Skoda Superb 3V Audi Q3 8U 2.0 TDI Diesel Lambda Probe NOX Sensor 04L906262AD

Skoda Superb 3V Audi Q3 8U 2.0 TDI Diesel Lambda NOX Sensor is a specialized component from the Lambda Sensors and O2 Sensors group, designed for diesel systems. It is responsible for precise measurement of nitrogen oxide concentration in exhaust gases, allowing the engine control unit to effectively manage the combustion process and the exhaust gas aftertreatment system in 2.0 TDI Diesel units.

Specifications and technical data

• SKU: 04L906262AD
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L906262AD
• Substitutable numbers: 04L906262AD, 04L 906 262 AD
• Fuel type: Diesel
• Category: Oxygen Sensors

Function of the NOX Sensor in a 2.0 TDI Diesel Engine

The NOX sensor in a diesel engine plays a crucial role in monitoring the exhaust gas composition after the exhaust system. Based on the signal from the sensor, the engine control unit adjusts the fuel injection, the exhaust gas recirculation system, and the regeneration strategy for exhaust aftertreatment components. A properly functioning NOX sensor helps maintain stable operation of the 2.0 TDI Diesel unit, reduce smoke, improve running smoothness, and ensure compliance with emission standards.

Benefits of Using an Original Lambda NOX Sensor

Using a dedicated NOX sensor for Skoda Superb 3V and Audi Q3 8U with a 2.0 TDI Diesel engine ensures:

• signal consistency with the factory engine control unit and exhaust system,
• stable operating parameters across the full range of loads and temperatures,
• proper cooperation with the nitrogen oxide reduction system,
• reduced risk of the engine entering limp mode due to exhaust emission-related errors.

For the user, this means more predictable operation, reduced unplanned downtime, and the ability to maintain correct emission values in diagnostic tests.

Product Characteristics and Application

The presented Lambda NOX sensor belongs to the Lambda Sensors and O2 Sensors group and is designed for systems powered by Diesel fuel. The sensor's design is adapted to the operating conditions in modern diesel engines, which experience high exhaust gas temperatures and complex aftertreatment systems. The product comes from the Audi brand, which translates to compliance with factory manufacturing and vehicle electronics communication standards.

The component is classified as used, which in practice allows for an economical repair of the exhaust emission system while maintaining the original component specification. This solution is particularly attractive for vehicles used intensively, where the cost of new exhaust electronics components is a significant service factor.

Selection, Installation, and Operational Aspects

When selecting a NOX sensor for Skoda Superb 3V or Audi Q3 8U with a 2.0 TDI Diesel engine, it is crucial to match it to the specific engine version and exhaust system configuration. A correctly selected sensor minimizes the risk of control unit errors, adaptation problems, and incorrect OBD diagnostic readings.

During installation, pay attention to:

• correct routing of the cable and connectors in the wiring harness,
• observing the correct tightening torque in the exhaust manifold,
• checking the exhaust system for leaks around the sensor,
• performing adaptation or clearing errors in the control unit after replacement, if required by the service procedure.

To better understand how to safely and consciously use used engine electronics and exhaust system components, refer to the Global Parts guide: Used Car Electronics Onboard – Why Choose Second-Hand ECU Modules and Sensors?.

Expansion of the Exhaust Measurement System in Audi Vehicles

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 lambda sensors, oxygen sensors, or NOX sensors, check the available parts in the Audi Lambda Sensors and O2 Sensors category.