Screenwash in AdBlue Tank Decontamination Services in Essex
It is incredibly easy to mistake the blue AdBlue cap under your bonnet or inside your fuel filler flap for your windscreen washer fluid reservoir.
If you have poured screenwash into your AdBlue tank, do not turn on the ignition.
Screenwash contains water, alcohol, and aggressive chemical detergents.
If this mixture is drawn into your vehicle’s Selective Catalytic Reduction (SCR) system, it will immediately contaminate the delicate AdBlue quality sensors, coat the heater elements, and ruin the expensive catalyst block.
This leads to a complete vehicle shutdown, permanent countdown "no-start" dashboard errors, and thousands of pounds in main-dealer replacement costs.
Misfuelled Car Fixer Essex provides a specialist, 24/7 mobile SCR decontamination service.
Our mobile units travel fully equipped to completely extract the contaminated fluid and protect your exhaust system on your driveway, at work, or on a safe petrol station forecourt.
Our Specialist Technical Process
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The Danger: Standard screenwash chemicals completely destroy the precise chemical balance ($32.5\%$ pure urea, $67.5\%$ deionized water) that your exhaust sensors expect. Once the engine runs, the detergents crystalize and burn onto the catalytic exhaust components, triggering immediate emissions faults that lock the ECU.
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Our Fix: We completely siphon out the contaminated fluid from the AdBlue reservoir using dedicated extraction gear. Next, we flush the tank with pure, laboratory-grade deionized water to neutralize chemical residues, refill it with fresh, ISO-compliant AdBlue, and perform a digital diagnostic reset to clear any active engine fault codes on-site.
🛑 Safety Notice: Please note that for safety reasons, we do not provide extraction services on active motorways or high-speed dual carriageways. If your vehicle has broken down on a major highway, it must be safely recovered to a local petrol station forecourt, side street, or domestic property first before our mobile team can safely execute a full system drain.
Our independent mobile recovery units span the entire county, providing rapid assistance across Chelmsford, Colchester, Southend-on-Sea, Basildon, Brentwood, Braintree, and Wickford. We'll have your SCR system safely decontaminated, refilled, and reset in under an hour.