dealership comes first.

 

So lucky that the warranty is the manufacturers so with SKODA UK.

 

Handy with ARNOLD CLARK GROUP being one of the biggest independent motor group in Europe or such they can sort out there sales mistake easy enough, 

compensate if that is due.

 

They can even take back the faulty car if it is faulty and replace with one fit for purpose if there is a major issue.

15 hours ago, Llanigraham said:

 

Had no problems with my 150 and it does a couple of short runs every week. Hardly ever notice it doing a regen, and the Adblue tank seems to last 5k miles between reflls.

Had no problems with my 150 either. I do a fair number of short runs and get a regen every 200 miles almost exactly (within 5 miles of that figure) and have managed never to interrupt a regen when I notice it happening. My Son’s Superb has exactly the same engine and also does regen every 200 miles on the dot. He does more long runs than me. If on arrival at home I notice a regen then I now know exactly how far down the road to go before turning round and coming home with the regen complete. 

 

Interestingly my Son’s Euro6 150ps Superb (17 Reg) does not have adblue. I think they all do now though (??)

Edited 12 March, 20188 yr by Yetiflute

23 hours ago, Yetiflute said:

Interestingly my Son’s Euro6 150ps Superb (17 Reg) does not have adblue. I think they all do now though (??)

When we bought ours (a 56 reg 150 4x4) the 2wd 150s didn't have Adblue, but the 150 4x4 and the higher output diesels all did.

As with 190 PS 2.0 TDI Superbs with Ad-blue and the 150 ps had not at one point in time.

 

Now the 1.6 TDI Karoq is without SCR, but unlikely to be so after September 2018.

Latest update on my DPF problems  - Another straight in to Limp mode without any warning a few weeks ago. My local skoda dealer tried to tell me that as 2 regens had been done by them I would have to pay from now on. Argued the case and they did the regen Free of charge. Raised a case with Skoda and after a few days the came back to me after talking to my local dealer  and told me my fault for not doing enough long trips. Recently did 2 trips of 100 miles each in 2 days and and my free version VAG-DPF told me a regen had taken place. I now check with the VAG DPF app every couple of days.There have been no interrupted regens since the last regen.

Today I bought the full app and it is telling me the DPF is 72% full. See attached screenshot from my phone.. I have not figured out yet how to read  the results so any help would be appreciated.

Going to do a 70 mile ruun on Friday providig it doesn't go into limp mode tomorrow.

Do owners of this app always leave it running on display of their phones whilst driving?

 

As far as the mis selling of the car - my local CAB and Trading Standards were about as useful as a chocolate fireguard so I will have a go at Arnold Clarke myself in the vey near future.

Sorry for dragging this post on for so long but I really do worry about the reliability of this car.

 

On 11/03/2018 at 23:12, Ajay24 said:

Back to the original post. Car has gone straight into limp mode 3 times now2 with just the engine management light and exhaust problem light(yellow) going on as limp mode kicks in. 

I have only had the DPF warning light (white) show up once  and that was well before the first limp mode event.

 

I'm a little confused.

 

You refer to three lights: the engine management light, the exhaust problem light and the DPF warning light.  If I'm understanding this correctly, the DPF warning light - the one that looks like this:  has only ever come on once, and it went away (as it should do if you let the car do a 'special' regeneration by following the procedure in the manual) before the first incident of the car going in to limp mode.

 

Since then the car has gone in to limp mode three times, with the "exhaust problem" light:  (which is actually called the emission control system light in the owner's manual) and the engine management light:  (which, again according to the manual, should be flashing) both on.

 

The response to the limp mode in each case - first by Skoda Assist and then the dealer - seems to have been to force a regen.  It's not clear to me why they thought that would fix the problem, though quite possibly their diagnostics indicated that it was required.  But the forced regens don't on the face of it seem to have fixed the issue that is causing the car to go in to limp mode.  I wonder whether what's happening here might be a case of lazy work by the Skoda Assist tech and dealer's techs: plug in the diagnostic machine, it says do a forced regen, that seems to make the problem go away, hand the car back as fixed.  But could there be something else going on which isn't being picked up or interpreted correctly by the diagnostic machine, or by the techs, and which is being masked by the forced regen?

 

Meanwhile, as a result of what the techs say they've done to "fix" the problem, you are getting fixated on the DPF when AFAICS the car has given you no indication that there is anything wrong with it.  It's my understanding that, if the DPF was severely clogged to the extent that a 'special' regeneration by the driver doesn't do the trick, then the DPF light will flash.  You don't seem to report seeing that.  And VAG DPF seems to be reporting fairly normal DPF regeneration behaviour.

 

Bottom line: I wonder whether there's something else going on in your engine rather than (or perhaps as well as) issues with the DPF, and you need to be a bit more forceful with the dealer's service department and/or SUK to investigate the issue more thoroughly if/when it goes in to limp mode again.

Edited 25 April, 20188 yr by ejstubbs

Thanks for your thoughts,

Only once have I seen a WHITE flashing dpf light on the MAxidot screen and that was a long time before I started having this limp mode problem.The three yellow warning lights all come on at the same time just as the the car goes into limp mode without any prior warning and they do not flash. I have told the dealer more or less what you have said and that the fault may not really be the DPF and they have answered that their diagnostics showed no fault codes. Skoda UK  agree with garage over this. Warranty on the car ends in September and I think if I can manage for the next few months then the Yeti will reluctantly have to go for a petrol SUV even though I still think the car is far too good to change.

9 hours ago, Ajay24 said:

Today I bought the full app and it is telling me the DPF is 72% full. See attached screenshot from my phone.. I have not figured out yet how to read  the results so any help would be appreciated.

 

 

 

I don't think there is anything strange in that screen shot.

 

When the soot mass gets above ~18g the car should start an active regen. If it gets above ~24g, you'll get the DPF light and need to do a 'regen drive' to help out. The 72% is showing how close to 24g soot mass you are. During a regen both soot mass figures should drop and so should the 72%.

 

If for any reason the car can't do a regen, the soot mass will keep increasing. Above ~40g will need a dealer regen (DPF, ECU, glow plug lights), above ~45g is normally the end of your DPF as it's no longer safe to regen.

 

Assuming the car is working normally, it's the oil ash that determines the DPF lifetime. You're currently at 5.5g or 7% suggesting an expected life of 150k which isn't unusual.

On 11/03/2018 at 18:25, Sad555 said:

So we all agree it’s the 150bhp with adblue BUT back to the original post about going into limp mode and excessive regens  and I was wondering if the 150 is as troublesome as the 170  with dpf and regens etc?

 

My 170 has had the fix, I've heard a regen fan run on once since I bought it 12 months ago, it goes like a train, corners on rails, doesn't mind deep snow, parks itself and has loads of toys. Not all fixed 170s are troublesome.

 

They are a powerful workhorse designed for pulling and eating miles. If you use them for that and keep them well maintained they will serve you well. The fix does not always mean trouble.

many/most are ok,a friend with a  (fixed)170 superb had just done 80,000 in the last 3 years,experienced water pump failure (a known post fix fault) £500+ repair and he was unaware of the trust building so as skoda didn't tell him and he didn't know £500+goodbye. mine has always run great as it should and have always been of the opinion if it aint broken leave it alone,you only have to look on SOME websites to see the vw,skoda,audi and seat owners tales of woe post fix,and the denials from VAG who only brought in tbm due to the high volume dpf and egr repeated failures.

5 minutes ago, Sad555 said:

a friend with a  (fixed)170 superb had just done 80,000 in the last 3 years,experienced water pump failure (a known post fix fault) £500+ repair

 

How can the "Fix" cause the water pump to fail?
If anything the fix reduces the temperature the engine runs at to lower NOx emissions.

Edited 26 April, 20188 yr by Urrell

+1

Just what I thought.

 

Reminds me of the joke about the guy who fell off a very tall building; when passing the 20th floor was heard to say still ok so far!

look on the Volkswagen diesel customer forum emission scandal,it appears from what i can understand the higher heat produced by post fix  to clear the dpf and egr in nox reduction is causing many more problems for the engine,remember the engine emission system was designed to CHEAT euro 5 and all was well because it performed well and produced too much nox that they thought could not be detected but when vag got caught cheating they had to come up with measures to satisfy some stds (not that the british?european gov have done much about it) and they said theFIX they had applied would not cause any problems or increase fuel consumption and because the European standard is lower than the  American one they are getting away with it to a large degree but as they cant meet USA stds hundreds of thousands of VAG vehicles are stacked in the desert,also some legal firms in this country are in the process pursuing VAG through the courts.

To say the fix is harming the coolant pump is pie in the sky.
How do you reduce NOx in the cheapest way for VAG, inject more fuel, this burns much cooler than the lean mixtures they originality had on the engine for economy claims.

17 hours ago, Ajay24 said:

The three yellow warning lights all come on at the same time just as the the car goes into limp mode without any prior warning and they do not flash.

 

Ah, OK - I understood that you had only had the two warning lights when the car went in to limp mode: engine management (which according to my reading of the manual should be flashing if it comes on at any time other than when you first turn on the ignition), and emission control system,.  Three solid lights doesn't seem to match what the owner's manual says should happen if you need a dealer regen (it clearly says that the DPF light should flash, since a solid DPF light just means that it needs a 'regen drive', to borrow langers2k's useful term), although it does hint that the car will go in to limp mode.  But it's quite possible that the manual is inaccurate (which wouldn't be the first time, but is decidedly unhelpful when you appear to be faced with a sick car).

 

17 hours ago, Ajay24 said:

[the dealer]  have answered that their diagnostics showed no fault codes. Skoda UK  agree with garage over this.

 

You can pull fault codes off the ECU yourself using another ODB II Android app.  Torque is one of the commonly used ones but I've found that it sometimes won't get all the codes.  Carista seems to work better, but requires an ongoing (and not cheap) subscription to access all the functionality.

 

It does sound as if the dealer's supposed 'remedial' action has repeatedly failed to fix whatever the problem is (which calls to mind the definition of insanity commonly, but almost certainly incorrectly, attributed to Einstein: "doing the same thing over and over again and expecting different results").  Rather than investigating the issue properly, they then fall back on blaming the customer.  Easy to do if you are, or can claim to be, in a position to have better information than the customer does.  So running a VAG DPF check periodically, and comparing the results against the guidelines provided by langers2k, might give you a baseline from which to argue your case with the garage if you get another limp mode incident and you can demonstrate that the DPF appeared to be fine shortly before.

Many thanks to Langers for explaining how to read the reults of my VAG-DPF app (paid version)

With that information in mind I connected the OBD2 and my mobile phone and did about 75 miles dual carriageway in 4th and 5th gear over 4500 rpm and watched the results until it started a regen (220 miles since last regen) and yippee doo the soot levels fell from 74% to 22% and the soot mass Calc fell from 22.1 to 5.84. So  hopefully I have cracked the problem with a lot of help from fellow Yeti owners and will keep using the DPF app to avoid any more limp mode episodes.

See screenshot showing results a few minutes after the regen ended.

Its still a real nuisance having to do 75 miles every now and again just to keep the Yeti free from the dreaded limp mode.

 

Hi EJSTUBBS. I understand what you are saying and by now you may have seen my latest post which appeared just before yours. I will have a look at my manual to see what it says about solid or flashing warning lights. At the moment I am a lot happier today than a few days ago.

34 minutes ago, Ajay24 said:

Its still a real nuisance having to do 75 miles every now and again just to keep the Yeti free from the dreaded limp mode.

 

It shouldn't need anything like 75 miles...

 

For example, when I recorded my CR140 doing an active regen, it took less than 5 miles from start to end at ~70mph in sixth gear. The engine would need to be up to temperature first but that should only take 10-20 miles depending on ambient conditions.

 

If everything is working normally, you should only have issues if you do lots of short journeys where the engine can't get to temperature and start an active regen.

 

Still, at least you can monitor your DPF during your normal drive and if it gets above 25g, consider taking a longer route home

Thanks Langer, just letting you know I kept driving for probably threequarters of an hour just watching the levels going up and up until the the dpf symbol on the app turned red and the regen started. It took between 15 and 20 miles to turn green again. I will keep monitoring the DPF every few days and always take a screenshoot to prove what is happening for future reference.

When I bought my ODB2 adapter it came with the Torx app which I have also ran and that app indicated no fault codes  from the ECU.

Edited 26 April, 20188 yr by Ajay24
spell mistake

By chance I’ve just acquired the VAG DPF app and successfully used it today with a previously discarded Android phone. Results show that after 11000 miles of mainly short runs all is very well with my dpf condition etc. I now do mainly short runs rarely getting regular chances to have long runs. I am very aware when an active regen starts and then if necessary always continue driving beyond my intended destination until the regen has finished. One thing that surprised me is how soon after commencing a journey from cold the active regen can be started. Last week I drove 2 miles to collect papers. On setting off back the regen started almost immediately when the engine temp was still quite low - even the water temperature gauge still not fully up. I was half expecting this regen to start soonish as I had covered 200 miles since the last one and that is almost always exactly the distance my car needs.

 

I think, with appropriate awareness and caution, that short journeys do not necessarily cause problems with running a diesel car (my overall preference)

The standard baseline routine for my previous 140 was three miles to work and back every weekday, and a supermarket run on the Saturday.  Longer runs would be interspersed randomly, mainly at the weekend and rarely more than 20 miles or so apart from a regular 700-mile round trip to see relatives every couple of months.  According to some, that usage profile should have killed the DPF - but I only saw the light come on to request a 'regen drive' once in entire the seven and a half years I had the car (and as langers2k says, you shouldn't need to drive anything like 75 miles to make it go out again).

 

To top it off, I used supermarket fuel the whole time as well.  And I was happy with the trade-in I got on it against my new low-mileage 150.

 

I should obviously never have bought a diesel, let alone another one...

Edited 26 April, 20188 yr by ejstubbs

My useage profile is similar to above

My wife’s Fabia diesel is used much the same and has done only 12k in last 3 years.

Same system and engine as Greenline and no issues at all so far.

Not had the “fix” though

On 26/04/2018 at 16:25, Urrell said:

To say the fix is harming the coolant pump is pie in the sky.
How do you reduce NOx in the cheapest way for VAG, inject more fuel, this burns much cooler than the lean mixtures they originality had on the engine for economy claims.

A link to this artical was posted by ryemanrye an