Audi A4 B8 A5 8T 2.0 TFSI CDNC Quattro 211HP Engine Control Unit ECU 8K5907115

Audi A4 B8 A5 8T 2.0 TFSI CDNC Quattro 211HP Engine Control Unit ECU is a factory-original engine management controller designed for a petrol engine paired with an automatic transmission. This used module from the Electronic control modules and controllers category allows for professional repair of the engine management system without the need for costly replacement of the entire powertrain, while maintaining the original performance characteristics of the 2.0 TFSI CDNC Quattro unit.

Specifications and technical data

• SKU: 8K5907115
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K5907115
• Substitutable numbers: 8K5907115, 8K5 907 115
• Fuel type: Petrol
• Gearbox type: Automatic
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Purpose and function of the engine controller

The presented engine controller is dedicated to Audi A4 B8 and Audi A5 8T models with the 2.0 TFSI CDNC 211 HP engine and Quattro drive, in a configuration with an automatic transmission. The module is responsible for precise control of the petrol engine's operation, including fuel injection, ignition, and communication with other electronic systems of the vehicle. Using an original ECU ensures the preservation of factory control maps and consistency of communication within the vehicle's CAN network.

Benefits of using an original ECU

Using an original engine controller in an Audi with a 2.0 TFSI CDNC engine ensures:

• preservation of factory engine performance parameters and power characteristics,
• proper cooperation with the automatic transmission and Quattro drive,
• consistency with the existing electronic architecture of the vehicle,
• possibility of adaptation and coding in accordance with Audi service procedures.

For users looking for a service solution with high compatibility, a used controller from the same model family is often the most rational choice, allowing for cost reduction while maintaining high-quality powertrain performance.

Integration with the powertrain and vehicle electronics

The engine controller works with many key vehicle systems, such as the fuel injection system, ignition, traction control systems, and modules responsible for the operation of the automatic transmission. A properly selected controller for the 2.0 TFSI CDNC petrol engine enables:

• stable operation of the powertrain across the full load range,
• proper communication with other controllers in the vehicle network,
• diagnostics in accordance with factory Audi standards,
• maintenance of the safety and engine protection strategies intended by the manufacturer.

Thanks to this solution, it is possible to restore full functionality of the engine management system after a failure of the previous module, without interfering with the mechanics of the powertrain.

Using a used part in professional service

A used engine controller from this series is widely used by both independent workshops and specialized automotive electronics services. This allows for economical repair of vehicles with a petrol engine and automatic transmission, while maintaining high compatibility with the factory installation. Proper selection of the controller for a specific Audi A4 B8 or A5 8T configuration is crucial for the correct operation of the entire powertrain.

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 controllers, engine management modules, or control systems, check the available parts in the Audi electronic control modules and controllers category.

Technical support and electronics selection

When selecting controllers and electronic modules, expert materials regarding diagnostics and repair of engine management systems can be helpful. In the context of working with used modules, it is worth reading the guide describing practical aspects of repair and configuration of controllers in premium class vehicles – you can find them in the article Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using dismantled parts?, which discusses universal principles of working with automotive electronics, also useful when servicing engine controllers in other brands.