I have just bought a Carado camper van based on a 2021 Ducato Series 4 Panorama Van. This is my first brush with AdBlue and I don't know how much was in the van when it arrived. The manual tells me there will be a warning when the AdBlue is getting low but not what the form of warning is.

Load capacity – kg . Gross weight AdBlue tank . AdBlue tank. Gearbox type FIAT DUCATO 35 LH1 . price on request. Refrigerated truck. Load cap. 770 kg Euro

See how much AdBlue your Fiat consumes. We base consumption with an average distance of 10,000 per year and a ‘normal’ driving style. Find your model listed below. It includes each variant from years 2015 to 2021. Fiat’s by model. All FIAT 500L models; All FIAT 500X models; All FIAT Ducato models; All FIAT Talento models; All Ford Kuga models ^{The amount of AdBlue used depends on the type of driving being done and the number of miles covered. Audi says its A4 saloon has a 12-litre AdBlue tank that gives it a range of approximately 6000 Bei den meisten Wohnmobilen leuchtet die Adblue Warnanzeige das erste Mal bei einer Reichweite zwischen 2.000 und 2.400 km auf, was ungefähr einem halb leeren Tank entspricht. Auch beim Fiat Ducato erscheint die Warnleuchte das erste Mal, sobald der Adblue Tank halb leer gefahren ist. Anschließend werden die Intervalle immer weiter verkürzt.} My best guess is that the warning will not activate until the level in the 15 litre tank has dropped to say 3 litres ( i.e. 20% of maximum ), in which case you would need 12 litres to top up. A top up of at least 5 litres is recommended. . 534 423 555 428 122 496 59 85

fiat ducato adblue tank size