Audi A3 8V Oxygen Lambda Sensor Exhaust 04L906088E

Audi A3 8V Oxygen Lambda Sensor Exhaust is a component from the Lambda sensors and O2 sensors category, responsible for the precise measurement of exhaust gas temperature. A properly functioning exhaust gas temperature sensor supports engine management, reduces the risk of component overheating, and helps maintain stable emission parameters.

Specifications and technical data

• SKU: 04L906088E
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L906088E
• Substitutable numbers: 04L906088E, 04L 906 088 E
• Category: Oxygen Sensors

Function and application of the exhaust gas temperature sensor in the Audi A3 8V

The Audi A3 8V Oxygen Lambda Sensor Exhaust monitors thermal conditions in the exhaust system, sending a signal to the engine control unit. Based on this data, the control unit can appropriately adjust the fuel dosage, turbocharger operation, or the regeneration strategy of exhaust gas treatment components. A stable temperature reading is crucial for maintaining the correct operating characteristics of the engine and protecting components exposed to high thermal loads.

Benefits of using an original Audi sensor

The original exhaust gas temperature sensor designed for Audi ensures:

• consistency of electrical characteristics with the factory engine control unit,
• repeatable, predictable readings across a wide temperature range,
• proper cooperation with the emission control system and on-board diagnostics.

This reduces the risk of error codes in the control unit memory, uneven engine operation, or improper regeneration of exhaust gas treatment components. Selecting a sensor that complies with factory specifications is particularly important in modern diesel engines, where the tolerance margin for parameter deviations is small.

Product characteristics and condition

The presented item comes from the group of original Audi components and is classified as used. This means it has been removed from a vehicle where it was already performing its function, which allows for maintaining factory fitment to the electrical installation and exhaust system. This type of part is an attractive cost-effective alternative to a new component, while maintaining proper functionality in daily operation.

When choosing a used exhaust gas temperature sensor, it is worth paying attention to compliance with the manufacturer's markings and the parameters of the engine used. The product has assigned catalog numbers and interchangeable numbers, which facilitates verification of compatibility with a specific vehicle configuration.

Selection by part numbers and technical support

To minimize the risk of errors when purchasing, it is recommended to select the sensor based on the manufacturer's part number or vehicle data. Proper matching allows you to avoid problems with installation, connector incompatibility, or different signal characteristics. In case of doubt, it is worth comparing the markings on your current part with the data in the specification and using service documentation.

Additional tips on choosing used sensors and electronic modules, including the principles of selection by OEM numbers and aspects of hardware and software compatibility, can be found in the guide: Used automotive electronics – ECU modules and second-hand sensors.

Expanding the exhaust measurement system in an Audi

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