Audi A3 8V Lambda Oxygen NOX Sensor 04L906262A

Audi A3 8V Lambda Sensor 04L906262A is an original part from the lambda sensors and O2 sensors category, designed for precise monitoring of exhaust gas composition in the exhaust system. This used OEM Audi part ensures proper compatibility with the factory engine electronics, supporting stable engine operation and exhaust emission control. It's a solution for users seeking a technically proven component at a reasonable price.

Specifications and technical data

• SKU: 04L906262A
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L906262A
• Substitutable numbers: 04L906262A, 04L 906 262 A
• Category: Oxygen Sensors

Purpose and Role of the Lambda Sensor in Audi A3 8V

The lambda sensor in the Audi A3 8V is responsible for measuring the oxygen content in the exhaust gases and transmitting this data to the engine control unit. This allows for maintaining the correct fuel-air mixture, which translates to:

• stable engine operation across the full range of loads,
• reduced fuel consumption while maintaining adequate dynamics,
• exhaust emissions kept at the level intended by the manufacturer,
• proper cooperation with the catalytic converter and other exhaust system components.

Choosing a sensor dedicated to a specific generation of the A3 8V allows for maintaining the factory operating parameters of the powertrain and avoiding adaptation issues with the control unit.

Advantages of Using an Original Audi Lambda Sensor

The original Audi lambda sensor is designed for full compatibility with the engine control unit's software and the vehicle's electrical system. In practice, this means:

• secure fit of connectors and wiring harness without the need for installation modifications,
• correct signal interpretation by the ECU, without interference or reading errors,
• stable operating parameters across a wide range of temperatures and loads,
• reduced risk of diagnostic errors related to the fuel-air mixture.

For users who want to restore the full functionality of the fuel and exhaust system, using an original O2 sensor is a technically safe and predictable solution.

Characteristics of a Used Lambda Sensor

The presented used Audi A3 8V lambda sensor is a salvaged part intended for reinstallation in a vehicle with a compatible configuration. Choosing a used OEM component allows for:

• reducing repair costs while maintaining the original part specifications,
• avoiding signal quality issues typical of inexpensive aftermarket replacements,
• maintaining exhaust system consistency with the manufacturer's original design.

Before installation, a standard diagnostic procedure and verification of proper operation in the vehicle are recommended to confirm correct compatibility with the existing engine control unit.

Selection by OEM Number and Integration with Electronics

For lambda sensors and O2 sensors, compatibility with the OEM number and electrical parameters is crucial. A correctly selected component:

• ensures correct voltage values and response times,
• eliminates the risk of incorrect adaptation in the control unit,
• reduces the occurrence of "too rich/lean mixture" errors.

If you want to better understand how to safely choose used engine electronics and sensors, you can find practical tips in the guide used car electronics – second-hand ECUs and sensors, which discusses, among other things, selection by OEM number and compatibility issues.

Other Audi Lambda Sensors and O2 Sensors

If you are also looking for other Audi lambda sensors and O2 sensors for your vehicle, check out the Audi lambda sensors and O2 sensors available in our assortment to select the element best suited for your specific engine version.