ABS DSC Module BMW E87 E90 E91 Pump ECU Hydro Unit 6776056 6791521

The BMW E87 E90 E91 ABS DSC Brake Booster is an original braking system component designed for BMW 1 and 3 Series models equipped with ABS and DSC systems. This component, categorized under Other Parts, is responsible for precise pressure control within the system, supporting driving stability and braking effectiveness in various road conditions. A used OEM part is a sensible choice for drivers seeking a proven solution while maintaining a favorable price-to-quality ratio.

Specifications and technical data

• SKU: 6776056
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6776056
• Substitutable numbers: 34516794646, 6794646, 345167705906770590, 345167740716774071, 345167716936771693, 34516791521, 6791521, 6776056, 34526776056
• Category: Other Brake Parts

Purpose and Function in the BMW Braking System

The presented ABS DSC brake booster is an integral module of the active safety system in BMW E87, E90, and E91 series. It works in conjunction with wheel speed sensors and the control unit to:

• stabilize the vehicle during hard braking,
• limit wheel slip when traction is lost,
• support the operation of the traction control and stability control systems,
• ensure even distribution of braking force between axles.

This provides the driver with predictable braking system response, leading to safer vehicle handling in emergency situations.

Compatibility and Interchange Numbers

The booster is designed as an OEM part for selected BMW models, and its design allows for the use of various interchangeable numbers within the same part family. The presence of multiple references in the technical specifications facilitates the selection of the correct module for a specific vehicle configuration, which is particularly important for variations in equipment and engine versions.

Before purchasing, it is advisable to compare the markings with the existing component in your car or verify them using the part number in the specifications to ensure correct fitment for the braking system.

Benefits of Choosing an Original BMW ABS DSC Booster

Choosing an original ABS DSC module for your BMW offers a range of practical advantages:

• maintaining the original operating parameters of the braking system,
• compatibility with the control unit software used in the specific BMW generation,
• proper placement of outlets and electrical connectors, facilitating installation,
• designed for the specific safety systems used in the E87/E90/E91 series.

This ensures a streamlined installation process and reduces the risk of compatibility issues. A used OEM part also lowers repair costs compared to a new part, while preserving the original performance characteristics of the ABS and DSC systems.

Condition, Verification, and Service Application

The ABS DSC brake booster is offered as a used part, meaning it comes from a dismantled vehicle and has been verified for its suitability for further use. This type of component is often chosen by workshops specializing in the BMW brand and by knowledgeable users who:

• are looking for an economical solution while maintaining original construction,
• wish to avoid problems with fitting non-original aftermarket parts,
• plan to restore full functionality of the ABS and DSC systems after a failure.

Before installation, standard service procedures are recommended, including bleeding the braking system and performing adaptation/diagnostics using an appropriate tester to ensure stable operation of the entire system.

Other BMW Parts and Technical Knowledge

If you are looking for other products from the Other Parts category dedicated to this brand, check out our offer at Other BMW Parts, where you will find a wide selection of components for various models.

For those interested in comparing technical solutions in sports versions of cars versus standard variants, including differences in braking and chassis systems, we recommend the blog article: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?. This is a valuable addition to your knowledge of modern powertrain and braking system construction.

Summary

The BMW E87 E90 E91 ABS DSC Brake Booster is a practical solution for users and service centers aiming to restore full braking system functionality while adhering to the original manufacturer's specifications. A correctly selected and installed module supports the operation of the ABS and DSC systems, improving vehicle control and enhancing safety during daily operation.