Peugeot 308 Lambda Sensor Diesel Oxygen Probe Exhaust Sensor 9681852780

Peugeot 308 Lambda Sensor Diesel Oxygen Probe Exhaust Sensor is a component from the Lambda sensors and O2 sensors category, designed for diesel systems in Peugeot vehicles. It enables precise measurement of exhaust gas composition in a diesel engine, which supports stable engine operation, correct fuel dosage, and efficient performance of the exhaust emission control system.

Specifications and technical data

• SKU: 9681852780
• Mark: Peugeot
• Condition: Used
• OEM Part Number: 9681852780
• Substitutable numbers: 9681852780
• Fuel type: Diesel
• Category: Oxygen Sensors

Purpose and function in the exhaust system

The lambda sensor in a diesel engine is responsible for monitoring oxygen content in the exhaust gases and sending a signal to the engine control unit (ECU). This allows for maintaining the correct air-fuel mixture, which translates into stable engine operation, reduced smoke emissions, and support for emission reduction systems.

In Peugeot vehicles with a diesel engine, a properly functioning lambda sensor helps maintain correct combustion parameters, which is important for both performance and the longevity of components such as the diesel particulate filter (DPF) or the catalytic converter.

Benefits of using a lambda sensor in a diesel engine

The good condition of the oxygen sensor in a diesel exhaust system affects several key areas of vehicle operation:

• smoother engine operation across the full load range,
• more efficient operation of the exhaust emission control system,
• reduced risk of the unit entering limp mode due to incorrect readings,
• better compatibility with engine control unit software,
• easier diagnostics of potential faults related to exhaust emissions.

For diesel-powered vehicles, the stability of the O2 sensor signal is particularly important, as it influences regeneration strategies and the protection of exhaust system components.

Product characteristics and fitment

The presented Peugeot 308 Lambda Sensor Diesel Oxygen Probe Exhaust Sensor comes from the group of OEM components designed for the exhaust systems of this brand's cars. It belongs to the Lambda sensors and O2 sensors category, meaning it works with the factory engine control unit and is designed to meet the requirements of diesel engines.

Before installation, it is recommended to verify compatibility based on the manufacturer's markings and the diesel engine configuration in the specific vehicle. This approach facilitates full compatibility with the electrical installation and control software.

Condition, installation, and best service practices

The item is offered as used, which allows for an economical repair of the exhaust system while maintaining characteristics similar to original equipment. Before installation, it is worth performing a standard inspection of the installation – connectors, wiring, and exhaust system tightness – to ensure the new sensor operates under the best possible conditions.

When replacing a lambda sensor in a diesel engine, it is recommended to:

• check for stored error codes in the engine control unit,
• verify the condition of other sensors in the exhaust system,
• monitor operating parameters after installation using computer diagnostics.

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

More about used sensors and electronics

When selecting a used lambda sensor for a diesel engine, it is worth knowing the principles of matching based on manufacturer markings, hardware and software configuration of the controller, and basic installation procedures. A detailed discussion of these issues, along with practical examples and answers to frequently asked questions, can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?