Filling AdBlu From A Pump

SlothBurger

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T6 Pro
Sorry to be asking another dumb question. Mostly I'd filled adblu from a can & I've to be careful not to overfill it. I've notice a garage with an adblu pump on one of my regular routes.

Presumably do these pumps shut off automatically when it's full so not possible to overfill?
 
I realise that some have had some problems but why not just let the pump do its job? The reason I query is that when I fill from a bottle I just let it do its own thing until it stops, what is the difference I have never had a problem with that method but I have never used a pump?
 
Be directed by the adblue “fill up time” info. It tends to quote something like 2 - 2.5 gallons. Convert to litres and fill up to that level. Works for me every time.
Mate of mine totally filled up and f*cked up his Range Rover to the tune of £900 repairs.
Use the search engine and learn rather that reading others’ interpretations….
 
Sorry to be asking another dumb question. Mostly I'd filled adblu from a can & I've to be careful not to overfill it. I've notice a garage with an adblu pump on one of my regular routes.

Presumably do these pumps shut off automatically when it's full so not possible to overfill?
No. If you used a pump, when the cut off was reached the tank will already be over filled..... Ie liquid up in the neck.

Just fill up what the dash says, no more.
 
Sorry to be asking another dumb question. Mostly I'd filled adblu from a can & I've to be careful not to overfill it. I've notice a garage with an adblu pump on one of my regular routes.

Presumably do these pumps shut off automatically when it's full so not possible to overfill?
The ones I’ve used allow you to select the number of litres and it will auto stop at that. Or just manually stop it from the screen. Do not fill more than the dash says and do not rely on the pumps auto stop as that will be too late. Over filling is the cause of many issues.

Watch the price in those pumps, some are stupidly expensive compared to a 5 or 10L bottle. However, some are a good price. 🤷‍♂️
 
Unless all these pumps are faulty or are really meant for Heavy Goods Vehicles their really should not be a problem. I nearly always fill from a larger container, bigger than what is needed. I invert the container and let it run out into the filler, it comes reasonably quickly and when it stops bulbing and no longer delivering ,then and only then remove I the container. I take no care at all and have never had a problem since owning from new. Occasionality I may start with a partially empty container and then finish of with a new one same result no problem. What is the difference for those who have used both, does the pump deliver far faster then a large container or a smaller one for that matter. I presume that people are following the instructions in the hand book because not every one does I have noticed. I never measure the amount it just flows until it stops.
2019, 146kw, 199bhp, T6 Caravelle 4Motion +D/L

:)
 
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I regularly fill up from the pump. Do not fill until the pump knocks off!!! Don’t put more than the maximum amount asked for on the MFD. if you “let the pump do its job” you will overfill the tank, and then you will be back here asking how to get rid of the dreaded 600 mile countdown. Don’t ask me how I know this. :rolleyes:
 
I regularly fill up from the pump. Do not fill until the pump knocks off!!! Don’t put more than the maximum amount asked for on the MFD. if you “let the pump do its job” you will overfill the tank, and then you will be back here asking how to get rid of the dreaded 600 mile countdown. Don’t ask me how I know this. :rolleyes:
The inverted bottle method does not over fill the tank it just stops delivering as the pump aught to. Have you yourself had a problem or are just being prudent following people problems? maybe it different for different vehicles hence why I posted my vehicle details.
 
The inverted bottle method does not over fill the tank it just stops delivering as the pump aught to. Have you yourself had a problem or are just being prudent following people problems? maybe it different for different vehicles hence why I posted my vehicle details.
I follow the amounts displayed on the MFD. the first time I used a pump, the MFD was asking for a maximum of 10litres. I filled at the pump and wasn’t paying attention, the pump knocked off automatically and I realised I’d put 14litres in and brimmed the tank. The AD Blue distance didn’t reset until I’d done around 1500miles. I.e. until I’d burned off the excess AD Blue and the system had been able to find its datum.
So I’m not theorising or saying this is was should or shouldn’t happen, it’s empirical.
 
I follow the amounts displayed on the MFD. the first time I used a pump, the MFD was asking for a maximum of 10litres. I filled at the pump and wasn’t paying attention, the pump knocked off automatically and I realised I’d put 14litres in and brimmed the tank. The AD Blue distance didn’t reset until I’d done around 1500miles. I.e. until I’d burned off the excess AD Blue and the system had been able to find its datum.
So I’m not theorising or saying this is was should or shouldn’t happen, it’s empirical.
So it appears that in your case the pump was faulty it should have just shut off regardless presuming the nozzle was in the hole which I am sure it was. I suppose one could fill a used AdBlue bottle and watch how quickly or not the pump shuts down it should stop immediately I would have thought 4L over is almost a gallon one might expect it to be pouring out on the ground at that stage.
 
So it appears that in your case the pump was faulty it should have just shut off regardless presuming the nozzle was in the hole which I am sure it was. I suppose one could fill a used AdBlue bottle and watch how quickly or not the pump shuts down it should stop immediately I would have thought 4L over is almost a gallon one might expect it to be pouring out on the ground at that stage.
The pump wasn't faulty, it knocked off as soon as the level got to the end of the gun, i.e. top of the ad-blue filler tank. Which is the whole point, the tank is "full" before the actual level gets to the top of the filler, by that time the tank is overfilled and the system is confused. If it was just a case of filling the tank until it was full, VW wouldn't have gone to the trouble of putting a display on the dash telling us how much to put in.
The pump worked as it should, i.e. it stopped when the tank was brimmed.
On the T6, you shouldn't brim the tank.
Ergo, do what the van asks, not what the pump thinks you want.
 
The pump wasn't faulty, it knocked off as soon as the level got to the end of the gun, i.e. top of the ad-blue filler tank. Which is the whole point, the tank is "full" before the actual level gets to the top of the filler, by that time the tank is overfilled and the system is confused. If it was just a case of filling the tank until it was full, VW wouldn't have gone to the trouble of putting a display on the dash telling us how much to put in.
The pump worked as it should, i.e. it stopped when the tank was brimmed.
On the T6, you shouldn't brim the tank.
Ergo, do what the van asks, not what the pump thinks you want.
If that is the case then when i fill with the bottle, I shall have to check. I think that the AdBue is starting to come into the filler neck that might be just that the neck is slow but next time I will try and observe exactly what happens.

As an aside and a totally different vehicle so perhaps irrelevant, daughters 2021 Dacia Duster 4x4, she has never used a pump either she tells me but fills in exactly the same way as myself but never had a problem neither of us ever measure admittedly or interestingly her car does not give the required amount just fills but that is a different and very much cheaper vehicle.

Usually the inverted fill regardless of what is being filled requires the filling end or tube to eventually be submerged and then it stops, lift it up from the surface and it restarts. For the AdBlue tank to stop the fill before it reaches the neck would require some other mechanism to prevent flow.
 
Get 10l of Adblu for £10 upwards, B&Q currently £10, Wickes £13, work out from MFD gallons read out what that is in litres and empty that amount into the Adblu tank.
I've suffered the 650 miles countdown of doom non reset twice, once going to Glasgow and last year in France when we abandoned our trip rather than drive on towards the event horizon to see what happened... properly horrible mind games. 🤕
 
Get 10l of Adblu for £10 upwards, B&Q currently £10, Wickes £13, work out from MFD gallons read out what that is in litres and empty that amount into the Adblu tank.
I've suffered the 650 miles countdown of doom non reset twice, once going to Glasgow and last year in France when we abandoned our trip rather than drive on towards the event horizon to see what happened... properly horrible mind games. 🤕
Thank for the heads up on Ad-Blue prices. I can imagine the stress inside you cab. the more I read about modern vehicles the more i just wished I stayed with old and tried. I never go any where near London these days and avoid most cities anyway as much as I can now anyway. These are all basically commercial vehicles its a disgrace how temperamental they appear to be.
 
Hi @mmi , do use a pump for AdBlue? Do you allow it to to fill until it switches its self off or do you measure out the amount to prevent over filling or do you use a container and allow it to flow until it has finished or always measure the requested amount?
Rarely use a pump as it's more expensive over here. I use 10 litre containers to fill to the brim. Then the AdBlue level when the flow stopped is within reach by finger. Have been doing this 9 years now (on several T6) without issues - simply can't reproduce the AdBlue fault by filling to the brim - so perhaps the issues arise when not replenishing to the brim ;)

And, indeed when brimmed the amount of AdBlue filled is about 4 litres more than shown on the dash.
==> AdBlue Refill Query
==> NOx sensor and Adblue faults codes

When chatting about "AdBlue not registered" we need to make a clear distinction between the two values shown on MFD
a) estimated remaining range​
b) fill min/max amounts​
the latter is always up-to-date immediately but members seem to focus on the range display (possibly because the fill amounts are not shown when relatively full - but it definitely means sensor sees it correctly).

Below a sample when "underfilled" and possibly because of that the range didn't update but the MFD fill amounts were immediately up-to-date.

1755454197947.webp

Also engine software version most likely makes a difference as changes of AdBlue system were advertised . With the original software the "range not updated immediately" issue was observed a few times (as in the plot above).

With the updated software hasn't happened yet - not even when "underfilling" less than on dash.
==> [T6_measured] NOx emissions, AdBlue consumption, DPF regeneration - Before and after ECU update
 
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