BMW 1 SERIES E87 ABS DSC MODULE PUMP ECU Hydro Unit 6769748 6769749

BMW 1 SERIES E87 ABS DSC MODULE PUMP ECU Hydro Unit is an original anti-lock braking and stability control system controller, designed for the factory brake pump in the 1 Series. As a component from the ABS Controllers category, it is responsible for precise control of pressure in the brake circuits and integration with the traction control system, which translates into safe and predictable vehicle behavior on the road. This is a solution for users looking for proven, used electronics instead of an expensive new unit.

Specifications and technical data

• SKU: 6794651-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6794651
• Substitutable numbers: 34516794651, 6794651, 34516769748, 6769748, 34526769749, 6769749, 34516769846, 6769846, 34516769750, 6769750
• Category: ABS Control Modules

Purpose and function of the ABS/DSC module

The presented controller is an integral part of the BMW 1 Series E87 generation braking system, combining the functions of an electronic controller and hydraulic pressure distribution in one housing. It works with wheel speed sensors, the DSC system, and the hydraulic pump to:

• prevent wheel lock-up during emergency braking,
• stabilize the vehicle's path in emergency situations,
• support the traction control system during starting and acceleration,
• maintain consistent communication with other modules in the vehicle's network.

As a result, the driver receives a predictable braking system response, and the car maintains stability even on surfaces with varying grip.

Benefits of using an original BMW controller

The original ABS/DSC module ensures proper fitment to the electrical and hydraulic installation of a specific BMW E87 version. In practice, this means:

• factory mounting points and connectors,
• correct cooperation with the vehicle's factory software,
• maintenance of operating parameters in accordance with the manufacturer's specifications.

Choosing a used OEM controller is often a reasonable compromise between cost and quality – especially in the case of safety system electronics, where structural and software compatibility is crucial for the proper operation of the entire system.

Condition, installation, and service aspects

The offered component comes from dismantling and is sold as a used controller with a hydraulic pump. Before installation, a standard service procedure is recommended: checking the electrical installation, brake lines, and bleeding the system after replacement. In many cases, it will be necessary to perform adaptation or coding using an appropriate diagnostic tester so that the module is correctly recognized by the vehicle's other systems.

This approach minimizes the risk of communication errors between controllers and allows for the restoration of full ABS/DSC functionality after the failure of the previous unit.

Selecting the right controller and interchangeable numbers

This unit belongs to a group for which the manufacturer has provided interchangeable numbers, which facilitates the selection of a compatible module for a specific BMW 1 E87 configuration. Before purchasing, it is worth comparing the markings on the old pump with the data in the product's technical specification and verifying compatibility with the vehicle's model year and engine version. This will reduce the risk of wiring, software, or hydraulic parameter incompatibility.

If you want to better understand when choosing used electronics is cost-effective and how to safely select a controller for your car, check out our guide: The second life of electronics – when is it worth choosing used controllers and modules for your car.

Expanding the braking system in a BMW

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other components from the same group, such as additional modules, control units, or related electronic systems, check the available parts in the BMW ABS Controllers category.

When making a decision about choosing components, it is also worth comparing the advantages of new and used parts – in terms of cost, durability, and availability. The following article may be helpful: Car parts – new or used? A comparison of costs and durability, which discusses the practical aspects of such a choice.