Audi A4 B8 S5 8T Parking Brake Control Unit Electric Brake Module 8K0907801F

Visual condition of the part

The product shows signs of use visible in the photos.

Audi A4 B8 S5 8T Parking Brake Control Unit Electric Brake Module is an original component from the Electronic control modules and controllers group, designed to work with the electric parking brake in selected Audi models. It enables precise control of the braking force, integration with safety systems, and stable operation of the system during daily use. This is a solution for users who want to restore full functionality of the parking brake while maintaining factory operating logic.

Specifications and technical data

• SKU: 8K0907801F-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0907801F
• Substitutable numbers: 8K0907801F, 8K0 907 801 F
• Part type: Drive Unit Controllers
• Category: ECUs & Computer Modules

Purpose and function of the module

The presented controller is the component responsible for operating the electric parking brake in Audi A4 B8 generation and Audi S5 8T models. As a part from the Electronic control modules and controllers group, it manages the operation of the brake actuators, communicates with other controllers in the vehicle, and supervises the process of engaging and releasing the brake under various driving conditions.

The module works with the vehicle's communication bus, allowing it to respond to signals from the ABS/ESP system, transmission, or powertrain. This enables functions such as automatic brake engagement after turning off the ignition or controlled release when starting to drive.

Benefits of using an original controller

Using an original parking brake control module in an Audi brings a number of practical benefits in daily vehicle operation. Key advantages include:

• maintaining the factory characteristics of the electric parking brake,
• proper cooperation with other electronic systems of the vehicle,
• reduced risk of communication errors and warning lights appearing on the instrument cluster,
• the ability to perform standard diagnostic procedures using factory service tools.

For workshops and users, this means easier configuration, predictable system behavior, and stable operation of the parking brake system after replacing a faulty controller.

Product characteristics and installation

The offered module comes from dismantling and is marked as used, which allows for an economical repair of the brake system while maintaining original build quality. The component is intended for installation in place of the factory controller, using the existing electrical wiring and mounts in the vehicle.

In practice, installation comes down to:

• removing the faulty controller from the vehicle,
• connecting the electrical connectors to the offered module,
• securing it in the location provided by the manufacturer,
• performing adaptation and diagnostics using an appropriate tester.

This approach allows for the restoration of full electric parking brake functionality without the need to interfere with the installation design.

Application in service practice

The parking brake control module is particularly useful in situations where the vehicle has problems with engaging or releasing the brake, error messages appear on the dashboard, or the system stops responding to commands from the cabin. Replacing the controller with a functional unit from dismantling often allows avoiding costly repairs of the entire system.

For workshops specializing in automotive electronics, this is a functional base for professional repair, enabling quick restoration of vehicle efficiency while maintaining compliance with the manufacturer's factory standards.

If you are planning a comprehensive repair or upgrade of the braking zone in your Audi and need other components from the same group, such as ABS controllers, ESP modules, or powertrain management units, check the available parts in the Audi electronic control modules and controllers category.

Substantive support and electronics selection

When working with automotive electronics, it is worth using reliable sources of knowledge regarding diagnostics, adaptation, and module programming. In the context of modern control systems, an article describing a practical approach to repairing modules and using parts from dismantling may be helpful – more information can be found in the material Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models using parts from dismantling?.

If you want to plan your purchases of used components more broadly – from electronics to mechanical elements – it is also worth reading the guide on completing parts in one place, available at the link Comprehensive supply: From the engine to the smallest clip – how to complete used car parts in one place?. This will allow you to better organize the repair process and optimize service costs.