Brake Pump Audi A4 S4 B8 A5 8T ABS ESP Module Hydraulic Control 8K0907379CJ

The ABS/ESP Hydraulic Module for Audi A4 / S4 B8 and A5 8T is an original component of the braking system, responsible for precise pressure control in the brake circuits and maintaining driving stability. Thanks to Audi's factory design, this brake pump assembly with ABS and ESP module ensures proper integration with the vehicle's electronics and allows for professional repair of the active safety system. This solution is intended for users who expect compliance with factory specifications and reliable performance of braking assistance systems.

Specifications and technical data

• SKU: 8K0907379CJ
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0907379CJ
• Substitutable numbers: 8K0907379CJ, 8K0 907 379 CJ, 0 265 239 351, 0265239351, 8K0 614 517 GK, 8K0614517GK
• Category: ABS & Stability Hydraulic Units

Purpose and Function in the ABS and ESP System

The presented module plays a key role in the ABS and ESP System of Audi vehicles, combining the hydraulic part with electronic control. It is responsible for:

• regulating brake fluid pressure in individual circuits,
• implementing ABS function – preventing wheel lock-up during braking,
• cooperating with the ESP system – stabilizing the vehicle during loss of traction,
• coordinating operation with wheel speed sensors and the body control module.

This ensures that the braking system maintains proper effectiveness, and the safety systems operate predictably and repeatably, as intended by the manufacturer.

Compatibility with Audi Models

The module has been specifically designed for selected versions of the Audi A4 / S4 B8 generation and Audi A5 8T, which translates to proper mechanical and electrical fit. This means:

• compatibility with factory wiring harnesses and connectors,
• correct placement of hydraulic fittings,
• ability to integrate with the vehicle's original control software.

Selecting parts based on OEM numbers and interchangeable part numbers allows for verification of compatibility with the specific engine and equipment version of the vehicle, which is particularly important when working with advanced safety systems.

Characteristics of a Used Component

The offered module is a used part, sourced from disassembly, allowing for economical repair of the braking system while maintaining the original Audi construction. This type of part is a good solution in situations where:

• the factory module has suffered electronic or hydraulic damage,
• ABS/ESP errors occur and the complete assembly needs replacement,
• compliance with factory equipment is important instead of using aftermarket alternatives.

Choosing an original module from the same design family reduces the risk of problems with coding, bus communication, and mechanical fit.

Professional Selection and Vehicle Integration

To ensure the correct operation of the system, installation by a workshop experienced in working with ABS/ESP systems and with access to Audi diagnostics is recommended. In practice, this means the ability to:

• verify compatibility by OEM number and reference numbers,
• perform module adaptation and potential coding,
• verify system operation after installation.

For users who wish to deepen their knowledge on the selection and diagnostics of control components in a car, an article describing the principles of operation and maintenance of fuel supply systems – Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair – may be helpful, which discusses, among other things, part selection by OEM numbers and the importance of proper diagnostics.

Expanding ABS and ESP System Repair in Audi

If you are planning a comprehensive repair or upgrade of the braking area in your Audi and need other components from the same group, such as pumps, control modules, or hydraulic blocks, check the available parts in the Audi ABS and ESP System category.