Apologies but Adblue question

[FunkyClaude]

Hi, I know that this has been discussed previously so my apologies. My Adblue warning light came up and when it got to down 650 miles I put in 10 litres of Adblue. I waited at least 5 minutes before I switched the ignition on and a further minute before I turned over the engine.
Unfortunately the display read the same. I have a cheap OBD2 scanner and put it on.... no faults. I tried driving for a while but no success.
I finally took to a VW specialist who put their super duper diagnostics on it and again showed no fault and nothing to reset.
They suggested taking it for a long drive and trying it the following morning.
Did that and still the same. So apparently no fault on Adblue system or any part of the van that could affect it but its not resetting. I'm loathed to pay a few hundred quid to have a system mapped out when there is no fault with it.
Has anybody got any suggestions please. Thanks in advance.

 

[Skyliner33]

So, did you check in the Driver Information System the volume of AdBlue the van was telling you to put in?

 

[StratosFearXX]

Same question, how much was it asking for? I believe it's a 22 litre tank on a 6.1, you may have not put enough in?

 

[Skyliner33]

Same question, how much was it asking for? I believe it's a 22 litre tank on a 6.1, you may have not put enough in?

Not all 6.1 have a bigger tank.

 

[FunkyClaude]

So, did you check in the Driver Information System the volume of AdBlue the van was telling you to put in?

Hi , yes it was asking for 11.4 litres and I put in 10.

 

[StratosFearXX]

Not all 6.1 have a bigger tank.

Yeah

 

[FunkyClaude]

Same question, how much was it asking for? I believe it's a 22 litre tank on a 6.1, you may have not put enough in?

Hi, its a T6 not 6.1. It asked for 11.4 litres max. I put in 10.

 

[StratosFearXX]

Hi , yes it was asking for 11.4 litres and I put in 10.

11.4 minimum?

 

[FunkyClaude]

This is still asking for the same amount after 10 litres.

 

[FunkyClaude]

11.4 minimum?

2 gallons min , 3 gallons max = 11.4 litres max

 

[Drive Wayne]

I would certainly recommend changing the units to litres, just in case it's not imperial gallons! Easier to see exactly what is required in litres. Your tank will be the smaller adblue tank the same as my ancient 2020 6.1, I've never put more than 5 litres in mine, the last time I put 4 litres in. Possibly overfilled?

 

[FunkyClaude]

I would certainly recommend changing the units to litres, just in case it's not imperial gallons! Easier to see exactly what is required in litres. Your tank will be the smaller adblue tank the same as my ancient 2020 6.1, I've never put more than 5 litres in mine, the last time I put 4 litres in. Possibly overfilled?

I set the units in the MFD to gallons UK so thought just doing a UK gallons to litres calc would do. Would sucking a couple of litres out be recommended ?

 

[Drive Wayne]

I set the units in the MFD to gallons UK so thought just doing a UK gallons to litres calc would do. Would sucking a couple of litres out be recommended ?

Certainly wouldn't hurt!

 

[Skyliner33]

2 gallons min , 3 gallons max = 11.4 litres max

That’s US gallons. Imperial gallons is 13.3l

 

[Skyliner33]

I set the units in the MFD to gallons UK so thought just doing a UK gallons to litres calc would do. Would sucking a couple of litres out be recommended ?

10l is between the max and min in imperial gallons for 2 -3 gal

 

[Salty Spuds]

2 gallons min , 3 gallons max = 11.4 litres max

3 imperial gallons is 13.5l

 

[FunkyClaude]

My apologies. Googled conversion and obviously didn't check it was US. So now unlikely its overfilled as 10 litres is in the middle of 2 - 3 imperial gallons as Skyliner33 said.

 

[Skyliner33]

3 imperial gallons is 13.5l

I wasn't far out with 13.3 in my head maths

 

[Salty Spuds]

I wasn't far out with 13.3 in my head maths

Mine was a guesstimate too

 

[Skyliner33]

Mine was a guesstimate too

Oh you were closer. 13.6383l