Audi A4 B8 3.0 TDI 240HP CAPA Quattro Engine ECU Kit 8K0907401F Manual

Audi A4 B8 3.0 TDI 240HP CAPA Quattro Engine ECU Kit is a set from the Electronic control modules and controllers group, designed for precise management of the diesel power unit with all-wheel drive. The kit has been engineered for a specific engine and transmission configuration, which promotes stable operating parameters, correct fuel dosing, and consistent cooperation with the vehicle's other electronic systems.

Specifications and technical data

• SKU: 8K0907401F-2
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0907401F
• Substitutable numbers: 8K0907401F, 8K0 907 401 F, 0281014725, 0 281 014 725, 8K0909131C, 8K0905852C, 8K0 905 852 C
• Fuel type: Diesel
• Gearbox type: Manual
• ECU type: Engine Control Unit
• Category: ECUs & Computer Modules

Purpose and technical configuration

The presented engine computer kit is dedicated to the CAPA diesel unit, working in conjunction with the Quattro drive and manual transmission. It is responsible for coordinating key engine operating parameters, such as injection control, boost control, and supervision of safety systems, which has a direct impact on performance, dynamics, and fuel consumption.

As an Engine Control Unit, the kit integrates with the vehicle's bus, communicating with other controllers and safety modules. This makes it possible to maintain consistent operating logic for the entire drivetrain, which is important both for daily use and during service diagnostics.

ECU operating characteristics in a Diesel engine

In a diesel engine, the engine computer is responsible for precise control of the fuel dose and injection timing, which is crucial for achieving the appropriate torque and limiting exhaust emissions. The kit prepared for this unit works with high-pressure equipment, temperature, pressure, and flow sensors, ensuring stable operating conditions across the full load range.

Thanks to its matching to the specific Quattro drive and manual transmission configuration, the controller takes into account the drivetrain characteristics, which translates into a predictable throttle response and consistent operation of driver assistance systems.

Condition, origin, and benefits of use

The kit comes from an Audi vehicle and is a secondary market component, which allows for economical repair or restoration of factory control logic without the need for new components. A used ECU module, selected for the correct fuel type and transmission, allows for the preservation of the engine's original operating characteristics, which is important for unit durability and driving comfort.

In practice, using such a kit allows for:

• restoring correct starting and stable idle speed,
• restoring factory control maps for the diesel engine,
• maintaining compatibility with factory diagnostic systems,
• reducing the risk of errors resulting from controller mismatch.

Integration with vehicle electronics

As an element from the Electronic control modules and controllers group, the engine computer works with numerous sensors and other controllers in the vehicle. A correctly selected kit facilitates adaptation in the vehicle, as well as subsequent maintenance using standard diagnostic tools used in workshops specializing in the Audi brand.

Proper ECU configuration is important not only for performance but also for the mechanical protection of the power unit, as the controller monitors limit parameters, such as boost pressure or thermal load, reacting if necessary by limiting power or recording appropriate errors in memory.

More about the brand's character and used components

If you want to better understand how to maintain the driving character and consistency of the electronic system in your Audi when using secondary market components, it is worth reading the article on our blog: Audi and pure emotion – how used parts help maintain the brand's DNA. You will find practical tips there regarding the selection of original elements, such as control modules or interior equipment.

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 controllers, power unit management modules, or systems working with the ECU, check the available parts in the Audi electronic control modules and controllers category.