Audi A4 B7 Lambda Sensor Oxygen Sensor Lambda Probe 06A906262BR

Audi A4 B7 Lambda Sensor Oxygen Sensor Lambda Probe is a component from the Lambda sensors and O2 sensors category, designed for Diesel engines. It is responsible for the precise measurement of exhaust gas composition, which allows the engine control unit to properly dose fuel and maintain stable operating parameters of the powertrain.

Specifications and technical data

• SKU: 06A906262BR-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 06A906262BR
• Substitutable numbers: 06A906262BR, 06A 906 262 BR
• Fuel type: Diesel
• Category: Oxygen Sensors

Function of the lambda sensor in a Diesel engine

The lambda sensor in a 1.6 TDI engine monitors the oxygen content in the exhaust gases, allowing the controller to continuously correct the fuel dose and the operation of the injection system. A properly functioning sensor supports:

• stable engine operation across the full load range,
• maintaining the correct mixture composition during warm-up and steady-state operation,
• efficient cooperation with the exhaust gas treatment system, including the particulate filter,
• reduction of smoke emissions and limitation of fuel consumption.

For TDI units, the repeatability of the sensor signal is particularly important – its wear or damage can result in a drop in dynamics, increased fuel consumption, and the appearance of errors in the controller.

Benefits of using an original Audi lambda sensor

The offered Audi lambda sensor comes from the original parts line, which means maintaining factory electrical parameters and signal characteristics. In practice, this translates into:

• proper cooperation with the factory engine control unit software,
• appropriate reaction speed to changes in exhaust gas composition,
• reduced risk of mixture adaptation errors,
• better measurement repeatability compared to many aftermarket replacements.

Thanks to maintaining the manufacturer's specifications, replacing it with an original component allows for restoring the correct operating parameters of the fuel system without the need for additional modifications.

Product characteristics and application

Audi A4 B7 Lambda Sensor Oxygen Sensor Lambda Probe is designed for diesel engines where precise control of the combustion process is key. This component works with the engine control system, transmitting a voltage signal corresponding to the current exhaust gas composition.

The product is offered in a used condition, which allows for an economical vehicle repair while maintaining the original specification. Before installation, it is recommended to verify the electrical wiring and check the exhaust system for leaks to ensure proper operating conditions for the sensor.

Professional selection and installation

To select the correct lambda sensor for a specific engine configuration, it is worth using the manufacturer's markings and vehicle data. It is also helpful to compare the removed component in terms of connector type, cable length, and mounting method in the exhaust system.

During installation, it is recommended to:

• use the appropriate tightening torque,
• avoid contaminating the sensor with grease or fuel,
• check the condition of the wiring harness and electrical connectors,
• after installation – clear any errors and perform adaptation in the controller, if provided by the manufacturer.

Thanks to proper installation, you can fully utilize the advantages of the original sensor and restore stable operating parameters of the powertrain.

More items from the same group and technical knowledge

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

To better understand the specifics of used sensors and engine electronics, how to select them by manufacturer markings, and the principles of safe installation, it is worth reading the guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?