Mercedes W205 Diesel Lambda Exhaust Gas Temperature Sensor A0009058611

Mercedes W205 Diesel Lambda Exhaust Gas Temperature Sensor is a precision exhaust system component designed for operation in diesel engines. It is responsible for the accurate measurement of temperature and exhaust gas composition, which supports the proper functioning of the engine control unit, exhaust aftertreatment system, and injection strategy. As a part of the Lambda sensors and O2 sensors category, it serves as a vital link in maintaining stable engine performance and emission control.

Specifications and technical data

• SKU: A0009058611
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009058611
• Substitutable numbers: A0009058611, A 000 905 86 11
• Fuel type: Diesel
• Category: Oxygen Sensors

Purpose and function in the exhaust system

The offered exhaust gas temperature sensor for the Mercedes C-Class W205 generation with a diesel engine works with the engine control system, monitoring conditions within the exhaust gas stream. Based on the signal from the sensor, the controller can:

• correct the fuel dose in the diesel engine,
• manage the DPF/FAP particulate filter regeneration process,
• control the temperature in the exhaust system,
• limit the risk of overheating exhaust components.

Stable readings of temperature and exhaust gas composition translate into smooth engine operation, better refinement, and the maintenance of emission parameters in accordance with the manufacturer's specifications.

Benefits of using an original sensor in the Mercedes W205

In Mercedes vehicles with a diesel engine, a properly functioning exhaust gas temperature sensor has a direct impact on the service life of the exhaust system and associated components. Using an original solution from the Lambda sensors and O2 sensors category ensures:

• appropriate operating characteristics matched to the Mercedes engine controller,
• proper cooperation with ECU software without the need for adaptation,
• consistency with the factory emission control and component protection strategy,
• reduction of the risk of exhaust system-related errors.

For the user, this means more predictable vehicle behavior, no unwanted dashboard messages, and stable diesel engine operating parameters in daily use.

Component characteristics and application in diesel engines

The exhaust gas temperature sensor in the exhaust system of a diesel-powered Mercedes W205 is adapted to operate at high temperatures and under variable exhaust flow conditions. Its design enables:

• continuous temperature measurement at a critical point in the exhaust system,
• generation of an electrical signal readable by the engine controller,
• operation in an environment contaminated with soot and combustion products,
• maintenance of appropriate response dynamics to changes in engine load.

Thanks to this, the controller can react in real-time to changes in operating conditions, which is particularly important in modern diesel units where precise control of the combustion process is crucial for durability and fuel economy.

Condition, selection, and application of the used sensor

The offered item is in used condition, which allows for an economical repair of the exhaust system while maintaining the original manufacturer's specifications. In the case of electronics and sensors in cars, it is worth paying attention to the correct selection based on the model, engine version, and fuel type. Both manufacturer markings and catalog data can be helpful, enabling the sensor to be matched to the specific configuration of the Mercedes W205.

If you want to better understand when choosing a used electronic component is a reasonable solution, how to assess its suitability, and what to look for when purchasing, check out our guide: Second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Expanding the exhaust measurement system in a Mercedes

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