Adblue

[Paul Martin]

I have a message up on dash that there is a adblue system fault. The car is counting down from 1000 km. This is twice now it's happened. Car under warranty first time. Does this happen every time the adblue runs out. I put 10 litres into it yesterday and it still displays the same message 

[Steve Q]

The float/level sensor could be stuck 

I'd recommend a diagnostic check to see if any fault codes flag up.