Mercedes W177 W247 AMG Gas Exhaust Temperature Probe Sensor A0009057609

Mercedes W177 W247 AMG Gas Exhaust Temperature Probe Sensor is a precision exhaust system component from the Lambda probes and O2 sensors group, designed for vehicles with gasoline engines. It is responsible for accurate temperature measurement in the critical engine operating area, which supports stable ECU performance and correct fuel metering. Using an OEM component of this type allows for a technically correct repair without the need to resort to expensive replacements of unknown origin.

Specifications and technical data

• SKU: A0009057609
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009057609
• Substitutable numbers: A0009057609, A 000 905 76 09, KD
• Fuel type: Petrol
• Category: Oxygen Sensors

Function of the temperature sensor in a gasoline system

The temperature sensor in Mercedes W177 and W247 models works with the engine electronics, monitoring operating conditions in the exhaust area. Based on its signal, the ECU can:

• correct the air-fuel mixture composition,
• stabilize the ignition system operation,
• protect exhaust system components from overheating,
• maintain compliance with emission standards.

For gasoline units, repeatability of temperature readings is particularly important, as incorrect data can lead to increased fuel consumption, power loss, or the appearance of errors in the ECU.

Benefits of using an original Mercedes sensor

Choosing an original temperature sensor for a Mercedes ensures a perfect match in terms of electrical and mechanical characteristics. As a result:

• the engine control unit receives a signal with parameters consistent with factory specifications,
• you minimize the risk of adaptation problems and diagnostic errors,
• you maintain consistent operation with other system components, such as lambda probes or other O2 sensors.

A used OEM component is a reasonable compromise between cost and quality – it allows you to maintain factory control logic without overstraining your service budget.

Application in Mercedes W177 and W247 vehicles

The presented temperature sensor is intended for modern Mercedes A-Class (W177) and B-Class (W247) models with gasoline engines. In these designs, precise monitoring of operating parameters is particularly important, as the power units are highly integrated with the control electronics.

In practice, this means that a correctly selected sensor:

• facilitates diagnostics and subsequent service,
• reduces the risk of random errors related to exhaust gas temperature,
• supports the stable operation of systems responsible for emissions and safety.

Condition, selection, and installation of the sensor

The offered temperature sensor is a used item, which in the case of electronics and engine accessories often constitutes an economically justified solution, especially when it comes from the same model family. When selecting, it is worth paying attention to compliance with the manufacturer's markings and fuel type – in this case, it is a gasoline system.

To facilitate proper selection and installation, we have prepared a practical guide describing the principles of selecting used modules and sensors, including selection by VIN/OEM, hardware and software compatibility issues, and typical user questions – you can find it in the article Used automotive electronics – a guide to selecting ECU modules and sensors.

Related items from the same group

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 O2 sensors, lambda probes, or related temperature sensors, check the available parts in the Mercedes Lambda probes and O2 sensors category.