Mercedes W205 W213 OM654 Diesel Exhaust Gas Temperature Sensor A0009059704

Mercedes W205 OM654 Exhaust Gas Temperature Sensor is a component from the Lambda Sensors and O2 Sensors group, designed for Mercedes diesel systems with the OM654 engine. It enables precise measurement of exhaust gas temperature in a diesel engine, which is crucial for the proper functioning of the exhaust system and emission control systems. A used OEM component is a sensible choice for professional repairs when you prioritize factory fit and stable operating parameters.

Specifications and technical data

• SKU: A0009059704
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0009059704
• Substitutable numbers: A0009059704, A 000 905 97 04, KD
• Fuel type: Diesel
• Category: Oxygen Sensors

The Role of the Exhaust Gas Temperature Sensor in the OM654 Engine

The exhaust gas temperature sensor in the OM654 unit is responsible for transmitting accurate information about thermal conditions in the exhaust system to the engine control unit. Based on this data, the ECU adjusts the fuel injection, the diesel particulate filter regeneration strategy, and the operation of other emission system components. In a diesel engine, a properly functioning sensor helps maintain stable unit operation, reduces the risk of component overheating, and ensures compliance with emission standards.

Benefits of Using an Original Mercedes Sensor

By using an original exhaust gas temperature sensor dedicated to the Mercedes W205 with the OM654 engine, you gain:

• a secure fit for the vehicle's electrical system and exhaust system,
• operating parameters consistent with the diesel engine manufacturer's specifications,
• stable temperature readings, essential for the correct operation of emission control systems,
• reduced risk of control unit errors and the unit entering limp-home mode.

For workshops and private users, this means a more predictable diagnostic process and a lower risk of warranty claims after repairs.

Application in Diesel Systems and Installation Aspects

The sensor is designed to work with Diesel fuel systems where exhaust gas temperature directly influences soot combustion and the protection of exhaust system components. In practice, installation involves mechanically seating the sensor in its designated socket and connecting it to the vehicle's wiring harness, ensuring proper cable routing and protection against overheating.

When replacing, pay attention to:

• cleaning the mounting socket in the exhaust system,
• checking the condition of the wiring harness and electrical connectors,
• proper tightening of the component to ensure sealing and accurate temperature readings.

Why Choose a Used OEM Sensor

A used exhaust gas temperature sensor for the Mercedes W205 with the OM654 engine is a solution that allows you to balance cost control with maintaining factory operating characteristics. An original part from a dismantled vehicle usually works better with the control unit's software than random aftermarket replacements, resulting in fewer diagnostic errors and more stable engine operation. This is particularly important in modern diesel engines where the exhaust emission system is tightly integrated with the engine control logic.

If you want to learn more about selecting and installing used electronic components and sensors in modern cars, check out the Global Parts guide: Used Automotive Electronics – ECU Modules and Second-Hand 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 temperature sensors, exhaust system probes, or measurement elements in the exhaust tract, check the available parts in the Mercedes Lambda Sensors and O2 Sensors category.