Vauxhall Astra H Vectra C 1.9 CDTI Lambda Sensor Sonde Probe Bosch 0281004026

Vauxhall Astra H Vectra C 1.9 CDTI Lambda Sensor Sonde Probe is a specialized exhaust gas sensor from the Lambda sensors and O2 sensors category, designed for diesel engines. This component is responsible for the precise measurement of exhaust gas composition in a Diesel engine, which supports the proper operation of the fuel injection system and exhaust gas treatment system. Using an original OEM Bosch part for Opel is a solution for users who expect factory-fitment and stable operating parameters without the need to resort to replacements of unknown origin.

Specifications and technical data

• SKU: 0281004026
• Mark: Opel
• Condition: Used
• OEM Part Number: 0281004026
• Substitutable numbers: 0281004026, 0 281 004 026, 55189996, 93179226
• Fuel type: Diesel
• Category: Oxygen Sensors

Purpose and function in the powertrain

The presented lambda sensor operates in the exhaust system of the 1.9 CDTI engine, monitoring the oxygen content in the exhaust gases. Based on the signal from the sensor, the engine control unit adjusts the fuel dose, which allows for maintaining the optimal mixture composition under the operating conditions of a diesel unit. A properly functioning sensor:

• supports stable diesel engine performance,
• reduces excessive smoke and the emission of harmful exhaust components,
• helps maintain correct fuel consumption,
• reduces the risk of clogging exhaust system components.

Benefits of using a Bosch lambda sensor in an Opel

Choosing an original Bosch lambda sensor dedicated to Opel Astra H and Opel Vectra C models with a 1.9 CDTI engine ensures compatibility with the factory engine control unit characteristics. The sensor is designed to operate in the demanding thermal and chemical conditions of the exhaust system, which translates into a stable measurement signal across a wide range of loads. Using the correct sensor in a diesel engine:

• facilitates diagnostics and eliminates errors related to incorrect exhaust gas composition,
• reduces the risk of the unit entering limp mode,
• ensures predictable vehicle behavior during acceleration and constant speed driving.

Product characteristics and installation

The offered Bosch lambda sensor for Opel belongs to the group of exhaust system measurement components designed for diesel-powered engines. As a used part, it comes from dismantling and provides a solution for users looking for a factory component at a more favorable price than a new item. Installing the sensor requires following the correct tightening procedure and checking the electrical harness to ensure proper signal transmission to the engine control unit.

Before installation, it is recommended to verify compatibility using the OEM number or interchangeable numbers in the technical specification, as well as to compare it with the currently installed sensor. This minimizes the risk of compatibility issues and the need for re-dismantling.

Selecting used electronics and sensors in practice

In the case of components such as a lambda sensor, correct matching to the specific engine version and control unit is crucial. It is worth using OEM markings and reference numbers, as well as vehicle data (VIN), to select the correct sensor. A detailed discussion of selection principles, compatibility issues, and practical examples can be found in the Global Parts guide: Used automotive electronics – ECU modules and second-hand sensors.

If you are planning a comprehensive repair or upgrade of the engine area in your Opel and need other components from the same group, such as additional exhaust sensors, temperature sensors, or other O2 sensors, check the available parts in the Opel Lambda sensors and O2 sensors category.

Summary

Vauxhall Astra H Vectra C 1.9 CDTI Lambda Sensor Sonde Probe is a used, original oxygen sensor designed for diesel engines, which supports the proper operation of the fuel injection system and reduces exhaust emissions. Choosing a factory solution from the Lambda sensors and O2 sensors category allows for maintaining compliance with the parameters provided by the vehicle manufacturer, which translates into predictable engine performance and easier diagnostics in the future.