At ELH Custom Remapping, we work with a wide range of commercial vehicles experiencing common performance issues – and one we see time and time again is the dreaded AdBlue fault. A recent example is this 2021 Renault Trafic, which came in with persistent AdBlue system problems and left with both a full fix and a serious power upgrade.
The Problem: AdBlue Warning & Limited Performance
This Renault Trafic was showing the all-too-familiar AdBlue fault on the dash, a common issue across many vans in this category. These faults can lead to engine warning lights, restricted starting, limp mode, and eventually full immobilisation – not ideal for a vehicle relied on for daily work and business.
The Fix: AdBlue Solution
We carried out our tried-and-tested AdBlue solution, safely disabling the faulty system at ECU level. This eliminates the issue permanently without affecting the van’s normal driving functionality. No more warning lights, no limp mode, and no more expensive dealership diagnostics.
The Bonus: Custom Performance Remap
While it was with us, the customer also opted for a performance upgrade – and the results speak for themselves:
🔧 Power: 145bhp ⏩ 200bhp
🔧 Torque: 340Nm ⏩ 420Nm
This custom remap gives the Trafic much more usable power, smoother throttle response, and better pull under load – ideal for vans carrying tools, towing, or covering long motorway journeys.
Results: Power, Reliability & Peace of Mind
With the AdBlue system now sorted and a performance map tailored to the engine’s capabilities, this Renault Trafic is not just fixed – it’s performing better than ever. The owner can now drive with confidence, knowing their van is fault-free, stronger on the road, and more efficient under pressure.
AdBlue fault or just want more from your van?
We specialise in remapping and fault code solutions for commercial vehicles across all makes and models. Fill in the contact form below and we’ll get you booked in.