Audi A3 8P Engine Control ECU 125HP 1.4 TSI Petrol CAXC Automatic 03C906016G Kit

Audi A3 8P Engine Control ECU 125HP 1.4 TSI Petrol CAXC Automatic Kit is a specialized component from the Electronic control modules and ECUs group, designed to work with the 1.4 TSI petrol engine and an automatic transmission. It is responsible for precise management of engine and transmission operation, which translates into stable performance, predictable throttle response, and proper communication with other vehicle systems.

Specifications and technical data

• SKU: 03C906016G-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 03C906016G
• Substitutable numbers: 0261S04653, 0 261 S04 653, 03C906016F, 03C 906 016 F, 03C906016G, 03C 906 016 G
• Fuel type: Petrol
• Gearbox type: Automatic
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Purpose and function of the ECU

The presented ECU kit is designed for the 125 HP 1.4 TSI petrol engine in the Audi A3 8P, working in conjunction with an automatic transmission. The module plays a key role in controlling engine operating parameters, such as fuel dosage, ignition timing, and gear shift strategy, ensuring consistent operation of the powertrain. Thanks to its dedicated fitment for a specific engine-transmission configuration, the ECU allows for maintaining driving characteristics in line with the manufacturer's specifications, which is particularly important during repairs after electronic failure or when replacing a damaged module.

Benefits of using an original Audi module

Using an original ECU from the Audi family allows for maintaining software consistency and operating parameters in line with the vehicle's factory settings. This translates into:

• stable engine operation across the full load range,
• proper cooperation with the automatic transmission,
• preservation of factory safety and component protection strategies,
• easier diagnostics using standard service tools. For the user, this means predictable vehicle behavior, the absence of unwanted errors in onboard systems, and the possibility of further service maintenance in accordance with the manufacturer's procedures.

Technical characteristics and compatibility

The ECU has been prepared for use with a petrol fuel system and an automatic transmission, which is crucial when selecting the appropriate module for a specific version of the Audi A3 8P. Proper matching of fuel type and transmission type minimizes the risk of communication problems in the CAN network, gear shifting control errors, or improper operation of driver assistance systems. The product belongs to the Electronic control modules and ECUs group, which means it is a central element for many processes in the vehicle – from starting, through driving in various conditions, to diagnostic and adaptation procedures.

Application in service and repairs

This ECU kit is suitable both for standard replacement of a damaged module and for more complex powertrain repairs where it is necessary to restore full functionality of the engine electronics. A properly selected ECU allows for reducing diagnostic time, facilitates adaptation in the vehicle, and helps avoid problems with incompatible software. In workshop practice, this means faster repair completion, fewer customer returns due to control errors, and the possibility of further optimization of the powertrain within factory parameters.

Expansion of the control system in Audi

If you are planning a comprehensive repair or upgrade of the powertrain control area in your Audi and need other elements from the same group, such as additional control modules, auxiliary system controllers, or comfort management units, check the available parts in the Audi electronic control modules and ECUs category. To better understand how properly selected used electronic components help maintain driving characteristics and system consistency in your car, it is worth reading the article on our blog: Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?.