Mercedes Vito W447 Sprinter W907 OM654 Knox Sensor Exhaust Probe 0009055114

Mercedes Vito W447 Sprinter W907 OM654 Knox Sensor Exhaust Probe is a specialized exhaust system component from the Lambda sensors and O2 sensors group, designed for precise monitoring of exhaust gas composition in modern OM654 engines. A properly selected NOx sensor supports the correct operation of exhaust gas treatment systems, stable engine performance, and compliance with emission standards. This used OEM component is a sensible choice for professional repair or diagnostics of the latest generation Mercedes Vito and Sprinter vehicles.

Specifications and technical data

• SKU: 0009055114
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009055114
• Substitutable numbers: A0009050701, A 000 905 07 01
• Category: Oxygen Sensors

Purpose and function in the exhaust system

The NOx lambda sensor in the OM654 engine is responsible for continuous measurement of nitrogen oxide content in the exhaust gases, which allows the engine control unit to precisely dose fuel and the reducing agent in the exhaust treatment system. A properly functioning sensor:

• stabilizes the engine's operation across the full load range,
• supports the maintenance of low fuel consumption,
• reduces the emission of harmful compounds,
• prevents the engine from entering limp mode associated with NOx errors.

In Mercedes Vito W447 and Sprinter W907 vehicles, the use of the correct NOx sensor is crucial for proper cooperation with the factory controller software and maintaining the operating parameters specified by the manufacturer.

Benefits of using an original NOx lambda sensor

Using an original component from the Lambda sensors and O2 sensors group in Mercedes vehicles brings measurable operational benefits. The sensor is factory-adjusted to the characteristics of the OM654 engine, thanks to which it:

• ensures proper communication with vehicle electronics (ECU, emission systems),
• maintains stable fuel trim values and combustion parameters,
• minimizes the risk of errors related to the exhaust system,
• facilitates diagnostics – sensor readings are consistent with factory maps and service procedures.

For workshops and users, this means a more predictable repair process and a lower risk of needing to replace the component again after a short time.

Installation and operational characteristics

The presented NOx lambda sensor is an OEM component designed to work in the demanding thermal and chemical conditions of the exhaust system. The sensor's design is optimized for:

• resistance to high exhaust gas temperatures,
• stability of the measurement signal over a long period of use,
• compatibility with factory wiring and connectors in the Mercedes Vito W447 and Sprinter W907,
• maintaining the appropriate response speed to changes in exhaust gas composition.

The used component allows for an economical repair while maintaining the original operating characteristics of the exhaust emission system, which is particularly important in commercial vehicles used intensively in transport.

Selection of used electronics and sensors in service practice

When choosing a used NOx lambda sensor for a Mercedes, it is worth paying attention to compatibility with the specific engine version and exhaust treatment system. Proper selection of the component allows you to avoid problems with adaptation, controller errors, and improper operation of the SCR system. If you want to understand more about when choosing used modules and sensors makes sense and how to minimize risks, check out our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Mercedes Lambda sensors and O2 sensors – expansion and service of the emission system

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional measuring probes, pre-catalyst sensors, or post-catalyst sensors, check out the available parts in the Mercedes Lambda sensors and O2 sensors category.