Audi A1 8X 1.4 TFSI CZCA 125HP Engine ECU Kit Lock + Key 04E907309AC Manual

The Audi A1 8X 1.4 TFSI CZCA 125HP Engine ECU Kit Lock + Key Manual is a complete engine control kit designed for the 1.4 TFSI CZCA gasoline engine with 125 HP and a manual transmission. The kit includes the electronic engine control module along with immobilizer components and a key, which facilitates maintaining the security system's integrity and restoring proper powertrain operation. This solution is dedicated to users who want to restore the factory configuration in an organized and technically correct manner.

Specifications and technical data

• SKU: 04E907309AC
• Mark: Audi
• Condition: Used
• OEM Part Number: 04E907309AC
• Substitutable numbers: 04E907309AC, 04E 907 309 AC, 0261S09387, 0 261 S09 387
• Fuel type: Petrol
• Gearbox type: Manual
• ECU type: Engine Control Unit
• Category: ECUs & Computer Modules

Purpose and Function of the ECU Kit

The presented kit belongs to the Electronic Control Modules and Controllers category and plays a key role in managing the operation of the 1.4 TFSI CZCA gasoline engine in the Audi A1 8X. The Engine Control Unit (ECU) is responsible for controlling combustion parameters, fuel dosage, ignition, and cooperation with sensors and actuators, which translates into a stable 125 HP output, smooth operation, and compliance with factory control maps.

The combination of the controller with the lock and key set allows for maintaining the immobilizer system's integrity, minimizing the risk of starting authorization problems after module replacement. This makes the kit particularly useful for replacing a damaged ECU or during comprehensive engine control system repairs.

Compatibility with 1.4 TFSI CZCA Engine and Manual Transmission

The product is designed for the 1.4 TFSI gasoline engine, designated CZCA, with a power output of 125 HP, working in conjunction with a manual transmission. This configuration ensures compatibility with the vehicle's factory settings, which is important for both correct engine operation and the functioning of onboard systems related to the ECU.

Choosing the right ECU kit with a lock and key is particularly important for modern TFSI engines, where the engine controller is closely linked to the security electronics. Using a complete kit reduces the need for deep software intervention and simplifies the adaptation process in the vehicle.

Benefits of Using a Complete Engine Controller Kit

Using a complete ECU kit with a lock and key for the Audi A1 8X 1.4 TFSI CZCA offers a range of practical technical benefits:

• Integrity of the immobilizer system and engine controller,
• Organized process for replacing a damaged control module,
• Preservation of the operating characteristics of the 1.4 TFSI CZCA 125 HP engine,
• Reduced risk of communication errors between electronic modules.

For workshops specializing in the Audi brand and for users who care about maintaining the car's factory character, such a kit is a practical solution that allows for technically correct repair of the engine control system.

Characteristics as a Used Control Module

The offered ECU, lock, and key set is a used item, meaning it comes from a dismantled vehicle and may show signs of wear typical for such components. At the same time, it retains the functionality required for further operation in another Audi A1 8X unit, provided it is installed and configured correctly.

When installing a used engine controller, it is recommended that the work be performed by a workshop experienced with Audi electronics, which will allow for proper adaptation of the kit to the specific car and verification of the correct operation of all functions after installation.

More About Audi Electronics and Maintaining Brand Character

For those who want to better understand how original electronic modules, such as engine controllers or multimedia systems, influence the car's character, we recommend an article on our blog: Audi and Pure Emotion. How Used Parts Help Maintain the Brand's DNA?. There you will find practical information on how appropriately selected used components help maintain the consistency of the driving experience and vehicle functionality.

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 controllers, security modules, or drive management units, check the available parts in the Audi Electronic Control Modules and Controllers category.