“Brilliant service, my car is running better than ever with no pesky adblue issues. Would highly recommend”
Turtle
Seeing a UREA warning light or a restart countdown on your Citroën C4 dashboard? These common AdBlue system faults can stop your car from starting, but our mobile software solution can help. We travel to your location to provide a specialist AdBlue delete service. For a quote, please provide your vehicle registration and postcode.
We come to your home, workplace or another agreed safe location, subject to availability.
At a glance
A mobile appointment that fits around your day, with a vehicle suitability check and a quotation before you book.

Experienced technicians providing dedicated AdBlue software services for diesel cars and vans.
We come directly to your home or workplace at an agreed time that suits you.
Convenient mobile appointments throughout the week, subject to availability.
Dedicated AdBlue software services, with your vehicle checked before booking.
Confidence in our work, backed by our lifetime AdBlue software warranty.
If we cannot successfully complete the agreed service, our No Fix, No Fee policy applies.
From helpful advice to professional automotive services, genuine customer feedback says more than any sales pitch. Take a look at the experiences shared by customers and see why so many drivers put their trust in experienced automotive specialists.
Dashboard messages
This light often appears with an audible chime and indicates a fault within the AdBlue system. It may be due to a sensor, pump, or injector issue, even if the tank is full.
Your C4 will display a mileage countdown before the engine is prevented from restarting. This is a clear sign of a serious AdBlue system error that needs immediate attention.
A generic engine or AdBlue system fault message can be triggered by the same underlying issues. The system will often put the car into a reduced power or 'limp mode'.
Once the countdown timer reaches zero, your Citroën C4 will not start again after you switch it off. This is a standard feature designed to enforce emissions compliance.
Faults with the NOx sensors are a very common reason for AdBlue warnings on BlueHDi engines. Diagnostic trouble codes may point to a sensor, but the issue can be complex.
AdBlue Delete & Removal
Our mobile service begins with a full diagnostic scan to confirm the source of your Citroën C4's AdBlue fault. We then read the software from your engine's ECU and expertly modify it to disable the entire AdBlue system, a process also known as AdBlue Removal. This software-only solution stops the warning lights and countdown timers without touching any parts on the vehicle. Some newer, protected ECUs require specialist unlocking, which incurs an extra charge we confirm beforehand. We can also quote for optional extras such as performance remaps or DPF software solutions, all performed at your home or workplace.
Vehicle suitability
Does your Citroën C4 have AdBlue? It's a feature on the BlueHDi diesel models, but not every C4 diesel is equipped with it. For your Citroën C4, we check the registration, engine, build specification and ECU details rather than assuming fitment or service support from its age or badge. Because compatibility depends on the specific engine, year, and emissions standard, the simplest way to be sure is to let us check your vehicle's registration.
Found a fault code during a diagnostic scan? Enter it below to understand what it could mean, what warning signs to look out for and what information our mobile AdBlue specialists need to help you.
From AdBlue pressure faults to NOx sensor warnings and SCR system problems, explore common diagnostic codes in simple English.
These are shared diagnostic codes, not confirmed faults for every Citroen C4. Applicability depends on your vehicle and scan results.
8 common codes
Fault name
What it means
The system has reported insufficient reductant pressure. Diagnostic checks help establish the cause, rather than assuming a failed pump.
VIEW FAULT DETAILSFault name
What it means
SCR NOx reduction efficiency has been reported below its expected threshold. The full scan and sensor readings help identify possible causes.
VIEW FAULT DETAILSFault name
What it means
The code concerns SCR operation or monitoring. Read it alongside the full scan and vehicle-specific information.
VIEW FAULT DETAILSFault name
What it means
The code concerns a NOx sensor circuit or signal. It does not alone confirm which part needs attention.
VIEW FAULT DETAILSFault name
What it means
The code concerns a NOx sensor circuit or signal. It does not alone confirm which part needs attention.
VIEW FAULT DETAILSFault name
What it means
The code concerns a dosing or aftertreatment injector. Check the fitted system and full scan before assuming a cause.
VIEW FAULT DETAILSFault name
What it means
The system reports that the reductant level is too low. Check the actual fluid level and whether the reported level is accurate.
VIEW FAULT DETAILSFault name
What it means
The system has reported reductant quality performance. The code alone does not identify the cause.
VIEW FAULT DETAILSSend us your registration, postcode and diagnostic fault code. We'll check the details and explain the available mobile service options.
We cover much of Southern England and other supported areas across England. Enter your postcode, or browse our areas.
Tell us the registration, your postcode and what the dashboard shows.
We confirm suitability for your model and agree a quotation before any work.
Choose a time and a safe place to work, at home or at work, subject to availability.
The agreed software work is carried out at your location and checked before we leave.
Questions
A persistent warning may indicate a system fault, but the fluid level and diagnostic results also need checking. It could be a failed sensor, pump, or injector, which our AdBlue delete software solution is designed to resolve.
Yes. Our AdBlue software removal disables the system responsible for this countdown, preventing the non-start condition from occurring.
Some newer C4 models have protected engine computers (ECUs) that need specialist unlocking before we can apply our software solution. We can identify this and will always confirm any extra cost with you before beginning work.
The engine badge or model year alone does not confirm AdBlue fitment or software support for your Citroën C4. Send your registration so we can check the engine, emissions specification and ECU details before confirming suitability and a quote.
SCR stands for Selective Catalytic Reduction, the technical name for the AdBlue system. A NOx sensor measures exhaust gases, and a fault with this sensor is a common trigger for AdBlue warnings on the C4.
Absolutely. We are specialists, and we provide a lifetime warranty on our software (subject to terms) for your complete peace of mind.
The process is completed at your location and typically takes 1 to 2 hours, depending on your vehicle's specific ECU type and whether it requires unlocking.
Our mobile team covers London, much of Southern England and additional supported locations. Send us your postcode to confirm availability. Service is subject to technician availability.
The price depends on the specific engine and ECU fitted to your car. Contact us with your registration and postcode for a precise, no-obligation quote.
Yes. They are just two different names for our software-only service. We do not physically remove the AdBlue tank or any other components from your vehicle.
Yes. Our standard hours are Monday to Sunday, 8 AM to 8 PM. Emergency callouts are available 24 hours a day, 7 days a week, subject to location and availability. An additional emergency callout charge applies and is confirmed before dispatch.
Enter your registration, postcode and mobile number. We'll check your vehicle and reply with a quotation. You can add a photo of your dashboard warning in the WhatsApp chat.
Call or WhatsApp with the warning, miles remaining and where the vehicle is. Emergency callouts carry an additional charge, confirmed before dispatch.
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