Mercedes W213 NOX Sensor Lambda Oxygen Probe A0009054604

Mercedes W213 NOX Sensor Lambda Oxygen Probe is a component from the Lambda probes and O2 sensors category, designed for precise monitoring of exhaust gas composition and nitrogen oxide content in the exhaust system. A properly selected NOX sensor ensures stable engine operation, correct air-fuel mixture regulation, and supports compliance with emission standards in Mercedes E-Class W213 generation vehicles.

Specifications and technical data

• SKU: A0009054604
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009054604
• Substitutable numbers: A0009054604, A 000 905 46 04
• Category: Oxygen Sensors

Function and application of the NOX sensor in Mercedes W213

The NOX sensor in the Mercedes W213 works with the engine control system, providing information about the nitrogen oxide and oxygen content in the exhaust gases. Based on this data, the controller can adjust the fuel dose, fuel injection system operation, and exhaust treatment strategy, which translates into stable engine performance and reduced fuel consumption.

This component is particularly important in vehicles equipped with advanced exhaust treatment systems, where accurate reading of exhaust parameters is crucial for the proper operation of catalytic converters and filters. A properly functioning NOX probe reduces the risk of the engine entering limp mode and the occurrence of emission-related errors.

Benefits of using an original Mercedes sensor

The original sensor from the Lambda probes and O2 sensors group designed for the Mercedes W213 ensures:

• consistency with the factory engine controller calibration,
• stable and repeatable exhaust parameter readings,
• proper cooperation with the on-board diagnostic system,
• reduced risk of emission errors and limp mode.

By maintaining factory operating parameters, such a component allows for predictable vehicle behavior, which is especially important in daily use and during periodic technical inspections.

Characteristics and condition of the component

The presented Mercedes W213 NOX Sensor Lambda Oxygen Probe is a part intended for reinstallation in a Mercedes vehicle. As a used component, it comes from dismantling and is a cost-effective solution compared to new components, while maintaining the functionality required for the proper operation of the engine control system.

Choosing a used sensor from this group allows for reduced repair costs while maintaining compatibility with the vehicle's factory installation. This is a particularly attractive solution for comprehensive exhaust system maintenance and diagnosis of emission-related faults.

Selection, installation, and diagnostics

To ensure proper system operation, it is recommended to verify the sensor's compatibility with the specific engine version and model year of the Mercedes W213 before installation. In workshop practice, it is also important to check the electrical installation, the condition of the wiring harness, and the correct seating of the sensor in the exhaust system so that the readings are stable and undisturbed.

When replacing the NOX sensor, it is worth:

• performing computer diagnostics after installation,
• clearing stored errors in the engine controller,
• verifying current probe operating parameters in a diagnostic tester,
• checking the tightness of the exhaust system at the installation point.

This allows you to confirm that the newly installed component works correctly with the vehicle's electronics and restores full functionality to the emission control system.

Expanding knowledge and selecting used electronics

If you want to better understand how to safely select used sensors and control modules, including components from the engine electronics group, it is worth reading the guide on our blog: Used automotive electronics – ECU modules and second-hand sensors. You will find practical tips on selection by part numbers, compatibility, and installation procedures.

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Mercedes and need other components from the same group, such as oxygen probes, NOX sensors, or additional exhaust gas composition sensors, check the available parts in the Mercedes Lambda probes and O2 sensors category.