Emissions systems: AdBlue and SCR
AdBlue warning on, a NOx sensor fault or the “no engine start” countdown running? An AdBlue delete (AdBlue removal) remap switches the AdBlue (SCR) system off in the engine software and clears the related fault codes. Done at your location across Liverpool, Manchester and the North West, from £285.
From £285
AdBlue delete remap
At Your Location
home, work or wherever the vehicle stopped
Cars and Vans
most modern diesels with AdBlue
Please Read First
DPF, EGR and AdBlue deletes are for off-road, competition, agricultural and export vehicles. Removing or disabling emissions equipment on a vehicle used on UK public roads breaks the Road Vehicles (Construction and Use) Regulations 1986, and any modification must be declared to your insurer. The decision is the owner's.
What the AdBlue system does
The AdBlue system, also called the selective catalytic reduction (SCR) system, cuts nitrogen oxide (NOx) emissions from a diesel engine. It injects a urea solution, AdBlue, into the hot exhaust, where it turns into ammonia and reacts with the NOx in the SCR catalyst, leaving nitrogen and water vapour.
NOx sensors before and after the catalyst tell the engine computer whether it is working. It is fitted to most Euro 5 and Euro 6 diesels: cars, vans, trucks and agricultural machinery. When any part of it reports a fault, the engine computer can reduce power and start a countdown to a no-start.
Signs of an AdBlue or NOx sensor fault
AdBlue delete remap
An AdBlue delete remap, also called an SCR delete, a NOx delete or a NOx sensor remap, changes the engine computer's software so it no longer runs the AdBlue (SCR) system or monitors the NOx sensors, and the related fault codes, the warning and the countdown are cleared. It is a software job, done with the vehicle where it is parked.
It is usually chosen to stop the problems these systems cause:
We do not diagnose, clean or repair AdBlue systems or NOx sensors: if you want the system repaired, a dealer or an AdBlue specialist is the right call. Our AdBlue work is the delete remap. We also do DPF delete and EGR delete remaps, and can do them in the same visit.
How a mobile visit works
1
Send The Details
Call or WhatsApp with the registration, where the vehicle is and what the dashboard shows.
2
Price and Slot
You get the price and the soonest slot before anything is booked.
3
We Come To You
At your home or work: we need the vehicle and a little space to work around it.
4
Done On Site
The work and the checks after it, explained in plain words.
The law, the MOT and insurance
An AdBlue delete is for vehicles that are not used on UK roads: off-road, competition, agricultural and export vehicles. A road vehicle has to keep the emissions equipment it was approved with, and removing or disabling it can bring a fine and invalidate the insurance. The details, with the sources, are in our guide to deletes, the MOT and the law.
Reviews are our customers' own words. The AdBlue work we do is the delete remap.
Where we work
We are based in Kirkby and come to you: your drive, your street or your work car park, across Merseyside, Greater Manchester and the towns between. Send your postcode and we will tell you the soonest slot.
All areas we coverLiverpool and Merseyside
Greater Manchester
Lancashire
Warrington and Halton
Guides
The AdBlue 'no engine start in X miles' warning explained: why the countdown starts, the usual causes, the checks you can do yourself and your options.
NOx sensor fault symptoms on a diesel: the warnings you will see, what the codes mean, why the fault often returns after a new sensor, and your options.
DPF, EGR and AdBlue deletes and the MOT: what UK law says, what the tester checks since 2014 and 2018, the fines, insurance, and where a delete is legal.
Questions
Anything else? Call 0330 043 8834 or send a WhatsApp with your registration.
It is the AdBlue system's countdown. When the system detects a fault it limits how far you can drive, and once the counter reaches zero the engine will not start again. It usually follows a NOx sensor fault, an AdBlue pump or injector problem, or crystallised AdBlue.
Another name for an AdBlue delete: the engine computer is remapped so it no longer runs the AdBlue (SCR) system or monitors the NOx sensors, and the related faults, warning and countdown are cleared.
Yes, as part of the AdBlue delete remap: the engine computer stops monitoring the NOx sensors along with the rest of the SCR system, and the NOx sensor fault codes are cleared.
An AdBlue or emissions warning on the dashboard, the engine management light, NOx sensor fault codes, AdBlue being used faster than usual, and on many vehicles the no-start countdown.
Only for off-road, competition, agricultural and export vehicles, as set out in the note at the top of this page.
A delete is for vehicles that are not used on UK roads, so the MOT is not the aim. A road vehicle has to keep its AdBlue (SCR) system, which is part of the emissions equipment it was approved with.
Yes. They are separate systems in the exhaust and in the engine software, so an AdBlue delete does not touch the DPF. If the DPF is blocked as well, it can be cleaned in the same visit.
Yes, for off-road, competition, agricultural and export vehicles. An AdBlue delete remap disables the AdBlue (SCR) system in the engine software, so there is no kit to fit. From £285, quoted from the registration.
No. We do not clean or repair NOx sensors or any part of the AdBlue system. The NOx sensor delete is a software change, done as part of the AdBlue delete remap for off-road use.
From £285. The exact price depends on the vehicle, so send the registration and we confirm it before booking.
Also mobile
Blocked DPF, warning light or limp mode. Diagnosed first, then a high-pressure chemical clean at your home or work.
From £195
Not sure the DPF can be saved? Find out whether it's melted, cracked or worth cleaning. We diagnose on site. If you decide to clean, we only charge for the cleaning.
From £85
EGR valve faults, carbon build-up and rough running, with the EGR mapped out of the engine software.
From £195
AdBlue delete remaps from £285, mobile across Liverpool, Manchester and the North West.
