Audi RS3 8V 2.5 TFSI DNWA DAZA Lambda Sensor Pre Catalyst 6 Pin 07K906265

Audi RS3 8V 2.5 TFSI DNWA DAZA Lambda Sensor Pre Catalyst 6 Pin is a component from the Lambda sensors and O2 sensors group, designed for precise monitoring of the air-fuel mixture composition in high-performance 2.5 TFSI engines. A properly selected lambda sensor helps maintain stable engine operating parameters, supports the correct functioning of the fuel injection system, and reduces exhaust emissions.

Specifications and technical data

• SKU: 07K906265
• Mark: Audi
• Condition: Used
• OEM Part Number: 07K906265
• Substitutable numbers: 07K906265, 07K 906 265
• Category: Oxygen Sensors

Purpose and function in the exhaust system

The described lambda sensor has been designed to work with 2.5 TFSI units in the Audi RS3 8V model, in versions marked with DNWA and DAZA codes. The sensor measures the oxygen content in the exhaust gases and sends a signal to the engine control unit, which adjusts the fuel dose accordingly. This makes it possible to maintain an optimal mixture composition, which translates into stable power, correct throttle response, and fuel consumption control.

The configuration with a 6-pin connector allows for the transmission of detailed information to the control system, which is particularly important in modern, turbocharged gasoline engines with high specific power.

Construction and performance parameters

The lambda sensor belongs to a group of high-sensitivity measuring elements operating in the demanding environment of the exhaust system. The sensor's construction is adapted to high temperatures and variable operating conditions typical for the 2.5 TFSI units used in the Audi RS3 8V. The applied solutions allow for:

• accurate reading of exhaust gas composition across a wide range of engine loads,
• stable operation under dynamic driving conditions,
• compatibility with the factory Audi engine control unit.

As a result, the sensor supports the maintenance of the correct air-to-fuel ratio, which is important for both performance and the durability of the power unit.

Application in Audi RS3 8V 2.5 TFSI DNWA / DAZA

Audi RS3 8V 2.5 TFSI DNWA DAZA Lambda Sensor Pre Catalyst 6 Pin is intended for operation in the specific exhaust and engine control configuration of the RS3 8V model. Proper matching of the sensor to the engine code is crucial for:

• correct mixture regulation across the entire rev range,
• maintaining factory ignition and injection maps,
• correct operation of OBD diagnostic systems.

In the case of DNWA and DAZA units, which are characterized by high power and high thermal load, the proper selection of the lambda sensor has a direct impact on engine refinement and operational safety during intensive use.

Characteristics of the used component

The offered sensor comes from the used Audi parts segment, which allows for an economical repair or replacement of the element in the exhaust system. Choosing a used lambda sensor can be a beneficial solution in situations where you want to reduce service costs while maintaining compliance with the vehicle's factory specifications. This type of component is particularly attractive for cars used both daily and in more dynamic applications, where efficient operation of the engine control system is essential.

To better understand when it is worth choosing used electronic and measuring components, including sensors used in modern cars, it is worth reading our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?.

Expanding the measurement system in Audi

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 additional probes, O2 sensors, or related exhaust sensors, check out the available parts in the Audi lambda sensors and O2 sensors category.