Mercedes-Benz A B W169 W245 180 CDI Gas Exhaust Temperature Sensor A0071539128

Mercedes-Benz A B W169 W245 180 CDI Gas Exhaust Temperature Sensor is a precision component of the exhaust control system, classified under Lambda sensors and O2 sensors. It is responsible for the accurate measurement of exhaust gas temperature, which allows the engine control unit to ensure stable operation and maintain correct emission parameters. The used OEM component is a sensible choice when servicing the exhaust system in Mercedes compact class vehicles.

Specifications and technical data

• SKU: A0071539128
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0071539128
• Substitutable numbers: A0071539128, A 007 153 91 28
• Category: Other Interior Parts & Accessories

Function and role of the exhaust gas temperature sensor

The exhaust gas temperature sensor in Mercedes W169 and W245 models monitors operating conditions in the exhaust system, transmitting information to the engine control unit necessary for controlling the air-fuel mixture and protecting components exposed to high temperatures. A properly functioning sensor:

• supports stable operation of the exhaust gas purification system,
• helps reduce the risk of overheating exhaust components,
• facilitates compliance with emission standards,
• reduces the likelihood of error codes appearing in the engine control unit.

Thanks to this, replacing a faulty component with a verified exhaust gas temperature sensor is an essential step in professional diagnostics and exhaust system repair.

Benefits of using an original Mercedes sensor

Using original solutions in the Lambda sensors and O2 sensors group allows for maintaining the factory performance characteristics of the powertrain. In the case of the Mercedes-Benz A B W169 W245 180 CDI Gas Exhaust Temperature Sensor, this means:

• reliable cooperation with the factory engine control unit software,
• appropriate signal values across the full range of operating temperatures,
• reduced risk of errors related to incorrect resistance or sensor characteristics.

The used OEM component is a cost-effective solution that is also technically matched to the specific generation of Mercedes vehicles, which is particularly important for precision measurement components.

Condition, fitment, and service application

The offered exhaust gas temperature sensor is a second-hand component intended for reinstallation in Mercedes W169 and W245 series vehicles. Such components are often chosen for:

• repairs following the appearance of exhaust temperature-related errors,
• exhaust system service after modifications or replacement of other components,
• diagnosing engine performance issues related to load and warm-up phases.

Selection by OEM part number and interchangeable numbers (visible in the technical specification) allows for verifying compatibility with a specific engine version and vehicle model year.

How to safely select a used exhaust gas temperature sensor

When choosing a used exhaust gas temperature sensor for a Mercedes, it is crucial to pay attention to the consistency of markings and application groups. In practice, this means:

• checking the OEM part number in the vehicle documentation or manufacturer's catalog,
• comparing interchangeable numbers with the information in the product specification,
• taking into account the body generation (W169, W245) and engine configuration.

A sensible selection of a component from the secondary market allows for reducing repair costs while maintaining the proper operation of the 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 temperature sensors, measurement probes, or control elements, check the available parts in the Mercedes Lambda sensors and O2 sensors category.

More about used electronics and sensors in a car

When deciding to install a used exhaust gas temperature sensor, it is worth knowing the best practices for selecting and installing electronics and measurement components in vehicles. A detailed discussion of compatibility issues, selection by OEM numbers, and practical application examples can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?