Audi A3 8P Engine Control Module ECU 2.0 TDI CBAB 140HP Kit 03L906022MA

Audi A3 8P Engine Control Unit 2.0 TDI CBAB 140HP Automatic Kit 03L906022MA is an original part from the Electronic Control Modules and Controllers group, designed to work with the 2.0 TDI CBAB engine producing 140 HP in the automatic transmission version. This used control unit kit allows for the restoration of correct powertrain operation while maintaining the factory logic of Audi electronics.

Specifications and technical data

• SKU: 03L906022MA-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 03L906022MA
• Substitutable numbers: 03L906022MA, 03L 906 022 MA, 03L906022BQ, 03L 906 022 BQ, 0281015824, 0 281 015 824, 8P0 907 063 A, 8P0907063A, 1K0 905 841, 1K0905841
• Gearbox type: Automatic
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Purpose and Function of the Controller

The engine control unit in the Audi A3 8P is responsible for precise management of the 2.0 TDI CBAB engine's operation, including fuel injection, turbocharger control, and cooperation with engine peripherals. The version dedicated to automatic transmissions is configured for specific gear shifting strategies and torque management, which translates into smooth acceleration and stable drive performance under various load conditions.

By using an original module from the same controller family, software consistency with the vehicle's electrical architecture is maintained, minimizing the risk of CAN network communication errors and compatibility issues.

Compatibility and Replacement Numbers

The presented control unit belongs to a group of components with an extensive list of interchangeable numbers, facilitating the selection of the appropriate module for repairs and upgrades. The presence of multiple references in the technical specification means that the control unit may appear in various Audi A3 8P equipment variants, while maintaining the same base function for the 2.0 TDI CBAB engine in the automatic version.

Before purchasing, it is recommended to compare your vehicle's data (including engine designation, gearbox type, and installation configuration) with the information in the specifications to ensure full compatibility and avoid the need for additional programming beyond standard adaptation.

Integration with Powertrain and Automatic Transmission

The engine control unit designed for cooperation with an automatic transmission is factory-prepared for data exchange with the transmission control module. This enables:

• coordination of torque during gear changes,
• stabilization of idle speed when starting and stopping the vehicle,
• adaptation of engine performance characteristics to the driving modes available in the specific car configuration.

This linkage between engine and transmission electronics translates into predictable vehicle behavior, correct throttle response, and reduced jerking during gear changes.

Benefits of Using an Original Audi Module

Choosing an original Audi control unit ensures software consistency with other modules in the vehicle, such as comfort, safety, or infotainment systems. The factory electronics architecture reduces the risk of conflicts between controllers, which is particularly important in modern installations with multiple ECUs.

A used OEM part also offers a sensible compromise between repair cost and maintaining the driving character typical of the Audi A3 8P. A correctly selected and functional control unit can restore stable engine operation, proper load response, and predictable automatic transmission performance.

Condition, Verification, and Service Application

The offered control unit is a used item, which in workshop practice often represents an effective solution for resolving engine electronics-related faults. Before installation, the standard diagnostic procedure and configuration adaptation to the specific vehicle instance, according to the manufacturer's guidelines, are recommended.

Due to the nature of the module's work within the powertrain, installation should be performed by a service center with access to appropriate diagnostic software, enabling adaptation and potential coding of the control unit to the specific Audi A3 8P.

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 control modules, ECUs, or auxiliary controllers, check the available parts in the Audi Electronic Control Modules and Controllers category.

To better understand how original used components affect vehicle behavior and help maintain the brand's character, it is worth reading the article Audi and Pure Emotion. How Used Parts Help Maintain the Brand's DNA?, which describes the importance of factory modules, such as controllers or multimedia system components, in maintaining the overall vehicle's integrity.