BMW E81 E87 E90 E91 E92 E93 DSC Hydro Braking Pump 6784765 6784766

Visual condition of the part

The product shows signs of use visible in the photos.

BMW E81 E87 E90 E91 E92 E93 DSC Hydro Braking Pump is an original component from the ABS and ESP System group, designed for advanced control of vehicle stability and brake system pressure. The use of a factory DSC module ensures consistency with the vehicle's electronics, which translates into predictable performance of active safety systems.

Specifications and technical data

• SKU: 6784811-2
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6784811
• Substitutable numbers: 34506784811, 6784811, 34516784765, 6784765, 34526784766, 6784766, 34502460431, 2460431, 34502460457, 2460457, 34506777164, 6777164
• Category: ABS & Stability Hydraulic Units

Purpose and function in the vehicle

The DSC Hydro Braking Pump in BMW E81, E87, E90, E91, E92, and E93 models is responsible for precise pressure management in the brake circuits, working in conjunction with wheel speed sensors, the ABS control module, and the stability control system. This component is crucial for the proper operation of functions such as brake force regulation, anti-lock braking, and vehicle stabilization during sudden maneuvers.

By using an original BMW solution, full compatibility with the factory electrical and hydraulic architecture is maintained, which minimizes the risk of diagnostic errors and communication issues within the vehicle's bus system.

Application in BMW models

The presented pump is intended for BMW vehicles from the 1 and 3 series E-generation family, in hatchback, sedan, estate, coupe, and convertible body styles. Proper matching to a specific car configuration (engine, model year, equipment) is done by verifying the OEM part number and available interchangeable numbers in the service documentation or the manufacturer's catalog.

This solution is particularly important for brake system repairs following a DSC module failure, when replacing a component after a collision, or in situations where errors related to the ABS and traction control system appear.

Technical characteristics and advantages of using OEM

The DSC Hydro Braking Pump belongs to a group of precision components where compliance of hydraulic and electronic parameters with factory specifications is essential. Using an original BMW component from the ABS and ESP System category allows you to maintain:

• proper cooperation with the ABS/DSC control unit,
• stable pressure in the brake circuits under various road conditions,
• consistency with factory traction and stability control algorithms,
• correct operation of the emergency brake assist function.

The used OEM component is often chosen as a service solution because it retains the original design and operating parameters, while simultaneously allowing for the optimization of repair costs compared to a new part.

Condition, verification, and part selection

The DSC Hydro Braking Pump is offered as a used part, which means it comes from vehicle dismantling and should be verified for hydraulic system tightness and electronic communication correctness before installation. It is recommended that installation and diagnostics be performed by a workshop with experience in working with BMW ABS and ESP systems.

Selection of the appropriate pump should always be based on comparing the OEM part number and reference numbers with the vehicle documentation. This helps avoid compatibility issues, controller errors, and the need for re-bleeding and dismantling the system.

Comprehensive service for the BMW braking zone

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other elements from the same group, such as control modules, wheel speed sensors, or pressure lines, check the available parts in the BMW ABS and ESP System category.

Technical knowledge and operation

When performing service work related to safety systems, it is also worth considering the condition of other comfort and vehicle electronics systems. For users who want to better understand the principles of selecting original components and service schedules within comfort equipment, the following article will be helpful: Air conditioning and heating – part selection and maintenance for year-round comfort. It allows you to organize your knowledge about the operation of used OEM components in modern cars.