BMW E81 E87 E90 ABS DSC Module Pump ECU Hydro Unit 6777159

BMW E81 E87 E90 ABS DSC Module Pump ECU Hydro Unit is an original component from the ABS and ESP System group, designed to work with the DSC stability control system in BMW 1 and 3 Series vehicles. The module combines the functions of an electronic control unit and a hydraulic pump, ensuring precise pressure distribution in the brake circuits and effective support during emergency braking.

Specifications and technical data

• SKU: 6777158
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6777158
• Substitutable numbers: 34512460490, 2460490, 34516794649, 34506779577, 6779577, 6794649, 34526777159, 6777159, 34516777158, 6777158
• Category: ABS & Stability Hydraulic Units

Purpose and function in the vehicle

The presented BMW E81 E87 E90 ABS DSC Module Pump ECU Hydro Unit is a key component responsible for the operation of anti-lock braking systems and vehicle stability assistance. It works with wheel speed sensors, lateral and longitudinal acceleration sensors, and the hydraulic brake system to correct pressure in individual circuits in a fraction of a second.

Thanks to this solution, the car maintains better grip during sudden braking, and the DSC system can react more effectively to axle slip, which translates into more stable handling and a higher level of active safety.

Benefits of using an original ABS DSC module

Using a factory-spec ABS DSC module in BMW E81, E87, and E90 series ensures:

• proper cooperation with the vehicle's factory electronics and control software,
• appropriate hydraulic pump operating parameters across the entire range of working pressures,
• consistent operation of ABS, DSC, and emergency brake assist systems,
• preservation of factory braking characteristics and driving stability.

For the user, this means predictable vehicle behavior in critical situations and no communication issues between modules within the vehicle's network.

Condition, fitment, and installation aspects

The item comes from the BMW parts group and is offered as a used component, which allows for reduced repair costs while maintaining compliance with factory specifications. Before installation, it is recommended to verify compatibility using the OEM part number and interchangeable numbers, as well as to plan for any necessary adaptation or bleeding of the brake system using an appropriate diagnostic tester.

To minimize the risk of errors during selection, it is worth using comparison procedures based on catalog numbers and the equipment of the specific vehicle version. Detailed tips on the safe selection of components by number can be found in the guide Buying parts online without risk – 5 proven ways to verify component compatibility using OEM numbers and paint codes, which also discusses the practice of selecting parts for BMW.

Application in diagnostics and brake system upgrades

In the case of symptoms such as illuminated ABS/DSC warning lights, uneven operation of the stability system, or errors stored in the controller's memory, replacing the BMW E81 E87 E90 ABS DSC Module Pump ECU Hydro Unit is a standard service procedure. A properly selected component allows for the restoration of full functionality of safety systems, and in the case of vehicle upgrades – matching the configuration to a specific equipment version.

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 pumps, control modules, or wheel speed sensors, check the available parts in the BMW ABS and ESP System category.

Summary

BMW E81 E87 E90 ABS DSC Module Pump ECU Hydro Unit is a functional module designed for BMW vehicles that combines electronic control with hydraulic braking, ensuring the efficient operation of ABS and DSC systems. Choosing an original component from this group allows you to maintain the consistency of safety systems, optimize the repair process, and preserve braking characteristics in accordance with the manufacturer's specifications.