Audi S3 8V 2.0 TFSI CJXC 300HP Quattro Engine Control ECU 06K907425A Manual

The Audi S3 8V 2.0 TFSI CJXC 300HP Quattro Engine Computer ECU is a specialized, factory-original control unit designed to manage the powertrain in the sporty S3 version. As a component within the Electronic Control Modules and Controllers group, it is responsible for precise management of the gasoline engine's operation, ensuring stable performance and proper interaction with other vehicle systems. This is a solution for users who want to restore full powertrain functionality while preserving the character of the original Audi configuration.

Specifications and technical data

• SKU: 06K907425A
• Mark: Audi
• Condition: Used
• OEM Part Number: 06K907425A
• Substitutable numbers: 06K907425A, 06K 907 425 A, 8V0906259, 8V0 906 259, 5WA12009
• Fuel type: Petrol
• Gearbox type: Manual
• ECU type: Engine Control Unit
• Category: ECUs & Computer Modules

Intended Use and Function of the Engine Controller

The presented Engine Control Unit is designed to work with the 2.0 TFSI gasoline engine in the Audi S3 8V with Quattro all-wheel drive and a manual transmission. The controller is responsible for key processes such as fuel delivery, ignition timing, boost control, and monitoring the engine's operating parameters under various load conditions.

Thanks to its dedicated software, the ECU ensures seamless operation with the drivetrain, safety systems, and onboard electronics, which translates into predictable throttle response, stable idle operation, and proper interaction with the vehicle's diagnostic systems.

Benefits of Using an Original ECU in the Audi S3 8V

Using the original engine computer in the Audi S3 8V allows for the preservation of the factory operating characteristics of the 2.0 TFSI CJXC engine. In practice, this means:

• correct cooperation with the manual gearbox and Quattro drive,
• appropriate maps for the gasoline engine, tailored to the specifics of the S3 version,
• compatibility with factory diagnostic and service systems,
• consistency with other modules from the Electronic Control Modules and Controllers group.

For the user, this means reduced risk of communication errors between modules, stable engine operation, and easier servicing, especially in the case of advanced diagnostics or post-installation adaptation.

Technical Characteristics in the Context of the Powertrain

The engine computer designed for the Audi S3 8V works with the gasoline engine and manual transmission, which is important when selecting the appropriate controller for a specific car configuration. Fuel type: gasoline and transmission type: manual determine the maps and control algorithms used, making the selection of the ECU for this S3 version crucial for the proper operation of the entire powertrain.

As a component in the Electronic Control Modules and Controllers category, the ECU is the central point for managing engine operating parameters, interacting with sensors, actuators, and other controllers in the vehicle. Proper configuration and matching to the specific model version reduces the need for additional installation modifications.

Condition, Application, and Installation Aspects

The offered engine computer is a used part, allowing for an economical restoration of the control system's functionality in the Audi S3 8V while maintaining the original manufacturer's specifications. This type of controller is most commonly used for:

• damage to the factory ECU due to electrical failure or moisture,
• replacement after unsuccessful software modifications,
• restoring the completeness of the vehicle's electrical system after accident repairs.

Before installation, it is recommended to verify compatibility with the specific car configuration and prepare for adaptation in the vehicle (coding, potential immobilizer matching) at a specialized service center. This approach minimizes the risk of errors and ensures stable controller operation in the long term.

Expanding Knowledge and Selecting Other Audi Modules

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other parts from the same group, such as controllers, drive management modules, or engine control systems, check the available parts in the Audi Electronic Control Modules and Controllers category.

To better understand how original electronic modules influence the driving character and behavior of a car, it is worth reading a guide – check out the article Audi and Pure Emotion. How Used Parts Help Maintain the Brand's DNA?, which describes how appropriately selected components allow for the preservation of the factory characteristics of Audi cars.