Audi A4 S4 B9 3.0 TFSI Quattro Brake Pump ABS Control Braking Unit 8W0907379K

Audi A4 S4 B9 3.0 TFSI Quattro Brake Pump ABS Control Braking Unit is a specialized component from the ABS and ESP system category, designed for vehicles with a petrol engine and all-wheel drive. Using an original module from this series allows you to maintain the factory operating characteristics of the braking system, driving stability, and effective support for active safety systems.

Specifications and technical data

• SKU: 8W0907379K
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0907379K
• Substitutable numbers: 8W0907379K, 8W0 907 379 K, 8W0 907 379 J
• Fuel type: Petrol
• Category: ABS & Stability Hydraulic Units

Purpose and function in the vehicle

The described unit combines the function of a hydraulic brake pump with an electronic ABS/ESP control unit, working in conjunction with wheel speed sensors, pressure sensors, and the 3.0 TFSI Quattro drivetrain. It is responsible for precise pressure distribution in the brake circuits, wheel slip control during braking, and support for electronic stability control systems in low-grip conditions.

Thanks to its integration with the vehicle's electronics, the module works with systems responsible for traction and torque distribution, which is particularly important in powerful petrol versions of the Audi A4 and S4 B9. A correctly selected component ensures consistent operation of all driver assistance systems.

Benefits of using an original ABS/ESP module

Using a factory solution from this series ensures:

• consistency of operating parameters with the onboard control unit software,
• proper ABS and ESP operating characteristics matched to the weight and performance of the 3.0 TFSI Quattro version,
• correct cooperation with the all-wheel-drive system,
• stable pressure in the brake circuits during dynamic driving.

For the user, this means more predictable vehicle behavior in emergency situations, more effective braking on slippery surfaces, and a reduction in the risk of incorrect error messages in onboard systems.

Characteristics of the used component

The offered module comes from dismantling and has the status of a used part, which allows for an economical repair of the braking system while maintaining the manufacturer's original specifications. This type of solution is particularly beneficial for advanced electronic-hydraulic components, where aftermarket replacements often differ in software or operating characteristics.

Before installation, it is recommended to verify compatibility with the specific vehicle equipment version and to perform adaptation and system bleeding in accordance with Audi service procedures. Proper installation allows you to fully utilize the factory capabilities of the ABS and ESP system in your specific car.

Selection, compatibility, and technical aspects

When selecting this ABS pump for an Audi A4 or S4 B9 with a petrol engine, it is crucial to check compatibility with the OEM part number and the list of interchangeable numbers in the technical specification. In practice, this means matching the module not only to the body generation but also to the specific drivetrain configuration and electronic equipment.

The ABS and ESP system in 3.0 TFSI Quattro versions operates under significant load, which is why using the correct hydraulic-electronic controller has a direct impact on braking efficiency, traction control operation, and cooperation with other safety systems. This solution is particularly important in cars driven dynamically or with higher mileage, where stable pressure in the braking system is critical for safety.

Related components and additional technical information

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

When working with advanced drivetrain and safety system components, it is worth paying attention to the condition of cooperating parts, such as wheel speed sensors or drivetrain elements. Practical tips on assessing the condition of dismantled components and how to avoid common purchasing mistakes can be found in the article: Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.

If you want to better maintain the durability of installed aftermarket components, including hydraulic and electronic elements, a guide dedicated to the operation of dismantled parts will be helpful: How to extend the life of used car parts?. This will make it easier for you to plan the service and operation of your Audi's braking system in the long term.