Exhaust Temperature Sensor Mercedes W204 W212 OM651 Diesel Engine A0071536728

Mercedes W204 W212 Exhaust Gas Temperature Sensor is an original exhaust system component from the Lambda Sensors and O2 Sensors category, designed for diesel engines. Precise exhaust gas temperature measurement supports the proper functioning of the exhaust gas purification system, which translates into stable engine performance and safe thermal conditions within the exhaust system. This is a practical solution for users who want to restore the correct operation of the factory electronics in their Mercedes W204 and W212 models.

Specifications and technical data

• SKU: A0071536728
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0071536728
• Substitutable numbers: A0071536728, A 007 153 67 28
• Fuel type: Diesel
• Category: Oxygen Sensors

Application and Function in the Exhaust System

The exhaust gas temperature sensor in Mercedes W204 and W212 models is responsible for continuous monitoring of the exhaust system's operating conditions in Diesel engines. Based on the sensor's signal, the engine control unit adjusts the injection strategy, the exhaust gas recirculation system, and processes related to protecting exhaust components from overheating. A properly functioning sensor helps maintain stable engine operating parameters, reduce the risk of diagnostic errors, and ensure compliance with the manufacturer's factory settings.

Benefits of Installing an Original Mercedes Sensor

Choosing an original exhaust gas temperature sensor for Mercedes W204 and W212 primarily ensures a perfect fit for the electrical system and control unit software. A component from the same product line as the factory equipment provides:

• consistency with the operating logic of the engine control unit and onboard systems,
• a stable measurement signal across the full range of operating temperatures,
• a reduced risk of errors related to incorrect sensor characteristics.

This allows the exhaust system to maintain parameters close to factory specifications, and computer diagnostics remain clear and predictable for the service center.

Product Characteristics and Condition

The offered sensor belongs to the group of components referred to as used exhaust electronics. This means it comes from a dismantled vehicle, and its construction and connectors are consistent with the solutions used in series production Mercedes W204 and W212 models with diesel engines. This type of component is a good choice when aiming to preserve the original vehicle specifications while limiting repair costs.

Before installation, standard service procedures are recommended: checking the electrical system, verifying the wiring harness, and clearing any error codes from the control unit's memory after replacement. This allows for the full utilization of the sensor's potential and avoids secondary faults resulting from other system components.

Selection by Category, Brand, and Fuel Type

This sensor model belongs to the Lambda Sensors and O2 Sensors category, dedicated to the Mercedes brand and diesel-powered engines. When selecting, it is advisable to pay attention to compatibility with the vehicle generation (W204, W212) and the engine type to ensure full compatibility with the factory control unit. If in doubt, it is helpful to compare the construction with the dismantled element and consult with a diagnostician or mechanic specializing in the Mercedes brand.

If you are looking for other components from the Mercedes Lambda Sensors and O2 Sensors category, check out the Mercedes Lambda Sensors and O2 Sensors available in our store to select components that are consistent with your car's exhaust system.

More About Used Electronics and Sensors

When choosing a used exhaust gas temperature sensor, it is beneficial to know the basic principles of selection based on manufacturer markings, hardware compatibility, and control unit software. This is discussed in detail in the Global Parts guide: Used Automotive Electronics Onboard – Why Choose Second-Hand ECUs and Sensors?, where you will find practical tips on diagnostics, installation, and verification of the correct operation of such components.