“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
AdBlue Services
Tuning & Additional Services
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AdBlue Delete and Removal enquiries often begin with the same question: can poor AdBlue cause faults? Yes. Contaminated, diluted or degraded fluid can affect SCR performance and may trigger warnings or a restart countdown. However, those symptoms can also come from dosing, sensor or electrical faults. Send your registration and warning details before assuming the fluid is responsible.
24/7 Emergency Callouts Available
Emergency Mobile AdBlue Assistance. Additional emergency callout charge applies. Subject to availability.
01Understanding the service
AdBlue is a solution of nominally 32.5% high-purity urea by mass in demineralised water, made to ISO 22241 requirements. Added water, diesel, dirt or other contaminants can affect dosing and exhaust treatment; symptoms are not always immediate. Some vehicles measure fluid quality directly, while others infer a problem from SCR performance. White deposits alone do not prove the fluid is poor: normal AdBlue can leave crystals when water evaporates.
P20EE means SCR NOx Catalyst Efficiency Below Threshold, Bank 1. P207F means Reductant Quality Performance. Neither code proves that the AdBlue itself is defective. Possible causes include incorrect fluid concentration, inadequate dosing, NOx sensor faults, exhaust leaks or catalyst problems. Diagnosis should use the complete fault record and relevant live data. After a repair, some systems need specified tests, adaptation procedures or a successful monitoring cycle before warnings or countdowns clear.
SCR equipment and fault-handling procedures vary by model, engine and production date. Tank, pump, heater and NOx sensor faults can occur even when the correct fluid has been used. A heater fault does not by itself indicate degraded AdBlue, and tank deformation should not automatically be blamed on fluid quality. Send your registration and fault codes so the likely system can be identified and any remaining uncertainty checked diagnostically.
Use sealed AdBlue labelled as meeting ISO 22241, within its stated shelf life, and follow its storage instructions. Do not add water or unapproved additives. If diesel or another substance has entered the AdBlue tank, avoid starting the engine and obtain advice before further use. Topping up will not reliably correct contamination. Depending on what entered the tank and whether it has circulated, draining, cleaning and inspection may be required; replacement parts should be based on the findings.
A proper assessment separates fluid-quality problems from hardware and electrical faults. Software changes that disable SCR operation do not restore fluid quality or reverse component damage. Send your registration, postcode, warning photo and diagnostic codes to discuss appropriate next steps and check whether a mobile visit is available.
From booking to completion, our experienced mobile technicians make the process straightforward.
We confirm your vehicle, location, service and appointment.
On the day, your technician calls with an estimated arrival time.
We connect diagnostic equipment, check the vehicle and identify relevant faults.
We read the original ECU software, prepare the AdBlue modification and apply it.
Final diagnostics, applicable fault-code resets and checks to confirm the agreed work is complete.
We take payment, provide a receipt and explain the applicable software warranty.
02Why choose Fix My AdBlue
Customer questions
Still unsure? Send us your registration and a photo of the warning on WhatsApp.
Ask on WhatsAppAdBlue Delete refers to software changes intended to disable SCR dosing and associated monitoring. It does not remove contaminated fluid or repair damaged hardware, and results depend on the vehicle and software. Send your registration and fault details so the fitted system can be checked.
AdBlue Removal is often used to mean disabling SCR operation in software, rather than physically removing the tank or other components. Ask what any proposed work includes; it should not be confused with draining contaminated fluid.
AdBlue Repair aims to restore SCR operation by identifying and correcting the fault. That might involve replacing contaminated fluid, cleaning or replacing affected parts, repairing wiring or following a manufacturer software procedure. Delete changes system operation rather than repairing the underlying fault.
AdBlue Fix is a general term for resolving an AdBlue-related problem, not a specific technical procedure. A suitable fix depends on diagnosis: poor fluid, low dosing pressure, wiring faults and inaccurate sensor readings can produce similar warnings.
Send your registration, current postcode, mileage and the exact warning message, including any restart countdown. Your registration helps identify the likely vehicle specification, while the postcode lets us check mobile availability. Diagnostic identification may still be needed to confirm the fitted ECU and software.
Yes. Send a clear dashboard photo and any complete diagnostic report, including code suffixes if available. These help with initial assessment but do not establish the cause on their own. Tell us whether the engine still starts and when the warning first appeared.
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.
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