When the AdBlue warning light appears, van owners are often given two options: a reset or a full delete. While both can clear warnings and get you moving again, they are very different services. This guide explains the difference between AdBlue reset and delete, and when each one makes sense in 2025.
What Is an AdBlue Reset?
An AdBlue reset is a software action that clears current fault codes and warning lights. It’s useful if:
- The AdBlue tank has been topped up but the system hasn’t recognised it.
- A countdown like “No start in 500 miles” needs clearing (read more here).
- Minor sensor faults have been repaired and the ECU needs refreshing.
A reset is often the quickest way to get a van started again after running low on AdBlue or when the system locks up unexpectedly. Our mobile service can carry this out roadside in under an hour.
What Is an AdBlue Delete?
An AdBlue delete is a permanent software change to the ECU that disables the SCR system completely. The vehicle will no longer inject AdBlue, and all related fault codes and countdowns are removed. This is different from a reset, which only clears existing warnings.
The delete process is done using specialist tools like Autotuner and CMD Flash. It’s carried out without cutting wires or modifying the tank — everything is handled through the ECU software.
When to Choose a Reset
AdBlue resets are best for drivers who:
- Plan to keep the van road-legal for UK use and MOT compliance.
- Have occasional AdBlue faults but generally want to keep the system intact.
- Need a quick temporary fix to get back on the road without major changes.
For example, Peugeot and Citroën vans often throw temporary tank or pressure codes that can be cleared with a reset. If the problem doesn’t return, no delete is needed.
When to Choose a Delete
An AdBlue delete is the better choice if:
- The system suffers repeat failures despite repairs.
- Expensive parts like NOx sensors or pumps keep failing (pump vs heater faults explained).
- The vehicle is being exported, used off-road, or for motorsport purposes.
Deletes save money long-term by removing the need for AdBlue top-ups and costly replacement sensors. Many Mercedes Sprinter and Vauxhall Movano owners in Stoke choose this option after repeated breakdowns.
Is It Legal?
AdBlue deletes are strictly for off-road, export, or motorsport vehicles. For UK road use, resets and repairs are the legal route. We’re clear with every customer about these rules and also offer AdBlue repair options to keep vans compliant.
For more details, you can read the latest Euro 7 AdBlue rules to see how new emissions standards affect SCR systems.
Which Option Is Right for You?
If your van is showing a countdown or stuck in limp mode, a reset may be all that’s needed. But if you’re facing constant breakdowns and high repair bills, a delete could be the more practical solution. Either way, we’ll explain the choices clearly so you can decide what works for your fleet.
Book an AdBlue Reset or Delete in Stoke
Need help today? Call 07503 134 362 or email info@adbluespecialist.co.uk. We cover Stoke-on-Trent, Staffordshire, and nearby towns with same-day mobile appointments available most weeks.
