Adblue problem on Audi A4

Blues14

Hey so I got a warning on the dash for the adblue it say no restart in 900km engine management light is on also on.so went and got 10 litres of ad blue but it only took around 4 litres to fill and when I turned car back on still says need to fill adblue iv drove for 100km today and still on.anyone have this issue before?
Thanks

zg3409

Sometimes if it is overfilled, then it can't detect the fill level. Some cars use ultrasonic fill.measurement that gets confused when at 100%.

It often says on dash fill, minimum amount x Max amount y.

It might need dealer to reset known level to 100%, or a back street with VAG COM
It might go away when a little bit is used up and it can then see the level correctly.

RootX

Blues14 wrote: »

Hey so I got a warning on the dash for the adblue it say no restart in 900km engine management light is on also on.so went and got 10 litres of ad blue but it only took around 4 litres to fill and when I turned car back on still says need to fill adblue iv drove for 100km today and still on.anyone have this issue before?
Thanks

Hi,

had a similar issue with our Seat Alhambra (2013 model, 2.0TDI 140ps).
The warning with the spanner and the 'no restart in xxx km message' don't necessarily mean you're running low in AdBlue instead something has triggered an error in the emissions management system.

You need to get the engine management scanned for errors.
In our case the issue was related to the NOx sensor(efficiency below threshold) and replacing the sensor seems to have fixed it.

CoBo55

Blues14 wrote: »

Hey so I got a warning on the dash for the adblue it say no restart in 900km engine management light is on also on.so went and got 10 litres of ad blue but it only took around 4 litres to fill and when I turned car back on still says need to fill adblue iv drove for 100km today and still on.anyone have this issue before?
Thanks

Common enough problem on the A4 dealer will sort it for you a lot won't even charge you if it can be fixed via software. As someone said earlier don't overfill the tank it will tell you the max amount required.

Toyotafanboi

Seen loads give trouble, not recognising a fill. Some need a software update, there is a TPI for fsulty sender units too though so pray it's just the update.

Before going to all that though, when was the last time you filled adblue? Does it seem plausable that the car only needed 4x litres or do you think you can get more in?

Blues14

Toyotafanboi wrote: »

Seen loads give trouble, not recognising a fill. Some need a software update, there is a TPI for fsulty sender units too though so pray it's just the update.

Before going to all that though, when was the last time you filled adblue? Does it seem plausable that the car only needed 4x litres or do you think you can get more in?

Iv only had the car for 2 months so don’t know when it was done last it’s under warranty so they would have to cover the cost

Toyotafanboi

Yeah if it's under warranty it should be covered.