Mercedes-Benz – MP3 Euro 5 NOx Sensor Emulator [PCB Board]

Professional NOx Sensor / Sensors Emulator designed for vehicles equipped with an SCR (AdBlue) system featuring one or two NOx sensors. Depending on the vehicle configuration, the device fully replaces the function of the NOx sensor(s) — either upstream, downstream, or both — effectively restoring proper operation of the exhaust aftertreatment system without the need for expensive replacement of faulty components.

 

Supported Vehicles:

The device is compatible with all Mercedes-Benz brand vehicles equipped with an SCR system and a NOx sensor, compliant with Euro 5 (MP3) emission standard, including:

• Actros,
• Atego,
• Axor,
• Econic.

In the listed vehicle models, one NOx sensor is installed downstream of the SCR catalyst – the emulator replaces the function of this component.

 

The device effectively prevents the vehicle from entering limp mode caused by, among others:

 

After installation, all other components of the SCR (AdBlue) system remain fully functional. The exhaust aftertreatment system remains visible in diagnostic software, making the emulator undetectable during standard technical or roadside inspections.

 

Key Information About the NOx Emulator:

• Installed directly in place of the original NOx sensor electronics.
• In some vehicles, installation of the emulator may reduce AdBlue consumption — depending on engine control unit (ECU) configuration.

 

Technical Specifications:

• Connector: Pin layout matches the original manufacturer’s (OEM) circuit board.
• Power supply voltage: 6 – 24 Volt DC.
• Dimensions: 37 × 30 × 3 mm [length x width x thickness].
• Weight: 5 grams.

 

Set Includes:

• Fully assembled, ready-to-use device.
• User manual.
• Proof of purchase – VAT invoice or receipt.

Product Information:

The emulator is intended for service, testing, and fleet integration applications. The end user is responsible for the installation and use in accordance with the regulations applicable in the area where the vehicle is operated. The device is compatible with the SCR system and does not interfere with its diagnostic functions.