Is your Citroën C4 showing AdBlue warnings, NOx sensor faults, or the dreaded SCR system error? You’re not alone — many C4 owners across the UK face repeated AdBlue problems that lead to limp mode, high repair costs, and stressful dealer visits.
At Adblue Fix, we offer a permanent Citroën C4 AdBlue delete and NOx sensor removal service. With more than 10 years of experience, 500+ five-star reviews, and both a Slough workshop and mobile service across England, we are the trusted specialists for AdBlue solutions in the UK.
Why C4 Owners Choose AdBlue Delete
The Citroën C4 is a comfortable and efficient family car, but its AdBlue (SCR) system is one of its weak points. Instead of providing smooth running, it often leaves drivers stranded or stuck in limp mode.
Common Citroën C4 AdBlue issues include:
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Dashboard warning: “No engine start in 700 miles – AdBlue fault.”
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Frequent NOx sensor failures.
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Fault codes such as P20E8, P207F, P229F.
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Expensive dealer repair quotes.
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Cars forced into limp mode, losing power on the road.
Our AdBlue delete service gives you a permanent solution:
✅ No more AdBlue refills.
✅ No more limp mode.
✅ No more fault codes or dashboard warnings.
Citroën C4 AdBlue & NOx Fault Codes We Remove
The most frequent codes we permanently delete for Citroën C4 drivers include:
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P20E8 – Reductant Pressure Too Low
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P207F – Reductant Quality Performance
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P229F – NOx Sensor 2 Bank 1 Performance
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P20EE – SCR NOx Catalyst Efficiency Below Threshold
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U029D – Lost Communication with NOx Sensor
After our ECU reprogramming, these codes will not return.
Our Process – Simple, Fast & Permanent
We’ve refined our process to make it easy and stress-free:
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Diagnostic Check – We confirm the fault codes on your ECU.
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ECU Reprogramming – Our engineers electronically delete the AdBlue and NOx system.
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Final Testing – We ensure your C4 runs perfectly with no limp mode, no warnings, and no AdBlue dependency.
⏱ The process takes around 1 hour.
🚗 Available at our Slough workshop or through our mobile service across England.
Areas We Cover
Our main base is in Slough, but our mobile AdBlue delete service means we can reach customers across most of England. Locally, we cover:
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Windsor
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Maidenhead
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Reading
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High Wycombe
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Uxbridge
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Heathrow
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Bracknell
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Egham
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Hounslow
We also cover the majority of England via mobile service.
Why Citroën Drivers Trust Adblue Fix
⭐ 500+ verified five-star reviews
🛠 Over 10 years’ experience with Citroën & Peugeot cars
🚐 Mobile service across most of England
🏭 Slough workshop for local customers
💻 Permanent ECU software fix (not cheap plug-in devices)
🏆 Trusted by private drivers and trade clients
When it comes to Citroën C4 AdBlue delete & NOx sensor removal, we are the UK’s industry leaders.
Frequently Asked Questions
How long does a Citroën C4 AdBlue delete take?
Around 1 hour.
Will my C4 pass MOT with an AdBlue delete?
Yes – MOT testers do not check AdBlue fluid. Our solution ensures no dashboard warnings or limp mode.
What if my NOx sensor has already failed?
That’s fine – our ECU software removes the NOx system completely.
Do you offer a mobile service?
Yes – we cover most of England, or you can visit our Slough workshop.
Book Your Citroën C4 AdBlue Delete Today
Don’t let AdBlue faults spoil your driving experience. Choose Adblue Fix for a permanent solution trusted by Citroën C4 drivers nationwide.
📞 Call us today on 01753 439130 to book your Citroën C4 AdBlue delete or NOx sensor removal.
📍 Visit our Slough workshop or book our mobile service anywhere in England.
With over a decade of experience and hundreds of five-star reviews, we are the UK’s most trusted name for Citroën C4 AdBlue delete services.