Citroën C4 MD1CS003 AdBlue SCR Removal Emulator
A plug-and-play hardware emulator that permanently clears all AdBlue and SCR fault codes on the Citroën C4 MD1CS003 ECU, ending dashboard warnings and engine power restrictions without modifying the original wiring.
The Citroën C4 is a compact family car built on the MD1CS003 ECU platform, with an SCR system that continuously monitors AdBlue (DEF) fluid quality and NOx output. As mileage accumulates, the AdBlue pump, NOx sensors or SCR catalyst can develop faults that manifest as persistent dashboard warnings and progressive engine power restriction. The Citroën C4 MD1CS003 AdBlue (SCR) Removal Emulator is a hardware device that simulates the SCR system's complete electronic output — eliminating every related fault code and restoring the C4 to full, unrestricted performance.
How Does It Work?
The device plugs directly into the Citroën C4's original AdBlue connection socket — no wires are cut and no soldering is involved. The internal microcontroller produces AdBlue fill level, fluid quality, pump status and NOx sensor signals in the exact format the MD1CS003 ECU's communication protocol demands. The ECU reads the incoming data as genuine, reports the system as fault-free and issues neither warning lamps nor power restrictions.
Frequently Asked Questions
How long does installation on the Citroën C4 take?
Installation consists of plugging the emulator into the original AdBlue connector and is typically completed in a few minutes. No specialist tools or technical expertise are required.
Does the vehicle require a software update or ECU remap after fitting?
No. The emulator is a standalone hardware device. There is no ECU software modification, reprogramming or calibration required.
What are the warranty terms?
All our products carry a 2-year warranty. Full details are available on our returns and warranty policy page.
Is shipping free?
Yes, shipping is free on all orders, with fast delivery across Türkiye and worldwide.
Supported Models
This emulator is compatible with the following models that share the same ECU platform:
Installation Video
Step-by-step installation — plug-and-play with no cutting or soldering. About 10 minutes.
