NOX Sensor Mercedes W205 W213 W238 W447 Lambda Oxygen Probe A0009050108

NOX Sensor Mercedes W205 W213 W238 W447 Lambda Oxygen Probe is a specialized exhaust system component responsible for precise exhaust gas composition measurement and nitrogen oxide emission control in modern Mercedes models. Thanks to its factory design tailored to specific vehicle generations, it ensures operational consistency with engine electronics and stable performance of exhaust gas treatment systems. This is a practical solution for users who want to restore proper system operation without the need to invest in a brand-new component.

Specifications and technical data

• SKU: A0009050108
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009050108
• Substitutable numbers: A0009050108, A 000 905 01 08
• Category: Oxygen Sensors

Purpose and function in the exhaust system

The presented NOX sensor integrated with a lambda probe belongs to the Lambda probes and O2 sensors category, which are components responsible for monitoring the fuel-air mixture composition and nitrogen oxide content in exhaust gases. In Mercedes W205, W213, W238, and W447 series vehicles, it works with the engine control system, enabling:

• continuous monitoring of exhaust parameters under various load conditions,
• proper operation of emission reduction systems,
• maintaining stable engine performance in terms of power and torque,
• reducing the risk of the engine entering limp mode due to emission errors.

As a result, the NOX sensor with lambda probe supports compliance with emission standards and helps maintain predictable, repeatable vehicle behavior in daily operation.

Benefits of using an original Mercedes component

Choosing an original solution dedicated to specific Mercedes models brings a number of practical benefits. This type of sensor is designed for full integration with the factory engine control unit software, which translates into:

• consistency of measurement parameters with injection maps and exhaust system operating strategy,
• maintaining appropriate dynamic response to engine load changes,
• reduced risk of diagnostic errors related to incorrect exhaust gas composition readings,
• easier diagnostics in the future – reading values correspond to factory ranges.

By using an original NOX sensor with lambda probe, the user maintains the integrity of the entire engine control system, which is particularly important in modern Mercedes designs where many systems are closely interconnected.

Characteristics of the used component

The offered item is a used component, which allows for significantly reducing the cost of restoring exhaust system efficiency compared to purchasing a new part. This type of solution is often chosen for vehicles in intensive use, where a reasonable balance between service costs and maintaining correct engine operating parameters is important.

For installation, it is recommended to perform a standard diagnostic procedure after fitting, including reading error codes, verifying current parameters, and potential adaptation in the engine control unit, in accordance with the vehicle manufacturer's recommendations. This ensures that the newly installed sensor works correctly with the existing system configuration.

Support in choosing used electronics and sensors

Selecting the right NOX sensor with lambda probe for a specific engine version and vehicle year requires attention to compatibility with control electronics and other exhaust system components. It is worth checking out practical tips regarding the purchase of used electronic car parts – you can find them in the article Second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which discusses key aspects of selecting and verifying such components.

Expanding the Mercedes exhaust measurement system

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

Additional information on the advantages of using original, used components in vehicles of this brand is also provided in the guide used parts for Mercedes – original components from dismantling, which describes how to consciously reduce service costs while maintaining the comfort and refinement characteristic of Mercedes.