Mercedes W207 OM642 Diesel Engine Exhaust Gas Temperature Sensor A0081533628

Mercedes W207 OM642 Diesel Engine Exhaust Gas Temperature Sensor is a precision component of the diesel engine control system, responsible for the accurate measurement of exhaust gas temperature. By doing so, it supports the proper operation of the fuel injection system and the exhaust gas aftertreatment system, which translates into stable engine performance characteristics and predictable vehicle behavior. Choosing an original sensor from this series is a way to maintain the factory operating parameters of the diesel engine and reduce the risk of errors in the control electronics.

Specifications and technical data

• SKU: A0081533628
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0081533628
• Substitutable numbers: A0081533628, A 008 153 36 28
• Fuel type: Diesel
• Category: Temperature Sensors

The role of the exhaust gas temperature sensor in the OM642 diesel engine

The exhaust gas temperature sensor in a diesel engine plays a key role in monitoring the thermal load of the engine and exhaust system components. Based on the signal from the sensor, the engine control unit (ECU) adjusts the fuel dosage, injection strategy, and the operation of systems responsible for emission reduction. A properly functioning component allows for maintaining a stable operating temperature, which promotes smooth engine operation and correct response to load.

Benefits of using an original Mercedes sensor

Using a sensor dedicated to the OM642 unit ensures:

• consistency of measurement characteristics with the maps stored in the engine control unit,
• reliable exhaust gas temperature readings across the full load range,
• reduction in the risk of diagnostic errors related to the exhaust system,
• better control over the combustion process in the diesel engine.

As a result, the powertrain maintains predictable parameters, and responses to load changes are more repeatable. This is particularly important in vehicles used intensively, where engine stability has a direct impact on driving comfort and component durability.

Performance characteristics and application

The presented exhaust gas temperature sensor is designed to work with the OM642 family diesel engine installed in Mercedes W207 class models. This component works with the factory engine control unit, transmitting the temperature signal necessary for real-time adjustment of operating parameters. A properly selected sensor helps limit excessive thermal loads on the exhaust system and supports the maintenance of stable engine operating conditions in various usage scenarios.

Why choose a used exhaust gas temperature sensor

A used exhaust gas temperature sensor from the original Mercedes production line is a solution that allows you to combine cost control with compliance with factory specifications. In many cases, such a component offers a favorable price-to-functionality ratio while maintaining the correct measurement characteristics. This is a practical option when diagnosing faults related to the exhaust system, where it is necessary to replace the sensor with a part that meets factory parameters.

If you want to better understand how to safely select and install used electronic components in a car, including sensors, it is worth checking out the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

Expanding the exhaust gas temperature measurement system in a Mercedes

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional temperature sensors, components monitoring exhaust system operation, or parts monitoring engine operating conditions, check the available parts in the Mercedes temperature sensors category.

Summary

Mercedes W207 OM642 Diesel Engine Exhaust Gas Temperature Sensor is a functional component designed for the diesel engine that supports proper control system operation and exhaust gas temperature monitoring. Using an original solution from this series helps maintain stable engine operating parameters, reduce the risk of errors related to the exhaust system, and preserve consistency with the vehicle's factory configuration. It is a reasonable choice for servicing and diagnosing the exhaust gas temperature measurement system in a Mercedes with an OM642 unit.