Audi A3 8P Engine Control Unit 2.0L FSI Petrol 200HP Automatic + Key 8P0907115BA

Audi A3 8P Engine Control Unit 2.0L FSI Petrol 200HP Automatic + Key is an original component from the Electronic control modules and ECUs group, designed for use with the 2.0 FSI petrol engine and automatic transmission. This used control unit is suitable for configurations with key support, ensuring consistent operation of the powertrain and vehicle electronics.

Specifications and technical data

• SKU: 8P0907115BA-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8P0907115BA
• Substitutable numbers: 8P0907115BA, 8P0 907 115 BA, 0261S05898, 026 1S0 589 8, 8P0907063G, 8P0 907 063 G, 8P0907063N, 8P0 907 063 N, 8P0837220D, 8P0 837 220 D
• Fuel type: Petrol
• Gearbox type: Automatic
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Purpose and function of the control unit

The presented control unit is the central component managing the operation of the 2.0 FSI unit in the Audi A3 8P, adapted for petrol fuel and compatibility with an automatic transmission. It is responsible for precise control of engine operating parameters, such as fuel dosage or ignition timing, as well as communication with other vehicle modules, which translates into stable powertrain performance. Thanks to its integration with the key support system, the control unit works with the vehicle's factory security features, which is essential when matching it to a specific car configuration. This solution allows for maintaining compliance with the original Audi electronic architecture, minimizing the risk of communication issues between modules.

Benefits of using an original module

Choosing a control unit from the Electronic control modules and ECUs group originating from an Audi ensures the preservation of factory engine operating parameters and predictable automatic transmission behavior. The original module is designed for a specific vehicle platform, which means it:

• maintains compatibility with the vehicle's electrical installation and communication bus,
• facilitates configuration and potential programming at a specialized service center,
• reduces the risk of errors resulting from incompatible aftermarket replacements. A used control unit can be an attractive cost-effective solution while maintaining original build quality and fitment for the specific engine and transmission version.

Application in a petrol system with an automatic transmission

The module has been prepared for operation in a configuration with an FSI petrol engine and an automatic transmission, which is significant when selecting the appropriate control unit for a specific version of the Audi A3 8P. Proper matching to the fuel type and transmission type allows for maintaining:

• smooth gear shifting thanks to correct data exchange between the engine control unit and the transmission control unit,
• stable idle speed and predictable throttle response,
• consistent operation of driver assistance systems that depend on engine operating parameters. For workshops and users, this means the ability to restore full functionality of the powertrain while maintaining the vehicle's original operating logic.

Condition and characteristics of the used product

The offered control unit is a used item, which in practice allows for combining reasonable cost with the preservation of original Audi specifications. Such modules are frequently chosen for engine electronics repairs when the goal is to match a specific model version without the need to purchase expensive new components. Before installation, it is recommended to verify compatibility with your vehicle and consider the potential need for adaptation or programming at a specialized service center.

Selecting a used control unit and technical knowledge

When choosing a used engine control unit, it is crucial to match it to the fuel type, transmission type, and vehicle electronic architecture. To better understand when it is worth opting for used modules and how to select them safely, it is worth reading our guide: The second life of electronics – when is it worth choosing used engine control units, comfort modules, and parking sensors?. If you are planning a comprehensive repair or upgrade of the engine electronics area in your Audi and need other components from the same group, such as engine control units, transmission management modules, or auxiliary system controllers, check out the available parts in the Audi Electronic control modules and ECUs category.