BMW 1 3 Series E81 E87 E90 E91 E92 E93 ABS DSC Pump Hydro Unit 6776068 6776069

BMW E87 E90 DSC Brake Booster 6776068 6776069 is an original brake system component designed for BMW 1 Series E87 and 3 Series E90 vehicles equipped with the DSC system. This used brake booster, integrated with the dynamic stability control module, offers a functional solution for drivers looking to restore proper brake system operation while maintaining factory performance characteristics. It is a technically advanced component responsible for precise pressure distribution in the brake circuits and seamless integration with active safety systems.

Specifications and technical data

• SKU: 6777162-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6777162
• Substitutable numbers: 34516777162, 6777162, 34516776068, 6776068, 34526776069, 6776069, 34516779893, 6779893, 34516780237, 6780237, 34516778488, 6778488
• Category: Other Brake Parts

Purpose and Function of the DSC Brake Booster in BMW E87 / E90

The brake booster with DSC system is responsible for generating and modulating pressure within the braking system, while simultaneously working with the vehicle's electronic stability control systems. In BMW E87 and E90 models, this component is crucial for:

• maintaining directional stability during sudden braking or emergency maneuvers,
• precise distribution of braking force among individual wheels,
• cooperation with ABS and DSC systems, which analyze wheel speed and adjust circuit pressure,
• preserving predictable brake pedal feel consistent with BMW's factory settings.

By using an original brake booster with DSC functionality, drivers benefit from the cohesive operation of all safety systems, leading to stable vehicle behavior in various road conditions.

Construction and Integration with the Braking System

The presented BMW brake booster with DSC module features an integrated design, where the hydraulic section is combined with the stability control system's electronic control unit. This architecture ensures:

• compact installation in the engine bay, facilitating fitment in dedicated BMW models,
• hydraulic and electronic synergy – the control module works directly with the pumping section,
• retention of original brake system operating parameters after proper vehicle adaptation.

The original BMW design allows for correct interaction with wheel speed sensors, yaw and lateral acceleration sensors, and other DSC system components, which is essential when replacing a worn or damaged unit.

Selection by OEM Number and Interchange Numbers

The DSC brake booster has a dedicated OEM part number and associated interchange numbers that allow for unambiguous identification of the component in BMW catalogs and parts lookup systems. When planning a replacement, it is recommended to:

• verify the OEM number from the old booster's data plate or service documentation,
• check the reference numbers in the technical specifications of the offer,
• compare compatibility with the specific engine and equipment version of the BMW E87 or E90.

This approach minimizes the risk of selecting an incorrect part and ensures proper integration of the booster with the vehicle's electronics after installation and potential coding.

Condition, Service Application, and Benefits of Installation

The offered DSC brake booster is a used part, presenting an attractive option for users seeking a balance between repair cost and maintaining original BMW specifications. This type of component is suitable for situations where:

• the DSC system reports errors related to pressure or hydraulic module operation,
• there are issues with even braking or incorrect ABS performance,
• a complete booster unit with DSC module replacement is necessary instead of repairing individual sub-components.

A correctly selected and installed BMW brake booster with DSC system can restore brake system stability, reduce dashboard error messages, and enhance driving safety in daily use.

Other Products and Technical Knowledge

If you are also looking for other components in the Other BMW Parts category, explore our offer, where you will find a wide selection of components such as modules, sensors, and safety system parts: Other BMW Parts – Full Range of BMW Parts.

To better understand the differences in brake and chassis systems in higher-class cars, it is worth reading an article comparing sporty Audi versions with standard models, which discusses, among other things, brake characteristics and solutions used in high-performance vehicles: Audi RS vs. Other Models – What's Under the Hood and Chassis?.