Brake Pump BMW F87 M2 F80 M3 F82 M4 DSC Hydro Braking Unit 7851298 8064504

Brake Pump BMW F87 M2 F80 M3 F82 M4 DSC Hydro Braking Unit is a component from the ABS and ESP System group, designed for advanced BMW F-series sports models. The integrated hydraulic module with an electronic ABS controller is responsible for precise pressure regulation in the brake circuits, driving stability, and effective support for active safety systems.

Specifications and technical data

• SKU: 7851298-4
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7851298
• Substitutable numbers: 34517851298, 7851298, 34518064504, 8064504, 7852637
• Category: ABS & Stability Hydraulic Units

Purpose and function in the vehicle

The presented brake pump with an ABS controller has been designed for the sporty BMW F87 M2, F80 M3, and F82 M4 models, where the braking system operates under high load. This unit is responsible for:

• controlling pressure in the brake circuits during standard braking,
• precise metering of braking force during sudden maneuvers,
• cooperation with ABS/ESP stability control systems,
• maintaining wheel traction in emergency situations.

Thanks to the integration of the hydraulic part with the electronic controller, the system can react quickly to changing road conditions, which translates into stable vehicle behavior during dynamic driving.

Benefits of using an original BMW module

The original component from the BMW group ensures compatibility with the vehicle's factory electrical and hydraulic architecture. In practice, this means:

• compliance with factory controller software in the BMW F87 M2, F80 M3, and F82 M4,
• proper cooperation with ABS, ESP, and other safety functions,
• operating parameters adjusted to the characteristics of the sports braking system,
• maintaining the stability system operation strategies intended by the manufacturer.

Choosing such a solution is particularly important in high-power cars, where the repeatability of the braking system's operation has a direct impact on the safety of the driver and passengers.

Component characteristics and installation

The brake pump with an ABS controller in this configuration constitutes a complete assembly designed for installation in the factory mounting location. The module's design allows for:

• connection to the vehicle's existing hydraulic system,
• plugging into the original BMW electrical harness,
• use in the process of repairing or replacing a damaged factory module.

Due to the specific nature of safety systems, it is recommended to perform diagnostic and adaptation procedures using an appropriate tester after installation to ensure proper communication between the controller and the rest of the vehicle.

Product condition and service application

The component comes from the secondary market, which allows for reduced repair costs while maintaining the manufacturer's original specifications. This type of solution is particularly attractive when servicing advanced BMW models, where new ABS and ESP system components are expensive. The module will work well both for standard replacement of a damaged pump and for rebuilding the braking system after a collision or intensive track use.

To better plan your repair budget and consciously use the OEM used parts market, it is worth reading the guide on our blog: rising repair costs and the boom in used parts.

ABS and ESP system in the context of safety

A functional brake pump module with an ABS controller is crucial for the operation of the entire ABS and ESP System. It influences:

• vehicle stability during sudden braking,
• reduction of wheel slip on surfaces with variable traction,
• effective distribution of braking force between the axles,
• cooperation with other driver assistance systems.

Regular inspection of the braking system and suspension condition is essential for fully utilizing the capabilities of safety systems. You can find more about the impact of chassis components on vehicle handling in the article: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers.

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