adblue Renault Magnum DXi : Loss of engine power and torque

What to do in the event of an adblue failure on a Renault Magnum DXi 520, under the Euro 5 standard? First of all, you should be aware of the symptoms when your Magnum 520DXi exhaust aftertreatment system considerably reduces engine torque and power. We call this the degraded mode. It's triggered as soon as an inconsistency is detected in the exhaust management system.

Most common faults on Renault Magnum Euro 5

The most common Adblue problems are: seized injector, faulty NOx sensor, mechanical or electronic defect in the pump and the ECU connected to the pump. A blocked, oxidized or destroyed SCR catalytic converter. All these faults mean that the truck goes into downgraded mode, with restricted power.

Virtualizing the system during a Renault Magnum adblue breakdown

Virtualizing the adblue system for Renault Euro 5 trucks intended for export enables simulation of the various variables involved in operating the adblue system, such as AdBlue level, emulation of pump operation and virtualization of adblue injection. The virtualization system on Magnum (equipped with Volvo DTi13 engines) also works on other Renault Premium vehicles fitted with Dxi engines under Euro 4 or 5 standards.

Upstream programming of the emulation box

We program the amount of adblue simulated on the vehicle's dashboard. According to 9 levels, we can set the needle/bar from 1 quarter to full. In this case, we've set the vehicle's gauge to 100%.

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