Audi A3 8P 1.2 TFSI CBZB 105HP Engine Control Unit ECU Kit Lock Key 03F906070FE

Audi A3 8P 1.2 TFSI CBZB 105HP Engine Control Unit ECU Kit Lock Key is a set from the Electronic control modules and controllers category, designed for precise management of the powertrain in the petrol version with a manual transmission. The kit has been designed as a factory solution for the 1.2 TFSI CBZB engine, ensuring consistent operation of all related control systems. It is a practical choice for users and workshops looking for a proven, original solution for repairing or replacing the engine control unit.

Specifications and technical data

• SKU: 03F906070FE
• Mark: Audi
• Condition: Used
• OEM Part Number: 03F906070FE
• Substitutable numbers: 1K0905851B, 1K0 905 851 B, 03F906070FE, 03F 906 070 FE
• Fuel type: Petrol
• Gearbox type: Manual
• Part type: Engine Control Unit (ECU)
• ECU type: Engine Control Unit
• Category: ECUs & Computer Modules

Purpose and function of the controller

The presented engine control unit kit is dedicated to the 1.2 TFSI CBZB petrol engine with 105 HP in the Audi A3 8P model with a manual transmission. As an Engine Control Unit, it is responsible for coordinating key engine operating parameters, such as fuel dosage, ignition timing, or response to sensor signals, which translates into stable engine performance and correct interaction with the vehicle's other electronics. Selecting the correct controller is particularly important in the case of modern TFSI engines, where the software and ECU configuration are strictly linked to a specific engine version, fuel type, and transmission type. Using the appropriate kit helps reduce compatibility issues and facilitates the adaptation process in the vehicle.

Benefits of using a complete ECU kit

Using a complete engine control unit kit in an Audi A3 8P 1.2 TFSI CBZB simplifies service work and reduces the risk of communication errors between modules. In practice, this means:

• consistency of the engine electronics configuration with the rest of the vehicle's installation,
• easier adaptation in the vehicle after installation,
• preservation of the factory logic for powertrain control,
• the ability to restore proper system operation after the failure of the previous controller. For workshops specializing in the Audi brand, such a kit is a convenient solution that allows for shorter diagnostic and installation times, as well as reducing the need for additional installation modifications.

Technical characteristics and compatibility

As an element from the Electronic control modules and controllers category, this ECU kit has been developed for use with a petrol fuel system and a manual transmission. The controller is configured for the specifics of the 1.2 TFSI CBZB engine, which is important for both performance and engine durability. The product has an assigned OEM part number and interchangeable numbers, which facilitates verification of compatibility with a specific vehicle configuration. When selecting, it is always recommended to compare the data with service documentation or the numbers of the removed part to ensure full compatibility with the car's electrical installation and software.

Product condition and service application

The engine control unit kit is offered as a used item, making it an attractive cost alternative to new components while maintaining the factory design and purpose. This type of solution is often chosen by professional workshops and users who want to restore vehicle performance on a reasonable budget while using original Audi components. Before installation, a standard diagnostic procedure is recommended, as well as appropriate adaptation in the vehicle according to the manufacturer's procedures, if necessary. A properly selected and configured controller allows for stable engine operation and correct cooperation with other electronic modules.

Expansion of the control system and additional information

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 additional control modules, engine management units, or related auxiliary controllers, check the available parts in the Audi electronic control modules and controllers category. For those interested in a broader context of control module operation, ECU integration with other vehicle systems, and practical tips on using dismantled parts, the article describing the maintenance and repair of controllers in modern premium cars may be helpful – details can be found in the entry Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using dismantled parts?.