Audi Q5 FY NOx Sensor Rear Lambda Probe Sensor Exhaust Temperature 80A907807AG

Audi Q5 FY NOx Sensor Lambda Sensor Rear Exhaust Temperature is an original part from the Lambda Sensors and O2 Sensors group, designed for the rear section of the exhaust system. Designed by Audi, it ensures precise exhaust gas composition measurement and temperature control, supporting the proper functioning of the exhaust gas purification system and stable engine operation.

Specifications and technical data

• SKU: 80A907807AG
• Mark: Audi
• Condition: Used
• OEM Part Number: 80A907807AG
• Substitutable numbers: 80A907807AG, 80A 907 807 AG
• Location on the vehicle: Rear
• Category: Oxygen Sensors

Function and Application in the Exhaust System

This rear NOx sensor and lambda sensor is responsible for monitoring the nitrogen oxide content and mixture composition in the exhaust gases after the main purification elements. This allows the engine control unit to:

• correct the fuel injection based on actual exhaust gas parameters,
• monitor the efficiency of the catalytic converter and other exhaust system components,
• maintain stable engine operating parameters under various load conditions.

The additional function of measuring exhaust gas temperature in the rear section of the exhaust system allows for safe thermal load management, which is important for component durability and compliance with emission standards.

Benefits of Using an Original Audi Sensor

Using an original Audi sensor in the rear section of the exhaust system translates into a number of practical benefits:

• Stable Engine Operation – correct sensor data enables the control unit to maintain an optimal fuel-air mixture.
• Support for Emission Reduction System – accurate NOx and exhaust gas temperature measurement helps maintain the efficiency of the purification system.
• Improved Diagnostics – correct readings facilitate the detection of potential faults in the exhaust system and engine control.
• Consistency with Factory Installation – the component comes from the same production line as other system elements.

Vehicle Placement and Installation Aspects

The sensor is designed for installation in the rear section of the exhaust system, in accordance with the factory configuration of the Audi Q5 FY generation. This placement allows for monitoring of exhaust gas parameters after they have passed through the key purification elements, which is crucial for the correct operation of the engine control system.

When replacing, it is recommended to:

• use appropriate tools for removing sensors and lambda sensors in the exhaust system,
• check the condition of the electrical harness and connectors for mechanical damage and corrosion,
• perform adaptation or clear errors in the control unit after installation, according to the service procedure.

Characteristics of a Used Product

The offered part is used, meaning it comes from a dismantled vehicle and has been previously operated. Such components are often chosen as a service solution when aiming to maintain the original manufacturer's specifications while optimizing repair costs.

Before installation, it is advisable to verify compatibility with your Audi Q5 FY model by using manufacturer markings and catalog data to ensure proper electrical and mechanical fit.

Selection by Part Numbers and Vehicle Electronics Compatibility

For NOx sensors and lambda sensors, matching the specific engine control unit version and exhaust system configuration is crucial. When selecting, consider:

• manufacturer markings on the sensor housing,
• compatibility with the engine control unit software version,
• the type of exhaust gas purification system used in the specific Audi Q5 FY model.

To better understand how to safely choose used modules and sensors, the following guide will be helpful: Used Automotive Electronics – How to Make Informed Choices for ECUs and Sensors.

If you are planning a comprehensive repair or upgrade of the mixture control and exhaust emission area in your Audi and need other parts from the same group, such as control lambda sensors, diagnostic lambda sensors, or additional oxygen sensors, check the available parts in the Audi Lambda Sensors and O2 Sensors category.