If your Audi A4 is showing AdBlue system faults, NOx sensor errors, or constantly flashing SCR warnings, you’ve probably already discovered how expensive and frustrating the repairs can be.
At Adblue Fix, we provide a permanent AdBlue delete and NOx sensor removal solution for the Audi A4. With over 10 years of experience, more than 500 five-star reviews online, and both a mobile service across most of England as well as our workshop in Slough, we are the trusted name for AdBlue solutions in the UK.
Why Audi A4 Owners Choose AdBlue Delete
The Audi A4 is an excellent car, but the AdBlue system (SCR system) is notorious for faults. Instead of helping, it often leaves owners stranded or stuck in limp mode.
Common Audi A4 AdBlue issues include:
- Dashboard warnings: “No engine start in 650 miles – AdBlue fault.”
- Repeated NOx sensor failures (even after replacements).
- AdBlue fault codes such as P20E8, P207F, P229F.
- High repair costs quoted by main dealers.
- Cars forced into limp mode, losing power on the road.
Our AdBlue delete service removes this system electronically, giving you a permanent solution:
✅ No more AdBlue refills.
✅ No more fault codes.
✅ No more limp mode.
Common Audi A4 AdBlue & NOx Fault Codes
Here are the most frequent codes we fix for Audi A4 drivers:
- P20E8 – Reductant Pressure Too Low
- P207F – Reductant Quality Performance
- P229F – NOx Sensor 2 Bank 1 Performance
- P20EE – SCR NOx Catalyst Efficiency Below Threshold
- U029D – Lost Communication with NOx Sensor
If these appear on your scanner, our AdBlue delete and NOx delete software solution will permanently remove them.
Our Process – Fast, Professional, Permanent
At Adblue Fix, we’ve refined our process to make it quick and stress-free:
- Diagnostic Check – We scan your ECU and confirm the fault codes.
- ECU Reprogramming – Our software engineers remove the AdBlue and NOx system from your ECU.
- Testing – We verify that the car runs perfectly, with no warnings, no limp mode, and no dependency on AdBlue.
⏱ The process takes around 1 hour.
🚗 Available at our Slough workshop or via our mobile service across England.
Areas We Cover
Our main workshop is in Slough, but our mobile AdBlue delete service means we can travel to you anywhere in England. Locally, we cover:
- Windsor
- Maidenhead
- Reading
- High Wycombe
- Uxbridge
- Heathrow
- Bracknell
- Egham
- Hounslow
For customers further afield, we cover the majority of England.
Why Choose Adblue Fix?
With so many companies offering AdBlue deletes, why do Audi A4 owners choose us?
- ⭐ Over 500 verified 5-star reviews
- 🛠 10+ years of experience with Audi systems
- 🚙 Mobile service across most of England
- 🏭 Workshop in Slough for local customers
- 💻 Permanent ECU solution (not cheap plug-in boxes)
- 🏆 Trusted by both private drivers and trade clients
When it comes to Audi A4 AdBlue delete & NOx sensor removal, we are the industry leaders.
Frequently Asked Questions
How long does an Audi A4 AdBlue delete take?
Around 1 hour from start to finish.
Will my car pass MOT with an AdBlue delete?
MOT testers do not check AdBlue levels directly. Our solution ensures your car runs smoothly with no warning lights.
What if my NOx sensor is already faulty?
Our software removes the NOx system completely, meaning no more NOx-related fault codes or limp mode.
Do you offer a mobile service?
Yes, we cover the majority of England with our mobile service, or you can visit our Slough workshop.
Book Your Audi A4 AdBlue Delete Today
Stop wasting money on endless AdBlue repairs. Choose Adblue Fix for a permanent solution trusted by Audi drivers nationwide.
📞 Call us today on 01753 439130 to book your Audi A4 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 5-star reviews, we are the UK’s trusted choice for Audi A4 AdBlue delete services.