AdBlue Discussion and Issues
Hi Folks, new to the forum. I bought a 2018 registered TO SWB KOMBI van two weeks ago. Within days I noticed the adblu reading in the instrument panel appeared not to change. Stuck on 4.5k miles. I drove down south 400 mile journey and the engine exhaust system warning light came on. Call VW assistance and their chappy fixed the engine exhaust issue, software error. I asked about the Adblu and he said the same software fix he applied should fix this as well. It's a common well known fault, in Germany there was a soft recall i.e. it gets fixed when you take your van in for a service. I've taken my van back to the dealer since the Adblu reading has not changed still fixed on 4,500 miles. Interestingly I have a data plug from my old Passat that I have connected and the app is reading 2,676 miles. This indicate s definite software issue. The dealer has ordered a new Adblu pump as their diagnostics come up blank. I'll keep you posted on outcome.
Thanks for this, my Caddy is currently in the dealer for the 6th time for the emissions light coming on.
I dont think they have a clue what they are doing!
I second this comment. They will try to fob you off with any excuse. Thing is it's all down to software nowadays and VW know there is an underlying issue. I forgot to mention the VW assistance chap issued me with a piece of paper that entitles to 8 free Adblu refills. It's VW's way of saying we have an issue but no fix at the moment instead of having s general recall. They will not admit liability. I'd prefer honesty, modern engineering is technical and with more and more emissions regulations coming out I understand there will be teething problems, don't hide it. Be honest
The update with the free refills is not a fix for the false reading AdBlue sensor, it's an emissions fix where the emissions are too high during regeneration, so the software fix is to inject lots more AdBlue during regeneration and hence more used over the life of the vehicle. so the free refills are compensation.
I always used premium fuels BP Ultimate felt the smoothest to me in my EU5 140. The EGR/cooler lasted 56kmiles before engine light came on. I have found a replacement brand new EGR/Cooler for £250 on Auto Doc. Has anyone entertained the idea of DIY?
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Well today I picked up my Caddy as the emissions light kept coming up on the dash, bearing in mind it’s been into the dealer about 6 times now.
I was told that I put in the wrong type of Adblue! Which I brought from BP Really!!!
I take the van home after they have had it for a week and now I get this on the dash!
It’s worse then it was before!!
So Back I drive to the dealer and it’s going to have a new adblue tank and injector fitted now.
5000 miles the van is not fit for purpose!
It’s been at the dealer off and on for 20 days!!!
I was told that I put in the wrong type of Adblue! Which I brought from BP Really!!!
I take the van home after they have had it for a week and now I get this on the dash!
It’s worse then it was before!!
So Back I drive to the dealer and it’s going to have a new adblue tank and injector fitted now.
5000 miles the van is not fit for purpose!
It’s been at the dealer off and on for 20 days!!!
I would strongly push back on this as a ridiculous excuse to cover their failing so that they don't try and use this to not pay for the fix.
Simply ask them "What other" AdBlue do think I used?"
I did ,apparently mine was 36% urea and it should be 32% urea they have never seen readings so high!!
then I said where should I buy it then? he says from us lol...... but hang on you filled it up twice before and I still had the same problem..
Honestly I am actually starting to believe that they are all thick as shit, totally incompetent and genuinely believe the drivel VW tell them to say!!
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Morning
We have a T6 204 it has been going a lot of regen lately so thought I would scan for codes even though no lights on the dash just to be on the safe side and it threw up the above code. So phoned VW to get booked in to get them to check it out the service lady said it might want a flush but have to wait and see. Has any one else had this kind of thing. I don’t drive it like a granny either when it gets warm it’s driven enthusiastically keeping the rpm high.
TIA
We have a T6 204 it has been going a lot of regen lately so thought I would scan for codes even though no lights on the dash just to be on the safe side and it threw up the above code. So phoned VW to get booked in to get them to check it out the service lady said it might want a flush but have to wait and see. Has any one else had this kind of thing. I don’t drive it like a granny either when it gets warm it’s driven enthusiastically keeping the rpm high.
TIA
That’s a non-error. Just an implausible signal.
There might be other errors.
See here> Vcds And Carista Fault Codes
There might be other errors.
See here> Vcds And Carista Fault Codes
The van will do two regents per tank (if alowed to complete per cycle)
One at tank 3rd full and one at 2/3rd full.
If the regen cycle is cut short..... it will continue to attempt to complete every restart . . . . . Until the tank is below 1/4 at which point it will stop and wait for a refill.
One at tank 3rd full and one at 2/3rd full.
If the regen cycle is cut short..... it will continue to attempt to complete every restart . . . . . Until the tank is below 1/4 at which point it will stop and wait for a refill.
Thanks for all your replies
I, ahem, slightly overfilled my adblue.
Got the dreaded yellow adblue light with the spanner and 650 miles until it wouldn’t start.
Called VW assist. Read the level as 13.3 litres (tank is 13 litre). He siphoned out half a litre, so taking it to 12.8litre, and tried to reset the error. No joy. Siphoned out another two litres, again no joy. The sensor said there was still 13.3 litres in the tank. He reckoned the sensor was goosed. He also said that the only way it would recalibrate would be with VAG-COM.
Tried Carista. Nothing. Tried removing the battery. Nothing.
Did some driving, and after quite a few miles, the van was asking for 0.75gal-0.75gal, but was still in error mode, and with 600 miles left.
My thoughts were that the sensor must have been working if it knew it wanted adblue.
Put 0.75gal in, and the van acknowledged it, by not asking for adblue (still with the error, and 600 miles left).
Needed to get it to recalibrate, so been driving it each evening to clock up some miles. Dropped to 550 miles tonight......
And... recalibrated itself while I was driving back up to 5000 miles (full tank) and the error light disappeared!
Excellent! I can cancel the VW booking, and book me a camp site!
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Result.... =)
Have you got this year an engine software update?
I, ahem, slightly overfilled my adblue.
Got the dreaded yellow adblue light with the spanner and 650 miles until it wouldn’t start.
Called VW assist. Read the level as 13.3 litres (tank is 13 litre). He siphoned out half a litre, so taking it to 12.8litre, and tried to reset the error. No joy. Siphoned out another two litres, again no joy. The sensor said there was still 13.3 litres in the tank. He reckoned the sensor was goosed. He also said that the only way it would recalibrate would be with VAG-COM.
Tried Carista. Nothing. Tried removing the battery. Nothing.
Did some driving, and after quite a few miles, the van was asking for 0.75gal-0.75gal, but was still in error mode, and with 600 miles left.
My thoughts were that the sensor must have been working if it knew it wanted adblue.
Put 0.75gal in, and the van acknowledged it, by not asking for adblue (still with the error, and 600 miles left).
Needed to get it to recalibrate, so been driving it each evening to clock up some miles. Dropped to 550 miles tonight......
And... recalibrated itself while I was driving to 5000 miles (full tank) and the error light disappeared!
Excellent! I can cancel the VW booking, and book me a camp site!
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Exactly same happened to me - but luckily I had a longer drive on motorway and it just reset 40-50 miles in
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