Audi A3 8V 2.0 TDI 150HP DCYA Engine Control ECU Kit 04L907309R Automatic

Audi A3 8V 2.0 TDI 150HP DCYA Engine Control ECU Kit is an original electronic control module designed for Audi powertrain systems with diesel engines and automatic transmissions. This specialized ECU controller is responsible for precise management of the engine unit, ensuring stable power characteristics and proper cooperation with the automatic gearbox. Choosing an original module from the Electronic control modules and controllers category allows you to maintain consistency of operating parameters with the manufacturer's factory settings.

Specifications and technical data

• SKU: 04L907309R-10
• Mark: Audi
• Condition: Used
• OEM Part Number: 04L907309R
• Substitutable numbers: 04L907309R, 04L 907 309 R, 04L906026RJ, 04L 906 026 RJ, 5Q0937084CP, 5Q0 937 084 CP
• Gearbox type: Automatic
• Part type: Engine Control Unit (ECU)
• Category: ECUs & Computer Modules

Function and role of the engine control unit in the Audi A3 8V

The engine control unit (ECU) in the Audi A3 8V is responsible for analyzing signals from sensors, calculating fuel doses, injection timing, and adjusting engine operation in real-time. In the case of the 2.0 TDI 150 HP version with an automatic transmission, coordination between the engine and the gearbox is also crucial, which affects the smoothness of gear changes, throttle response, and the overall refinement of the powertrain.

A properly selected controller allows for the preservation of factory control maps, which translates into predictable performance, correct operation of driver assistance systems, and stable exhaust emission parameters. For the user, this means repeatable vehicle behavior consistent with the manufacturer's specifications under various operating conditions.

Compatibility with the 2.0 TDI unit and automatic transmission

The presented controller has been designed to work with the 2.0 TDI 150 HP engine in the DCYA version and with an automatic transmission. Using a module dedicated to a specific powertrain configuration:

• ensures proper communication with the vehicle's onboard network,
• enables correct operation of automatic transmission modes,
• supports stable performance of safety and comfort systems dependent on the ECU,
• minimizes the risk of diagnostic errors resulting from software incompatibility.

Thanks to this, the controller can be used both when replacing a damaged module and during engine control system repairs, where compliance with the factory configuration is key.

Product characteristics and application

As an item from the Electronic control modules and controllers group, this ECU is intended for installation in Audi vehicles, particularly in the A3 8V model with the 2.0 TDI 150HP DCYA unit. The module can be used in the process of diagnosing and repairing the injection system, starting system, and systems cooperating with the engine, provided that compliance with the vehicle configuration is maintained.

Before installation, it is recommended to verify compatibility with the specific equipment version and prepare for potential software adaptation in the vehicle, in accordance with the service procedures used for Audi engine controllers.

Condition, origin, and benefits of using a used part

The offered controller is a used component, which allows for economical vehicle repair while maintaining the original manufacturer's specifications. Choosing such a solution is particularly beneficial for cars used on a daily basis, where reasonable service costs are important while maintaining compatibility with the factory electronic architecture.

Using an original module from dismantling reduces the risk of problems resulting from unsuitable replacements and facilitates service work during coding and adaptation. This is a practical solution for users who want to maintain the driving characteristics and powertrain response typical of the Audi A3 8V with a 2.0 TDI engine.

More about maintaining the Audi character and selecting modules

If you want to better understand how original electronic components affect vehicle behavior, it is worth reading the material describing the role of factory components in maintaining the Audi brand character – details can be found in the article Audi and emotions in their purest form. How do used parts help maintain the brand's DNA?.

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