Audi A6 C7 A7 4G Exhaust Lambda Probe Oxygen Sensor 2.8 TFSI CHVA 06E906265AA

Audi A6 C7 A7 4G Exhaust Lambda Probe Oxygen Sensor 2.8 TFSI CHVA is a component from the Lambda probes and O2 sensors group, designed for the exhaust system of the 2.8 TFSI petrol engine. It is responsible for the precise measurement of exhaust gas composition, which allows the engine control unit to properly dose fuel and maintain stable operation of the power unit.

Specifications and technical data

• SKU: 06E906265AA
• Mark: Audi
• Condition: Used
• OEM Part Number: 06E906265AA
• Substitutable numbers: 06E906265AA, 06E 906 265 AA
• Fuel type: Petrol
• Category: Oxygen Sensors

Purpose and function in the exhaust system

The presented exhaust lambda probe works in the petrol engine supply system, monitoring the oxygen content in the exhaust gases. Thanks to this, the controller can correct the mixture composition, keeping it in the optimal range for the 2.8 TFSI CHVA unit, which translates into proper operating culture, reduced fuel consumption, and lower emissions.

The element belongs to the group of components responsible for controlling the combustion process, which is why its proper operation is important for, among other things:

• idle speed stability,
• throttle response and acceleration dynamics,
• efficiency of the catalytic converter and exhaust gas purification system.

Benefits of using an original Audi probe

The lambda probe dedicated to Audi A6 C7 and A7 4G models with the 2.8 TFSI CHVA engine ensures proper cooperation with the factory engine control unit. The appropriate sensor characteristics allow avoiding problems typical of replacements with incorrect parameters, such as controller errors, uneven operation, or increased fuel consumption.

The main advantages of using the correct O2 sensor in this system include:

• maintaining correct fuel trims across the entire load range,
• better repeatability of exhaust gas composition measurement,
• reducing the risk of the MIL light turning on due to mixture or catalytic converter issues.

Product characteristics and condition

The offered lambda probe belongs to the group of exhaust system measurement electronics components. As a used component, it comes from disassembly and is intended for users looking for an economical solution while maintaining compliance with Audi's factory specifications. This type of sensor is particularly important in petrol engines with direct injection, where the controller intensively uses information about the exhaust gas composition.

Selecting a probe for a specific vehicle should be based on vehicle identification data and part numbers to ensure full compatibility with the wiring harness, mounting thread, and controller software.

Installation and operational tips

When replacing a lambda probe in the exhaust system, it is recommended to:

• check the condition of the thread in the manifold or exhaust pipe,
• inspect the electrical harness for abrasions and contact corrosion,
• clear adaptations and errors in the controller after installation so that the new sensor operates under correct conditions.

A properly selected and installed lambda probe helps maintain stable operating parameters of the 2.8 TFSI CHVA unit, which is important both for engine durability and for meeting exhaust emission standards.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as oxygen sensors, control probes, or diagnostic probes, check the available parts in the Audi Lambda probes and O2 sensors category.

To better plan the use of used sensors and electronic components in your car, it is worth reading the guide on selecting and installing such components – detailed information can be found in the article Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.