This was before I filled up...

I was intrigued to find out how much Ad Blue was left when the light came on.

It seems to be either excessive usage or miscalibrated

Perfect, thank you. This leads on to a 2nd question... The AdBlue fill light is on (yellow) but AdBlue level shows at 48.41%, 9.8283 litres and maximum 9.1720 litres (I.e. lower than the current level and with the light on!) This doesn't make sense to me. Is it correct? I understand that it's a 20 l...

Does anyone know whether you can read the AdBlue levels on a Ducato 250 2.3 (2021) model? I don't see it listed in the ENGINE Parameters section...

This vehicle does not have the digital dashboard.