Mercedes W207 W212 OM651 Exhaust Temperature Sensor Engine A0081534128

Mercedes W207 / W212 Diesel OM651 Exhaust Gas Temperature Sensor is an original exhaust system component designed for precise monitoring of exhaust gas temperature in diesel engines. Thanks to its factory fit for the OM651 engine and integration with the vehicle's electronics, this item from the temperature sensors category supports the proper functioning of exhaust gas treatment systems and engine control strategies. A used component allows for an economical yet technically correct repair without compromising compatibility.

Specifications and technical data

• SKU: rhd-A0081534128
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A0081534128
• Substitutable numbers: A0081534128, A 008 153 41 28, KD
• Fuel type: Diesel
• Category: Temperature Sensors

Application in OM651 Engine and Role in the Exhaust System

This exhaust gas temperature sensor is dedicated to OM651 diesel engines installed in Mercedes E-Class W212 and E-Class Coupé W207 models. The component works with the engine control system, transmitting information about the current exhaust gas temperature in the exhaust system, which is important for, among others:

• controlling the soot combustion process in the diesel particulate filter (DPF),
• protecting exhaust system components from overheating,
• optimizing injection and boost strategies in diesel engines,
• diagnosing errors related to exhaust emissions and limp mode.

Thanks to accurate temperature readings, the engine control unit can maintain stable operating parameters, which translates to smooth engine operation and predictable vehicle behavior.

Benefits of Using an Original Mercedes Temperature Sensor

Using an original exhaust gas temperature sensor in the OM651 diesel engine offers a range of practical service and operational benefits:

• Factory Electrical and Mechanical Fit – the correct connector type, cable length, and part geometry facilitate installation in the location specified by the manufacturer.
• Stable Measurement Characteristics – the sensor works with the factory control unit software, reducing the risk of incorrect readings and random errors in the ECU memory.
• Consistency with the Exhaust Emission System – correct temperature data is crucial for the operation of the DPF and other components responsible for meeting emission standards.
• The ability to restore correct engine operating parameters after exhaust gas temperature-related errors have occurred.

Technical Characteristics and Purpose

The sensor belongs to the temperature sensors category and is designed for operation in the demanding thermal conditions typical of a diesel engine's exhaust system. The component's design is adapted for:

• continuous operation at high exhaust gas temperatures characteristic of diesel engines,
• resistance to vibrations and variable engine load conditions,
• compatibility with the factory engine control unit in Mercedes W207 and W212 vehicles.

As a used component, the sensor is a sensible choice for repairs where compliance with the original installation and maintaining factory-like operating parameters are crucial.

Condition, Installation, and Selection Based on Technical Data

The offered exhaust gas temperature sensor is a used item, which helps reduce repair costs while maintaining the original manufacturer's specifications. Before installation, standard service procedures are recommended, including:

• verification of the mounting socket in the exhaust system (no excessive corrosion or mechanical damage),
• checking the electrical harness and connector for damage,
• clearing errors in the engine control unit after replacement and performing a test drive.

It is advisable to base sensor selection on the vehicle's technical data and manufacturer's markings to ensure full compatibility with the specific OM651 engine version and exhaust system configuration.

More Mercedes Temperature Sensors and Knowledge about Used Electronics

If you are looking for other Mercedes temperature sensors compatible with specific models and engine versions, check our offer in the Mercedes temperature sensors category, where you will find a wide selection of components for exhaust and cooling systems.

When planning to purchase a used exhaust gas temperature sensor or other engine electronics components, it is worth familiarizing yourself with the principles of selection based on manufacturer markings, hardware and software compatibility, and correct installation procedures. We discuss these issues in detail in the guide used automotive electronics – why choose ECU modules and sensors from second-hand, which will help you plan repairs consciously and avoid common installation errors.