These instructions apply to the Nissan NV300 2016-2021.
For other models, please choose your vehicle here.
An AdBlue message on the Nissan NV300 (2016–2021) isn’t a breakdown — it’s a countdown telling you how far you can go before the diesel won’t restart, and it clears itself once you refill. No garage, no ‘AdBlue delete’.
The NV300 was Nissan’s take on the Renault Trafic III under the Renault-Nissan alliance, sold from 2016 to 2021, after which Nissan revived the ‘Primastar’ name for the facelifted version.
Reading the Countdown
AdBlue is an emissions fluid in a separate tank (about 22–25 litres). As it empties the dash escalates: ‘top up before 2400 km’, then ‘before 1200 km’, then a repeating ‘XXX miles lockout’, and finally ‘0 miles lockout’ — at which point the engine won’t start until you refill. Top up at the first message and you never reach the lockout; do it before very cold nights, as AdBlue freezes below about −10°C.
Top Up and Clear the Warning
- Turn the engine and ignition fully off (properly off on stop-start vans).
- Open the AdBlue filler — separate from the diesel: open the front left-hand door to reach the flap, then undo the blue cap.
- Add several litres of AdBlue, not a splash, so the level sensor registers it. Wipe spills — it marks paint and trim.
- Refit the cap, start the engine and wait about 10 seconds stationary.
- Drive normally — the warning clears once the system registers the top-up, sometimes only after a few minutes.
Already at Zero?
Refill the same way — add enough that the tank clearly reads a level, then switch on. After a proper fill the van starts again and the countdown resets, with no dealer tool for a simple empty tank. If it still won’t start after a good refill, that’s an SCR fault (sensor or pump), not the fluid level, and needs a diagnostic read.
Skip the ‘AdBlue Delete’
Refilling costs a few pounds. Deleting or remapping the AdBlue system is illegal for road use in the UK and EU, fails the MOT emissions test, and shows on later diagnostics.
Frequently Asked Questions
What’s the difference between the Nissan NV300 and the Primastar?
They’re the same van at different points in time: the NV300 (2016–2021) is the Trafic-based model these guides cover, and Nissan brought back the ‘Primastar’ name in 2021 for the facelifted version — same platform, revised front end.
How do I reset the AdBlue warning on a Nissan NV300?
You don’t reset it by hand — add a few litres, start the engine, wait about 10 seconds, then drive; the van registers the top-up and clears the message itself.
Where does the AdBlue go?
In its own filler behind the front left-hand door, not the diesel tank — undo the blue cap.
Will it still start with the AdBlue light on?
Yes, until the ‘0 miles’ lockout — then it won’t restart until you refill.
Is it the same as a Renault Trafic?
Yes — as Nissan’s version of the Renault Trafic it shares the same AdBlue system and self-clearing top-up, as do the Renault Trafic, Fiat Talento and Vauxhall/Opel Vivaro.
If a warning light or fault code appeared, look it up on autodtcs.com.
Independent guide — not affiliated with Nissan. Always follow your official service manual and safety precautions. Read our full disclaimer.