The owner of this 2018 Renault Master 2.3 dCi reported that the Check Engine light came on regularly. They also said the battery nearly discharged after the vehicle had been parked for several days. The video does not establish that the battery drain was caused by the AdBlue system.

Diagnostics found a fault related to the AdBlue dosing module. Given the expected repair and parts costs, the owner chose to have the AdBlue/SCR functions disabled in the engine control unit software. The ECU file was read, modified and written back.

After programming, the engine was started and the vehicle was checked. The AdBlue warnings were no longer displayed, and a diagnostic scan showed no related faults. A small AdBlue remainder was still shown on the dashboard; the video does not document long-term monitoring after the changes.