Renault Master 3 Euro 6 SID321 AdBlue SCR Removal Emulator
Purpose-built for the Renault Master 3 Euro 6 SID321 ECU, this AdBlue SCR removal emulator permanently clears NOx sensor faults and AdBlue warnings, removing the refilling requirement in one plug-and-play installation.
Euro 6 emission regulations place strict demands on the SID321 ECU fitted to the Renault Master 3, and even well-maintained vans can be tripped up by NOx sensor errors, AdBlue (DEF) low-level alerts and limp mode restrictions that bring a working day to an abrupt halt. The Renault Master 3 Euro 6 SID321 AdBlue (SCR) Removal Emulator is a purpose-built CAN-bus plug-in device that targets the SCR loop exclusively — ideal for operators whose vehicle has no DPF issues — permanently eliminating every AdBlue and NOx-related warning so the van runs at full engine output with no fluid top-up requirement.
How Does It Work?
The emulator connects to the original AdBlue circuit socket on the SID321 ECU without cutting or soldering a single wire. Once active, it continuously sends valid AdBlue level readings, fluid quality values and NOx conversion data directly to the engine brain via the CAN-bus. The Euro 6 software reads a fully compliant SCR loop, raises no faults and applies no restrictions.
Frequently Asked Questions
Is this emulator fully compatible with the Euro 6 Renault Master 3?
Yes. The device was developed specifically for the Euro 6 SID321 ECU version of the Renault Master 3 and simulates only the AdBlue/SCR system — not the DPF.
Does installation require any wiring to be cut or soldered?
No. The emulator is entirely plug-and-play. It slots into the existing factory connector with no wire cutting or soldering at any stage.
Will existing fault codes be cleared after the emulator is fitted?
We recommend clearing any stored fault codes with an OBD2 scanner immediately after fitting. Once cleared, the system will not generate new emission faults.
What is the difference between the SID321 SCR-only emulator and the SID321 SCR+DPF emulator?
This device simulates the AdBlue/SCR system only and is the right choice for Master 3 operators who have no DPF-related issues. If you are experiencing both SCR and DPF faults, choose the combined SCR+DPF version instead.
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.
