Audi A4 B7 3.2 FSI Quattro AUK 255HP Engine Control Unit ECU 8E0907559H Manual

Audi A4 B7 3.2 FSI Quattro AUK 255HP Engine Control Unit ECU is a specialized electronic control module designed for a petrol engine paired with a manual transmission. It is responsible for precise engine management, ensuring stable power characteristics, correct fuel dosing, and consistent operation of auxiliary systems. By maintaining the factory control logic, this ECU allows you to preserve the proper operating characteristics of the Audi powertrain.

Specifications and technical data

• SKU: 8E0907559H
• Mark: Audi
• Condition: Used
• OEM Part Number: 8E0907559H
• Substitutable numbers: 8E0907559H, 8E0 907 559 H, 8E0907559, 8E0 907 559, 5WP45132
• Fuel type: Petrol
• Gearbox type: Manual
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Purpose and function of the ECU

The engine control unit in the version dedicated to Audi A4 B7 3.2 FSI Quattro AUK 255HP is the central component of the powertrain management system. It analyzes signals from sensors, controls fuel injection, ignition, and interaction with auxiliary equipment, ensuring the engine operates under stable conditions while maintaining appropriate dynamics and smooth performance. Using a version designed for a manual transmission allows for the retention of correct load maps and throttle response tailored to manual gear shifting.

Benefits of using an original module

Selecting an ECU from the Electronic control modules and ECUs group that matches the specific engine and drivetrain configuration helps avoid issues with starting, communication errors in the vehicle network, and improper operation of onboard systems. The correct module ensures:

• consistent operation with the vehicle's factory software,
• proper interaction with the petrol injection system,
• correct response to loads characteristic of the Quattro drivetrain,
• stable operating parameters during dynamic driving.

Selection based on fuel type and transmission

The presented ECU is prepared for use with a petrol engine, which is crucial for ignition maps, fuel dosage, and engine protection strategies. At the same time, the module's design and software are adapted for a manual transmission, ensuring that the control logic for RPM, torque, and gear shift response remains consistent with Audi's factory specifications.

Application in service and diagnostics

Replacing the engine control unit is a typical step in advanced powertrain repair, especially in cases of electronic failure or vehicle network communication issues. Using the appropriate module facilitates diagnostic work, allows for correct coding and adaptation, and restores full functionality of systems related to engine operation. This solution is particularly useful for professional repairs where compliance with factory specifications is essential.

Audi electronic control modules and ECUs

If you are planning a comprehensive repair or upgrade of your Audi's engine area and need other components from the same group, such as engine management modules, auxiliary system controllers, or electronic powertrain management units, check out the available parts in the Audi electronic control modules and ECUs category.

How to preserve the Audi character with used parts

When choosing a used engine control unit, it is worth paying attention to its origin and compatibility with the specific engine version to maintain powertrain consistency and the characteristic driving properties of an Audi. You can find more about how properly selected electronic components and interior equipment help maintain the brand's factory DNA in the article Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?.