Audi A3 8V 2.0 TDI Quattro 184HP DGCA Engine ECU Unit 04L907309R Automatic

Audi A3 8V 2.0 TDI Quattro 184HP DGCA Engine ECU Unit is a specialized component from the Electronic control modules and ECUs category, designed for use in diesel units with Quattro drive and an automatic transmission. It is responsible for the precise management of the diesel engine, ensuring stable parameters, proper communication with other vehicle systems, and the possibility of professional diagnostics.

Specifications and technical data

• SKU: 04L907309R
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L907309R
• Substitutable numbers: 04L907309R, 04L 907 309 R, 0281031066, 0 281 031 066
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: ECUs & Computer Modules

Purpose and function of the ECU

The presented ECU is dedicated to the drivetrain of the Audi A3 8V generation with a 2.0 TDI engine producing 184 HP, Quattro drive, and an automatic transmission. As the central engine control unit, the module manages, among other things, fuel injection, the operation of auxiliary systems, and communication with other controllers in the vehicle, which translates into proper engine performance and predictable response to load.

Thanks to a design optimized for a diesel engine, the ECU works with equipment typical of modern diesel units, enabling the maintenance of correct operating parameters under various operating conditions.

Compatibility and technical parameters

The module belongs to the Electronic control modules and ECUs group, which means it has been designed to work within the complex electrical architecture of the vehicle, using communication buses used in modern Audi models. Adaptation to the diesel engine and automatic transmission allows for proper cooperation with the drivetrain, safety systems, and comfort functions.

In practice, this means that after proper matching and configuration, the ECU can restore full functionality of the drivetrain, as well as enable correct readings and adaptations during computer diagnostics.

Practical application and benefits of installation

The use of this ECU is particularly justified in situations where the existing module has suffered electronic damage, has communication problems within the vehicle network, or generates errors that prevent the engine from working properly. Choosing an original solution dedicated to Audi allows you to maintain software consistency and operating parameters in line with the manufacturer's factory specifications.

Key benefits of installation include:

• restoration of proper operation of the 2.0 TDI unit in a Quattro configuration with an automatic transmission,
• possibility of further diagnostics and adaptation using professional testers,
• maintaining compatibility with factory safety and comfort systems.

Characteristics of the used product

The offered ECU is a second-hand component, which in practice allows for reducing repair costs while maintaining the original manufacturer's specification. In the case of automotive electronics, this solution is often chosen by workshops specializing in the Audi brand and users looking for a technically matched module for a specific engine and transmission configuration.

Before installation, standard procedures related to programming, potential immobilizer matching, and configuration for a specific vehicle must be taken into account, in accordance with service practices for engine control units.

More solutions for Audi electronics and technical advice

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

Before choosing a used ECU, it is worth familiarizing yourself with the principles of selecting and verifying vehicle electronics – practical tips on when it is worth reaching for second-hand modules and how to assess their suitability can be found in the article The second life of electronics – when is it worth choosing used engine ECUs, comfort modules, and parking sensors?.