Mini Cooper R55 R56 R57 ABS DSC Hydro Braking Unit Pump 6798842 6798846

Mini Cooper R55 R56 R57 ABS DSC Hydro Braking Unit Pump is an original stability control and braking system component designed for Mini R-series models. The integrated pump and control unit block is responsible for precise pressure distribution in the brake circuits and advanced ABS and DSC functions, supporting safety during daily operation. This is an OEM solution that allows for the restoration of proper brake assistance system performance without compromising on fitment or communication with the vehicle's electronics.

Specifications and technical data

• SKU: 6798842
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 6798842
• Substitutable numbers: 34516798847, 6798847, 34506785178 34516792557 34516785910 34506786226, 6785178 6792557 6785910 6786226, 34516790383 34506786223 34516793234, 6790383 6786223 6793234, 34516798842 34526798846, 6798842 6798846
• Category: Other Brake Parts

Function and role of the ABS/DSC pump in Mini R55 R56 R57

The presented pump with control unit operates at the heart of the braking system, managing pressure in the lines and interacting with wheel speed sensors and body control modules. In practice, this means:

• active wheel slip control during braking (ABS function),
• stability control support in emergency situations (DSC function),
• precise pressure control in individual brake circuits,
• integration with the vehicle's electronics to Mini factory standards.

As a result, the braking system maintains predictable characteristics, and the car's reactions to sudden maneuvers remain consistent with the manufacturer's specifications.

Unit construction: pump + control unit

The element is a complete hydraulic-electronic assembly, where the mechanical part (pump and valve block) is directly connected to the control module. This design ensures:

• short signal paths between the electronics and hydraulic valves,
• optimized response to changes in grip and pressure,
• factory fitment for the electrical harness and brake lines of the Mini R-series.

Combining the control unit with the hydraulic block in a single module limits the number of potential leak points and facilitates diagnostics in the event of ABS or DSC errors.

Benefits of using an original Mini module

Using the original pump and control unit assembly in the Mini R55, R56, and R57 allows for maintaining braking system performance parameters consistent with factory calibration. Compared to aftermarket replacements or attempts at refurbishing parts of unknown origin, the original module offers:

• full compatibility with the software and CAN network of the specific Mini model,
• proper cooperation with active safety systems,
• preservation of factory ABS and DSC operating strategies under various road conditions.

This is particularly important in vehicles where predictable behavior during dynamic driving and consistent braking system response are essential.

Selection, installation, and practical aspects

When selecting an ABS/DSC pump for the Mini R-series, it is crucial to match it to the specific vehicle configuration and ensure compliance with the OEM part number and interchangeable numbers, which are listed in the technical specifications section. This facilitates:

• avoiding communication issues between the control unit and other modules,
• reducing the risk of ABS/DSC errors appearing after installation,
• ensuring the correct operation of the stability control functions.

After installation, the module may require brake system bleeding and adaptation procedures using an appropriate diagnostic tester, in accordance with service practices for Mini vehicles.

Product condition and service application

The offered item is in used condition, making it an attractive service solution for users looking for a factory component at a reasonable price. This type of module is particularly effective in situations where:

• the original ABS/DSC pump has suffered mechanical or electrical damage,
• the vehicle exhibits persistent ABS or DSC system errors,
• replacing the complete assembly is necessary instead of partial repairs.

Choosing an original, used module allows for maintaining the consistency of the braking system with the rest of the installation while reducing repair costs.

If you are planning a comprehensive repair or upgrade of the braking zone in your Mini and need other elements from the same group, such as pumps, control modules, or additional hydraulic components, check the available parts in the Other Mini category.

To compare the characteristics of advanced braking systems and the differences between standard and sports versions, it is worth reading an article describing the construction of more powerful models, such as Audi RS vs other models – what is hidden under the hood and chassis?, which helps to better understand the importance of a functional ABS/DSC module in high-performance cars.