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Fix My AdBlue

Fault Code Directory

Our AdBlue Fault Code Directory helps you identify specific issues with your vehicle's Selective Catalytic Reduction (SCR) system. If you have a dashboard warning or a countdown until your engine will not restart, identifying the precise error code is the first step towards an effective AdBlue solution.

  • Mobile, we come to you
  • Experienced technicians
  • Quote on WhatsApp

24/7 Emergency Callouts Available

Emergency Mobile AdBlue Assistance. Additional emergency callout charge applies. Subject to availability.

  • Same-Day Appointments Subject to Availability
  • Next-Day Appointments Subject to Availability
  • Mobile Attendance at Home or Work

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01Understanding the service

Understanding AdBlue Delete and Fault Indicators

AdBlue Delete is the most comprehensive way to resolve persistent system failures that lead to 'No Start' conditions. When your vehicle logs codes such as P20E8 (reductant pressure too low) or P20EE (SCR catalyst efficiency below threshold), the ECU often triggers a countdown. An AdBlue Delete involves recalibrating the engine management software so the vehicle no longer requires AdBlue fluid or relies on the complex sensor network. This process effectively bypasses the entire SCR system, ensuring that faulty injectors, heaters, or NOx sensors no longer interfere with your vehicle's drivability. We can provide a mobile service to address these codes at your location.

  • P20EE: SCR NOx Catalyst Efficiency Below Threshold
  • P204F: Reductant System Performance
  • P207F: Reductant Quality Performance
  • P208E: Reductant Injector Stuck Closed

Expert AdBlue Removal for Persistent Codes

AdBlue Removal is a popular choice for motorists facing recurring expenses from faulty hardware. Common issues on many versions of modern diesel engines include the P2BAD code, which indicates a NOx exceedance, or P20BC relating to the reductant heater. This service is particularly beneficial if you have already attempted minor repairs only for the warning light to return. We recommend sending your vehicle registration and the specific fault codes via WhatsApp so we can confirm the exact software version and hardware configuration of your vehicle before arrival.

    Professional AdBlue Repair and Diagnosis

    While some drivers opt for a full bypass, an AdBlue Repair may involve replacing specific components like the NOx sensor or the AdBlue pump. If your diagnostic tool shows U029E (lost communication with NOx sensor B) or U010E (lost communication with reductant control module), it suggests a wiring or hardware failure. Our technicians specialise in diagnosing these complex communication errors. On many versions of Euro 6 engines, these faults can be intermittent, making a professional assessment vital. We carry the latest diagnostic equipment to your home or workplace to ensure the repair is targeted and effective, preventing unnecessary spend on the wrong parts.

      Mobile AdBlue Fix for Countdown Timers

      When your dashboard displays a 'Restricted Performance' message or a mileage countdown, you need an AdBlue Fix that works immediately. We provide a mobile service that comes to you to clear these codes and implement a lasting solution. Whether it is a software patch or a component replacement, our goal is to get your vehicle back to full power without the threat of a non-start situation. Common codes that we fix daily include P203F (reductant level too low - even when full) and P21C5. Please ensure you have your V5 or registration number ready so we can verify the specific engine variant and SCR generation used in your vehicle.

        Common Error Codes by Manufacturer

        Different manufacturers use varying protocols for their SCR systems, though many fault codes are standardised. On certain models, you may see 'AdBlue System Failure' accompanied by codes like P20EE or P204F. Some brands also use unique codes for specific failures. Our mobile technicians can assist with the nuances of your vehicle's software and carry the specific tools required for its ECU. By identifying the code early, you can avoid the inconvenience of a total engine lockout.

        • Volkswagen/Audi: P20E8, P205C
        • Mercedes-Benz: P203F, P20BC
        • Ford/PSA: P20EE, P208E
        • BMW: 804113, 804115
        How it works

        What Happens When We Visit?

        From booking to completion, our experienced mobile technicians make the process straightforward.

        1. 1

          Book Your Appointment

          We confirm your vehicle, location, service and appointment.

        2. 2

          Technician Calls With ETA

          On the day, your technician calls with an estimated arrival time.

        3. 3

          We Arrive & Diagnose

          We connect diagnostic equipment, check the vehicle and identify relevant faults.

        4. 4

          ECU Software Work

          We read the original ECU software, prepare the AdBlue modification and apply it.

        5. 5

          Final Checks & Resets

          Final diagnostics, applicable fault-code resets and checks to confirm the agreed work is complete.

        6. 6

          Payment & Receipt

          We take payment, provide a receipt and explain the applicable software warranty.

        02Why choose Fix My AdBlue

        • Operating Since 2012
        • Experienced Technicians
        • 5.0★ Genuine Google Reviews290+ Verified Google Reviews
        • Nationwide Mobile Service Across England
        • No Fix, No FeeSubject to terms
        • Lifetime Software WarrantyCovers the software we install
        • 24/7 Emergency Callouts AvailableAdditional emergency callout charge applies

        Customer questions

        Questions customers ask us

        Still unsure? Send us your registration and a photo of the warning on WhatsApp.

        Ask on WhatsApp
        What is AdBlue Delete?

        AdBlue Delete is a software-based service where the vehicle's ECU is reprogrammed to stop monitoring the SCR system. This eliminates the need for AdBlue fluid and prevents the car from entering 'limp mode' or 'no start' states due to sensor or pump failures. It is a long-term alternative for recurring AdBlue issues.

        What is AdBlue Removal?

        AdBlue Removal refers to the process of electronically disabling the AdBlue system. By removing the system's influence over the engine management, the vehicle can operate without the SCR components functioning. This is frequently chosen by drivers to avoid the high costs of replacing pumps, tanks, and NOx sensors.

        What is the difference between AdBlue Delete and AdBlue Repair?

        AdBlue Repair involves replacing faulty components like sensors or pumps to restore the system to original working order. AdBlue Delete is a software recalibration that bypasses the system entirely. Repair maintains the system's function, while Delete ensures the system can no longer cause vehicle breakdowns or fault codes.

        What is an AdBlue Fix?

        An AdBlue Fix is a general term for any service that resolves an SCR system fault. This could range from a simple sensor replacement (Repair) to a full software bypass (Delete). Our technicians assess the fault codes present to determine the most effective fix for your specific vehicle and budget.

        What vehicle and postcode information do you need for a quote?

        To provide an accurate quote, we require your full vehicle registration number so we can identify the specific engine and ECU type. We also need your current postcode to ensure we can dispatch a mobile technician to your exact location at home, work, or the roadside.

        Can I send my warning light photo on WhatsApp?

        Yes, we encourage customers to send photos of their dashboard warning lights and any diagnostic fault codes via WhatsApp. This helps our specialist technicians identify the likely cause of the AdBlue failure before we arrive, ensuring we are fully prepared to fix the issue on-site.

        Do you offer 24/7 emergency callouts?

        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.

        Related

        Search AdBlue Fault Codes

        These are shared codes used by many manufacturers. The cause varies by vehicle, so we confirm the fault before quoting.

        Warning topics: UREA and AdBlue warning lights · restart countdowns

        290+ Verified Google Reviews

        Featured 5-Star Customer Reviews

        Real reviews from real Fix My AdBlue customers, taken straight from Google.

        5.0 on Google

        290+ Verified Google Reviews

        • “Friendly and efficient service, sorted out my adblue issue and did a stage 1 remap on my range rover. Would use again”

          Dec Halford

          3 Oct 2026

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        • “Happy with the remap done on my car to fix the adblue fault. The engineer was polite and efficient. I would highly recommend the company.”

          Michael Carrington

          2 Oct 2026

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        • “These Adblu guys were fantastic! They attended my vehicle and got rid of this issue of adblu! Great service and fabulous communication! Will recommend this company!”

          Muhammad Nasir Uddin

          1 Oct 2026

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        • “Excellent job, arrived exactly when he said he would. Cured my adblue problem with ease ,also remaped”

          norman cass

          1 Oct 2026

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        • “Thank you so much for sorting my adblue fault And remap much appreciated for the quick response And did the job outside my door No travelling to get to you You came to me And The pleasant Technician who did the job thanks so much very happy Customer”

          john Vaughan

          1 Oct 2026

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        • “Really happy with the remap done on my car, polite, efficient service and would highly recommended to anyone. Fixed my Adblue problem and cleared all my lights on the dashboard. My car is now quicker and more fuel efficient, I’m more than happy and very grateful for the service I received.”

          Sean Phillips

          30 Sept 2026

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        • “Excellent service from start to finish. I had an AdBlue fault with my vehicle and they diagnosed and fixed the problem quickly and professionally. Very knowledgeable, efficient and friendly service, and they kept me informed throughout the process. The vehicle is now running perfectly again. I’m really impressed with the service and would highly recommend AdBlue Service to anyone having AdBlue or related vehicle problems. Great job and thank you! 👏🚗”

          Mauricio Carturan

          27 Sept 2026

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        • “Very quick and efficient as well as cost friendly. Good availability as well, Had an adblue fault so couldn't drive, came to my house and solved the issue as well as remapping the car. Thumbs up for quick communication.”

          Ramiz Abdullah

          25 Sept 2026

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        • “Spent a few hundred pounds on diagnostics for other garages to say it cannot be fixed quickly or cheaply but then I found Adblue Fix and they came out to me the following morning and sorted the issues within 20 minutes. I highly recommend them and the life time warranty was a great addition.”

          Sam B

          11 Sept 2026

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        • “Quick, on time, honest about pros and cons of adblue remap, and professional. And, of course, they came to me. Can't really ask for more than that”

          Daniel “Dan” Rosewell

          2 Sept 2026

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        • “This company fixed my ad blue system fault and remapped my car too. Very quick and efficient service totally recommend from a very happy customer thanks guys”

          Craig Savory

          31 Aug 2026

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        • “Fixed my adblue issues in less than 30 mins, saved me thousands!”

          Cameron Robinson

          27 Aug 2026

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        • “Great, efficient service, solved my adblue issues. Would highly recommend”

          Debbie chalmers

          27 Aug 2026

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        • “I would highly recommend E.G. to anyone with issues with the adblue system in there vehicle they were absolutely brilliant and the technician went above and beyond to solve my issue, they get 10 out 10 from me”

          Johnny brown

          25 Aug 2026

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        • “Very satisfied with work on my Citroen berlingo Adblue fix would highly recommend to anyone very polite thank you”

          Sean Cummins

          21 Aug 2026

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        • “Lost count of the amount of Adblue issues I’ve had on my van. Another company had tried previously to fix it but weren’t able to. Tried again with these guys and it was sorted the same day I called! Highly recommended!”

          Robert Lamond

          20 Aug 2026

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        • “Brilliant service from some really great people, my van went from a workhorse to a rocket, I’m so impressed with the difference it’s made, adblue problems are all now gone and the limiter removal has changed my life 😂”

          paul beer

          20 Aug 2026

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        • “Very happy with my adblue removal recommendation is very high from me to people and a hassle free service”

          Adam Rawlings

          19 Aug 2026

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        • “Fixed the adblue fault on my van. The light come on a Friday and unfortunately my van had MOT on the monday. These guys come out on Sunday and fixed my adblue issue so I was still able to get to my MOT on the Monday. Really great service, the guy that come out was polite and efficient. Can't fault these guys at all, I highly recommend.”

          Sam Geddes

          19 Aug 2026

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        • “I was having issues with the Adblue system and was quoted a lot of money elsewhere to get it. I found these who did it for a fraction of the price and they did a great job. 5* all day long”

          mimmo fiata

          26 Jul 2026

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        1 / 20
        WhatsApp Quote · Fault Code Directory

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